* [PATCH] ACPI / Video: blacklist some samsung laptops
@ 2012-03-05 9:01 Corentin Chary
0 siblings, 0 replies; 13+ messages in thread
From: Corentin Chary @ 2012-03-05 9:01 UTC (permalink / raw)
To: Len Brown; +Cc: Corentin Chary, Paul Gortmaker, linux-acpi, linux-kernel
From: Corentin Chary <corentincj@iksaif.net>
On these laptops, the ACPI video is not functional, and very unlikely
to be fixed by the vendor. Note that intel_backlight works for some
of these laptops, and the backlight from samsung-laptop always work.
The good news is that newer laptops have functional ACPI video device
and won't end up growing this list.
Signed-off-by: Corentin Chary <corentincj@iksaif.net>
---
drivers/acpi/video_detect.c | 49 +++++++++++++++++++++++++++++++++++++++++++
1 files changed, 49 insertions(+), 0 deletions(-)
diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c
index f3f0fe7..b6f6979 100644
--- a/drivers/acpi/video_detect.c
+++ b/drivers/acpi/video_detect.c
@@ -132,6 +132,53 @@ find_video(acpi_handle handle, u32 lvl, void *context, void **rv)
return AE_OK;
}
+/* Force to use vendor driver when the ACPI device is known to be
+ * buggy */
+static int video_detect_force_vendor(const struct dmi_system_id *d)
+{
+ acpi_video_support |= ACPI_VIDEO_BACKLIGHT_DMI_VENDOR;
+ return 0;
+}
+
+static struct dmi_system_id video_detect_dmi_table[] = {
+ {
+ .callback = video_detect_force_vendor,
+ .ident = "N150P",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "N150P"),
+ DMI_MATCH(DMI_BOARD_NAME, "N150P"),
+ },
+ },
+ {
+ .callback = video_detect_force_vendor,
+ .ident = "N145P/N250P/N260P",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "N145P/N250P/N260P"),
+ DMI_MATCH(DMI_BOARD_NAME, "N145P/N250P/N260P"),
+ },
+ },
+ {
+ .callback = video_detect_force_vendor,
+ .ident = "N150/N210/N220",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "N150/N210/N220"),
+ DMI_MATCH(DMI_BOARD_NAME, "N150/N210/N220"),
+ },
+ },
+ {
+ .callback = video_detect_force_vendor,
+ .ident = "NF110/NF210/NF310",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "NF110/NF210/NF310"),
+ DMI_MATCH(DMI_BOARD_NAME, "NF110/NF210/NF310"),
+ },
+ },
+};
+
/*
* Returns the video capabilities of a specific ACPI graphics device
*
@@ -164,6 +211,8 @@ long acpi_video_get_capabilities(acpi_handle graphics_handle)
* ACPI_VIDEO_BACKLIGHT_DMI_VENDOR;
*}
*/
+
+ dmi_check_system(video_detect_dmi_table);
} else {
status = acpi_bus_get_device(graphics_handle, &tmp_dev);
if (ACPI_FAILURE(status)) {
--
1.7.3.4
^ permalink raw reply related [flat|nested] 13+ messages in thread* [PATCH] ACPI / Video: blacklist some samsung laptops
@ 2012-01-17 7:08 Corentin Chary
2012-01-17 20:19 ` Seth Forshee
2012-01-30 8:26 ` Corentin Chary
0 siblings, 2 replies; 13+ messages in thread
From: Corentin Chary @ 2012-01-17 7:08 UTC (permalink / raw)
To: platform-driver-x86
Cc: Zhang Rui, linux-kernel, Andrzej Prochyra, Matthew Garrett,
David Herrmann, Richard Schütz, Seth Forshee, Len Brown,
linux-acpi, Corentin Chary
On these laptops, the ACPI video is not functional, and very unlikely
to be fixed by the vendor. Note that intel_backlight works for some
of these laptops, and the backlight from samsung-laptop always work.
The good news is that newer laptops have functional ACPI video device
and won't end up growing this list.
Signed-off-by: Corentin Chary <corentincj@iksaif.net>
---
drivers/acpi/video_detect.c | 49 +++++++++++++++++++++++++++++++++++++++++++
1 files changed, 49 insertions(+), 0 deletions(-)
diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c
index 45d8097..66be45e 100644
--- a/drivers/acpi/video_detect.c
+++ b/drivers/acpi/video_detect.c
@@ -132,6 +132,53 @@ find_video(acpi_handle handle, u32 lvl, void *context, void **rv)
return AE_OK;
}
+/* Force to use vendor driver when the ACPI device is known to be
+ * buggy */
+static int video_detect_force_vendor(const struct dmi_system_id *d)
+{
+ acpi_video_support |= ACPI_VIDEO_BACKLIGHT_DMI_VENDOR;
+ return 0;
+}
+
+static struct dmi_system_id video_detect_dmi_table[] = {
+ {
+ .callback = video_detect_force_vendor,
+ .ident = "N150P",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "N150P"),
+ DMI_MATCH(DMI_BOARD_NAME, "N150P"),
+ },
+ },
+ {
+ .callback = video_detect_force_vendor,
+ .ident = "N145P/N250P/N260P",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "N145P/N250P/N260P"),
+ DMI_MATCH(DMI_BOARD_NAME, "N145P/N250P/N260P"),
+ },
+ },
+ {
+ .callback = video_detect_force_vendor,
+ .ident = "N150/N210/N220",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "N150/N210/N220"),
+ DMI_MATCH(DMI_BOARD_NAME, "N150/N210/N220"),
+ },
+ },
+ {
+ .callback = video_detect_force_vendor,
+ .ident = "NF110/NF210/NF310",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "NF110/NF210/NF310"),
+ DMI_MATCH(DMI_BOARD_NAME, "NF110/NF210/NF310"),
+ },
+ },
+};
+
/*
* Returns the video capabilities of a specific ACPI graphics device
*
@@ -164,6 +211,8 @@ long acpi_video_get_capabilities(acpi_handle graphics_handle)
* ACPI_VIDEO_BACKLIGHT_DMI_VENDOR;
*}
*/
+
+ dmi_check_system(video_detect_dmi_table);
} else {
status = acpi_bus_get_device(graphics_handle, &tmp_dev);
if (ACPI_FAILURE(status)) {
--
1.7.5.4
^ permalink raw reply related [flat|nested] 13+ messages in thread* Re: [PATCH] ACPI / Video: blacklist some samsung laptops
2012-01-17 7:08 Corentin Chary
@ 2012-01-17 20:19 ` Seth Forshee
2012-01-30 8:26 ` Corentin Chary
1 sibling, 0 replies; 13+ messages in thread
From: Seth Forshee @ 2012-01-17 20:19 UTC (permalink / raw)
To: Corentin Chary
Cc: platform-driver-x86, Zhang Rui, linux-kernel, Andrzej Prochyra,
Matthew Garrett, David Herrmann, Richard Schütz, Len Brown,
linux-acpi
On Tue, Jan 17, 2012 at 08:08:18AM +0100, Corentin Chary wrote:
> On these laptops, the ACPI video is not functional, and very unlikely
> to be fixed by the vendor. Note that intel_backlight works for some
> of these laptops, and the backlight from samsung-laptop always work.
>
> The good news is that newer laptops have functional ACPI video device
> and won't end up growing this list.
>
> Signed-off-by: Corentin Chary <corentincj@iksaif.net>
> ---
> drivers/acpi/video_detect.c | 49 +++++++++++++++++++++++++++++++++++++++++++
> 1 files changed, 49 insertions(+), 0 deletions(-)
>
> diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c
> index 45d8097..66be45e 100644
> --- a/drivers/acpi/video_detect.c
> +++ b/drivers/acpi/video_detect.c
> @@ -132,6 +132,53 @@ find_video(acpi_handle handle, u32 lvl, void *context, void **rv)
> return AE_OK;
> }
>
> +/* Force to use vendor driver when the ACPI device is known to be
> + * buggy */
> +static int video_detect_force_vendor(const struct dmi_system_id *d)
> +{
> + acpi_video_support |= ACPI_VIDEO_BACKLIGHT_DMI_VENDOR;
> + return 0;
> +}
> +
> +static struct dmi_system_id video_detect_dmi_table[] = {
> + {
> + .callback = video_detect_force_vendor,
> + .ident = "N150P",
> + .matches = {
> + DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
> + DMI_MATCH(DMI_PRODUCT_NAME, "N150P"),
> + DMI_MATCH(DMI_BOARD_NAME, "N150P"),
> + },
> + },
> + {
> + .callback = video_detect_force_vendor,
> + .ident = "N145P/N250P/N260P",
> + .matches = {
> + DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
> + DMI_MATCH(DMI_PRODUCT_NAME, "N145P/N250P/N260P"),
> + DMI_MATCH(DMI_BOARD_NAME, "N145P/N250P/N260P"),
> + },
> + },
> + {
> + .callback = video_detect_force_vendor,
> + .ident = "N150/N210/N220",
> + .matches = {
> + DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
> + DMI_MATCH(DMI_PRODUCT_NAME, "N150/N210/N220"),
> + DMI_MATCH(DMI_BOARD_NAME, "N150/N210/N220"),
> + },
> + },
> + {
> + .callback = video_detect_force_vendor,
> + .ident = "NF110/NF210/NF310",
> + .matches = {
> + DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
> + DMI_MATCH(DMI_PRODUCT_NAME, "NF110/NF210/NF310"),
> + DMI_MATCH(DMI_BOARD_NAME, "NF110/NF210/NF310"),
> + },
> + },
> +};
> +
> /*
> * Returns the video capabilities of a specific ACPI graphics device
> *
> @@ -164,6 +211,8 @@ long acpi_video_get_capabilities(acpi_handle graphics_handle)
> * ACPI_VIDEO_BACKLIGHT_DMI_VENDOR;
> *}
> */
> +
> + dmi_check_system(video_detect_dmi_table);
> } else {
> status = acpi_bus_get_device(graphics_handle, &tmp_dev);
> if (ACPI_FAILURE(status)) {
> --
> 1.7.5.4
>
This is working great on the NF310. Thanks!
^ permalink raw reply [flat|nested] 13+ messages in thread* Re: [PATCH] ACPI / Video: blacklist some samsung laptops
2012-01-17 7:08 Corentin Chary
2012-01-17 20:19 ` Seth Forshee
@ 2012-01-30 8:26 ` Corentin Chary
2012-02-19 19:56 ` Corentin Chary
1 sibling, 1 reply; 13+ messages in thread
From: Corentin Chary @ 2012-01-30 8:26 UTC (permalink / raw)
To: Len Brown
Cc: Zhang Rui, linux-kernel, Andrzej Prochyra, Matthew Garrett,
David Herrmann, Richard Schütz, Seth Forshee, linux-acpi,
Corentin Chary, platform-driver-x86
On Tue, Jan 17, 2012 at 8:08 AM, Corentin Chary <corentincj@iksaif.net> wrote:
> On these laptops, the ACPI video is not functional, and very unlikely
> to be fixed by the vendor. Note that intel_backlight works for some
> of these laptops, and the backlight from samsung-laptop always work.
>
> The good news is that newer laptops have functional ACPI video device
> and won't end up growing this list.
>
> Signed-off-by: Corentin Chary <corentincj@iksaif.net>
> ---
> drivers/acpi/video_detect.c | 49 +++++++++++++++++++++++++++++++++++++++++++
> 1 files changed, 49 insertions(+), 0 deletions(-)
>
> diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c
> index 45d8097..66be45e 100644
> --- a/drivers/acpi/video_detect.c
> +++ b/drivers/acpi/video_detect.c
> @@ -132,6 +132,53 @@ find_video(acpi_handle handle, u32 lvl, void *context, void **rv)
> return AE_OK;
> }
>
> +/* Force to use vendor driver when the ACPI device is known to be
> + * buggy */
> +static int video_detect_force_vendor(const struct dmi_system_id *d)
> +{
> + acpi_video_support |= ACPI_VIDEO_BACKLIGHT_DMI_VENDOR;
> + return 0;
> +}
> +
> +static struct dmi_system_id video_detect_dmi_table[] = {
> + {
> + .callback = video_detect_force_vendor,
> + .ident = "N150P",
> + .matches = {
> + DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
> + DMI_MATCH(DMI_PRODUCT_NAME, "N150P"),
> + DMI_MATCH(DMI_BOARD_NAME, "N150P"),
> + },
> + },
> + {
> + .callback = video_detect_force_vendor,
> + .ident = "N145P/N250P/N260P",
> + .matches = {
> + DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
> + DMI_MATCH(DMI_PRODUCT_NAME, "N145P/N250P/N260P"),
> + DMI_MATCH(DMI_BOARD_NAME, "N145P/N250P/N260P"),
> + },
> + },
> + {
> + .callback = video_detect_force_vendor,
> + .ident = "N150/N210/N220",
> + .matches = {
> + DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
> + DMI_MATCH(DMI_PRODUCT_NAME, "N150/N210/N220"),
> + DMI_MATCH(DMI_BOARD_NAME, "N150/N210/N220"),
> + },
> + },
> + {
> + .callback = video_detect_force_vendor,
> + .ident = "NF110/NF210/NF310",
> + .matches = {
> + DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
> + DMI_MATCH(DMI_PRODUCT_NAME, "NF110/NF210/NF310"),
> + DMI_MATCH(DMI_BOARD_NAME, "NF110/NF210/NF310"),
> + },
> + },
> +};
> +
> /*
> * Returns the video capabilities of a specific ACPI graphics device
> *
> @@ -164,6 +211,8 @@ long acpi_video_get_capabilities(acpi_handle graphics_handle)
> * ACPI_VIDEO_BACKLIGHT_DMI_VENDOR;
> *}
> */
> +
> + dmi_check_system(video_detect_dmi_table);
> } else {
> status = acpi_bus_get_device(graphics_handle, &tmp_dev);
> if (ACPI_FAILURE(status)) {
> --
> 1.7.5.4
>
Hi Len,
Maybe this patch should go through your tree and not platform-drivers-x86 ?
Thanks,
--
Corentin Chary
http://xf.iksaif.net
^ permalink raw reply [flat|nested] 13+ messages in thread* Re: [PATCH] ACPI / Video: blacklist some samsung laptops
2012-01-30 8:26 ` Corentin Chary
@ 2012-02-19 19:56 ` Corentin Chary
2012-02-20 11:06 ` David Herrmann
0 siblings, 1 reply; 13+ messages in thread
From: Corentin Chary @ 2012-02-19 19:56 UTC (permalink / raw)
To: Len Brown
Cc: Zhang Rui, linux-kernel, Andrzej Prochyra, Matthew Garrett,
David Herrmann, Richard Schütz, Seth Forshee, linux-acpi,
Corentin Chary, platform-driver-x86
On Mon, Jan 30, 2012 at 9:26 AM, Corentin Chary
<corentin.chary@gmail.com> wrote:
> On Tue, Jan 17, 2012 at 8:08 AM, Corentin Chary <corentincj@iksaif.net> wrote:
>> On these laptops, the ACPI video is not functional, and very unlikely
>> to be fixed by the vendor. Note that intel_backlight works for some
>> of these laptops, and the backlight from samsung-laptop always work.
>>
>> The good news is that newer laptops have functional ACPI video device
>> and won't end up growing this list.
>>
>> Signed-off-by: Corentin Chary <corentincj@iksaif.net>
>> ---
>> drivers/acpi/video_detect.c | 49 +++++++++++++++++++++++++++++++++++++++++++
>> 1 files changed, 49 insertions(+), 0 deletions(-)
>>
>> diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c
>> index 45d8097..66be45e 100644
>> --- a/drivers/acpi/video_detect.c
>> +++ b/drivers/acpi/video_detect.c
>> @@ -132,6 +132,53 @@ find_video(acpi_handle handle, u32 lvl, void *context, void **rv)
>> return AE_OK;
>> }
>>
>> +/* Force to use vendor driver when the ACPI device is known to be
>> + * buggy */
>> +static int video_detect_force_vendor(const struct dmi_system_id *d)
>> +{
>> + acpi_video_support |= ACPI_VIDEO_BACKLIGHT_DMI_VENDOR;
>> + return 0;
>> +}
>> +
>> +static struct dmi_system_id video_detect_dmi_table[] = {
>> + {
>> + .callback = video_detect_force_vendor,
>> + .ident = "N150P",
>> + .matches = {
>> + DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
>> + DMI_MATCH(DMI_PRODUCT_NAME, "N150P"),
>> + DMI_MATCH(DMI_BOARD_NAME, "N150P"),
>> + },
>> + },
>> + {
>> + .callback = video_detect_force_vendor,
>> + .ident = "N145P/N250P/N260P",
>> + .matches = {
>> + DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
>> + DMI_MATCH(DMI_PRODUCT_NAME, "N145P/N250P/N260P"),
>> + DMI_MATCH(DMI_BOARD_NAME, "N145P/N250P/N260P"),
>> + },
>> + },
>> + {
>> + .callback = video_detect_force_vendor,
>> + .ident = "N150/N210/N220",
>> + .matches = {
>> + DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
>> + DMI_MATCH(DMI_PRODUCT_NAME, "N150/N210/N220"),
>> + DMI_MATCH(DMI_BOARD_NAME, "N150/N210/N220"),
>> + },
>> + },
>> + {
>> + .callback = video_detect_force_vendor,
>> + .ident = "NF110/NF210/NF310",
>> + .matches = {
>> + DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
>> + DMI_MATCH(DMI_PRODUCT_NAME, "NF110/NF210/NF310"),
>> + DMI_MATCH(DMI_BOARD_NAME, "NF110/NF210/NF310"),
>> + },
>> + },
>> +};
>> +
>> /*
>> * Returns the video capabilities of a specific ACPI graphics device
>> *
>> @@ -164,6 +211,8 @@ long acpi_video_get_capabilities(acpi_handle graphics_handle)
>> * ACPI_VIDEO_BACKLIGHT_DMI_VENDOR;
>> *}
>> */
>> +
>> + dmi_check_system(video_detect_dmi_table);
>> } else {
>> status = acpi_bus_get_device(graphics_handle, &tmp_dev);
>> if (ACPI_FAILURE(status)) {
>> --
>> 1.7.5.4
>>
>
> Hi Len,
>
> Maybe this patch should go through your tree and not platform-drivers-x86 ?
Ping ?
--
Corentin Chary
http://xf.iksaif.net
^ permalink raw reply [flat|nested] 13+ messages in thread* Re: [PATCH] ACPI / Video: blacklist some samsung laptops
2012-02-19 19:56 ` Corentin Chary
@ 2012-02-20 11:06 ` David Herrmann
2012-02-20 14:27 ` Corentin Chary
0 siblings, 1 reply; 13+ messages in thread
From: David Herrmann @ 2012-02-20 11:06 UTC (permalink / raw)
To: Corentin Chary
Cc: Len Brown, Zhang Rui, linux-kernel, Andrzej Prochyra,
Matthew Garrett, Richard Schütz, Seth Forshee, linux-acpi,
Corentin Chary, platform-driver-x86
Hi Len
On Sun, Feb 19, 2012 at 8:56 PM, Corentin Chary
<corentin.chary@gmail.com> wrote:
> On Mon, Jan 30, 2012 at 9:26 AM, Corentin Chary
> <corentin.chary@gmail.com> wrote:
>> On Tue, Jan 17, 2012 at 8:08 AM, Corentin Chary <corentincj@iksaif.net> wrote:
>>> On these laptops, the ACPI video is not functional, and very unlikely
>>> to be fixed by the vendor. Note that intel_backlight works for some
>>> of these laptops, and the backlight from samsung-laptop always work.
>>>
>>> The good news is that newer laptops have functional ACPI video device
>>> and won't end up growing this list.
>>>
>>> Signed-off-by: Corentin Chary <corentincj@iksaif.net>
>>> ---
>>> drivers/acpi/video_detect.c | 49 +++++++++++++++++++++++++++++++++++++++++++
>>> 1 files changed, 49 insertions(+), 0 deletions(-)
>>>
>>> diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c
>>> index 45d8097..66be45e 100644
>>> --- a/drivers/acpi/video_detect.c
>>> +++ b/drivers/acpi/video_detect.c
>>> @@ -132,6 +132,53 @@ find_video(acpi_handle handle, u32 lvl, void *context, void **rv)
>>> return AE_OK;
>>> }
>>>
>>> +/* Force to use vendor driver when the ACPI device is known to be
>>> + * buggy */
>>> +static int video_detect_force_vendor(const struct dmi_system_id *d)
>>> +{
>>> + acpi_video_support |= ACPI_VIDEO_BACKLIGHT_DMI_VENDOR;
>>> + return 0;
>>> +}
>>> +
>>> +static struct dmi_system_id video_detect_dmi_table[] = {
>>> + {
>>> + .callback = video_detect_force_vendor,
>>> + .ident = "N150P",
>>> + .matches = {
>>> + DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
>>> + DMI_MATCH(DMI_PRODUCT_NAME, "N150P"),
>>> + DMI_MATCH(DMI_BOARD_NAME, "N150P"),
>>> + },
>>> + },
>>> + {
>>> + .callback = video_detect_force_vendor,
>>> + .ident = "N145P/N250P/N260P",
>>> + .matches = {
>>> + DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
>>> + DMI_MATCH(DMI_PRODUCT_NAME, "N145P/N250P/N260P"),
>>> + DMI_MATCH(DMI_BOARD_NAME, "N145P/N250P/N260P"),
>>> + },
>>> + },
>>> + {
>>> + .callback = video_detect_force_vendor,
>>> + .ident = "N150/N210/N220",
>>> + .matches = {
>>> + DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
>>> + DMI_MATCH(DMI_PRODUCT_NAME, "N150/N210/N220"),
>>> + DMI_MATCH(DMI_BOARD_NAME, "N150/N210/N220"),
>>> + },
>>> + },
>>> + {
>>> + .callback = video_detect_force_vendor,
>>> + .ident = "NF110/NF210/NF310",
>>> + .matches = {
>>> + DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
>>> + DMI_MATCH(DMI_PRODUCT_NAME, "NF110/NF210/NF310"),
>>> + DMI_MATCH(DMI_BOARD_NAME, "NF110/NF210/NF310"),
>>> + },
>>> + },
>>> +};
>>> +
>>> /*
>>> * Returns the video capabilities of a specific ACPI graphics device
>>> *
>>> @@ -164,6 +211,8 @@ long acpi_video_get_capabilities(acpi_handle graphics_handle)
>>> * ACPI_VIDEO_BACKLIGHT_DMI_VENDOR;
>>> *}
>>> */
>>> +
>>> + dmi_check_system(video_detect_dmi_table);
>>> } else {
>>> status = acpi_bus_get_device(graphics_handle, &tmp_dev);
>>> if (ACPI_FAILURE(status)) {
>>> --
>>> 1.7.5.4
>>>
>>
>> Hi Len,
>>
>> Maybe this patch should go through your tree and not platform-drivers-x86 ?
>
> Ping ?
This is actually a regression on Samsung notebooks as the backlight is
no longer working with linux-3.2. It would be really nice to see this
in the stable branch or at least in linux-3.3.
The samsung driver disables its own backlight driver if ACPI core
handles the backlight since linux-3.2. If you don't want to pickup
this patch it would be nice to see the samsung driver fixing this
issue.
Regards
David
> --
> Corentin Chary
> http://xf.iksaif.net
^ permalink raw reply [flat|nested] 13+ messages in thread* Re: [PATCH] ACPI / Video: blacklist some samsung laptops
2012-02-20 11:06 ` David Herrmann
@ 2012-02-20 14:27 ` Corentin Chary
0 siblings, 0 replies; 13+ messages in thread
From: Corentin Chary @ 2012-02-20 14:27 UTC (permalink / raw)
To: David Herrmann
Cc: Len Brown, Zhang Rui, linux-kernel, Andrzej Prochyra,
Matthew Garrett, Richard Schütz, Seth Forshee, linux-acpi,
platform-driver-x86
On Mon, Feb 20, 2012 at 12:06 PM, David Herrmann
<dh.herrmann@googlemail.com> wrote:
> Hi Len
>
> On Sun, Feb 19, 2012 at 8:56 PM, Corentin Chary
> <corentin.chary@gmail.com> wrote:
>> On Mon, Jan 30, 2012 at 9:26 AM, Corentin Chary
>> <corentin.chary@gmail.com> wrote:
>>> On Tue, Jan 17, 2012 at 8:08 AM, Corentin Chary <corentincj@iksaif.net> wrote:
>>>> On these laptops, the ACPI video is not functional, and very unlikely
>>>> to be fixed by the vendor. Note that intel_backlight works for some
>>>> of these laptops, and the backlight from samsung-laptop always work.
>>>>
>>>> The good news is that newer laptops have functional ACPI video device
>>>> and won't end up growing this list.
>>>>
>>>> Signed-off-by: Corentin Chary <corentincj@iksaif.net>
>>>> ---
>>>> drivers/acpi/video_detect.c | 49 +++++++++++++++++++++++++++++++++++++++++++
>>>> 1 files changed, 49 insertions(+), 0 deletions(-)
>>>>
>>>> diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c
>>>> index 45d8097..66be45e 100644
>>>> --- a/drivers/acpi/video_detect.c
>>>> +++ b/drivers/acpi/video_detect.c
>>>> @@ -132,6 +132,53 @@ find_video(acpi_handle handle, u32 lvl, void *context, void **rv)
>>>> return AE_OK;
>>>> }
>>>>
>>>> +/* Force to use vendor driver when the ACPI device is known to be
>>>> + * buggy */
>>>> +static int video_detect_force_vendor(const struct dmi_system_id *d)
>>>> +{
>>>> + acpi_video_support |= ACPI_VIDEO_BACKLIGHT_DMI_VENDOR;
>>>> + return 0;
>>>> +}
>>>> +
>>>> +static struct dmi_system_id video_detect_dmi_table[] = {
>>>> + {
>>>> + .callback = video_detect_force_vendor,
>>>> + .ident = "N150P",
>>>> + .matches = {
>>>> + DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
>>>> + DMI_MATCH(DMI_PRODUCT_NAME, "N150P"),
>>>> + DMI_MATCH(DMI_BOARD_NAME, "N150P"),
>>>> + },
>>>> + },
>>>> + {
>>>> + .callback = video_detect_force_vendor,
>>>> + .ident = "N145P/N250P/N260P",
>>>> + .matches = {
>>>> + DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
>>>> + DMI_MATCH(DMI_PRODUCT_NAME, "N145P/N250P/N260P"),
>>>> + DMI_MATCH(DMI_BOARD_NAME, "N145P/N250P/N260P"),
>>>> + },
>>>> + },
>>>> + {
>>>> + .callback = video_detect_force_vendor,
>>>> + .ident = "N150/N210/N220",
>>>> + .matches = {
>>>> + DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
>>>> + DMI_MATCH(DMI_PRODUCT_NAME, "N150/N210/N220"),
>>>> + DMI_MATCH(DMI_BOARD_NAME, "N150/N210/N220"),
>>>> + },
>>>> + },
>>>> + {
>>>> + .callback = video_detect_force_vendor,
>>>> + .ident = "NF110/NF210/NF310",
>>>> + .matches = {
>>>> + DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
>>>> + DMI_MATCH(DMI_PRODUCT_NAME, "NF110/NF210/NF310"),
>>>> + DMI_MATCH(DMI_BOARD_NAME, "NF110/NF210/NF310"),
>>>> + },
>>>> + },
>>>> +};
>>>> +
>>>> /*
>>>> * Returns the video capabilities of a specific ACPI graphics device
>>>> *
>>>> @@ -164,6 +211,8 @@ long acpi_video_get_capabilities(acpi_handle graphics_handle)
>>>> * ACPI_VIDEO_BACKLIGHT_DMI_VENDOR;
>>>> *}
>>>> */
>>>> +
>>>> + dmi_check_system(video_detect_dmi_table);
>>>> } else {
>>>> status = acpi_bus_get_device(graphics_handle, &tmp_dev);
>>>> if (ACPI_FAILURE(status)) {
>>>> --
>>>> 1.7.5.4
>>>>
>>>
>>> Hi Len,
>>>
>>> Maybe this patch should go through your tree and not platform-drivers-x86 ?
>>
>> Ping ?
>
> This is actually a regression on Samsung notebooks as the backlight is
> no longer working with linux-3.2. It would be really nice to see this
> in the stable branch or at least in linux-3.3.
>
> The samsung driver disables its own backlight driver if ACPI core
> handles the backlight since linux-3.2. If you don't want to pickup
> this patch it would be nice to see the samsung driver fixing this
> issue.
>
> Regards
> David
David, please note that non of my changes are merged in 3.2 or 3.3,
they are still in the platform-x86 tree.
But you are right, if they are merged in 3.4 (and I really hope so)
then we will need this patch or there will be a regression.
Anyway, this patch can, and should, be merged as soon as possible
because DE or even xrandr may want to use the non functionnal acpi
backlight instead of others.
Thanks,
--
Corentin Chary
http://xf.iksaif.net
^ permalink raw reply [flat|nested] 13+ messages in thread
[parent not found: <20120105150832.GA25386@ubuntu-macmini>]
* [PATCH] ACPI / Video: blacklist some samsung laptops
[not found] <20120105150832.GA25386@ubuntu-macmini>
@ 2012-01-07 14:12 ` Corentin Chary
2012-01-08 10:46 ` Seth Forshee
2012-01-09 16:39 ` David Herrmann
0 siblings, 2 replies; 13+ messages in thread
From: Corentin Chary @ 2012-01-07 14:12 UTC (permalink / raw)
To: platform-driver-x86
Cc: Zhang Rui, linux-kernel, Andrzej Prochyra, Matthew Garrett,
David Herrmann, Richard Schütz, Seth Forshee, Len Brown,
linux-acpi, Corentin Chary
On these laptops, the ACPI video is not functional, and very unlikely
to be fixed by the vendor. Note that intel_backlight works for some
of these laptops, and the backlight from samsung-laptop always work.
The good news is that newer laptops have functional ACPI video device
and won't end up growing this list.
Signed-off-by: Corentin Chary <corentincj@iksaif.net>
---
Could the concerned people test this patch and check that it correctly
disable the acpi_video backlight ?
drivers/acpi/video_detect.c | 40 ++++++++++++++++++++++++++++++++++++++++
1 files changed, 40 insertions(+), 0 deletions(-)
diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c
index 45d8097..376bce2 100644
--- a/drivers/acpi/video_detect.c
+++ b/drivers/acpi/video_detect.c
@@ -132,6 +132,44 @@ find_video(acpi_handle handle, u32 lvl, void *context, void **rv)
return AE_OK;
}
+/* Force to use vendor driver when the ACPI device is known to be
+ * buggy */
+static int video_detect_force_vendor(const struct dmi_system_id *d)
+{
+ acpi_video_support |= ACPI_VIDEO_BACKLIGHT_DMI_VENDOR;
+ return 0;
+}
+
+static struct dmi_system_id video_detect_dmi_table[] = {
+ {
+ .callback = video_detect_force_vendor,
+ .ident = "N150P",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "N150P"),
+ DMI_MATCH(DMI_BOARD_NAME, "N150P"),
+ },
+ },
+ {
+ .callback = video_detect_force_vendor,
+ .ident = "N145P/N250P/N260P",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "N145P/N250P/N260P"),
+ DMI_MATCH(DMI_BOARD_NAME, "N145P/N250P/N260P"),
+ },
+ },
+ {
+ .callback = video_detect_force_vendor,
+ .ident = "N150/N210/N220",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "N150/N210/N220"),
+ DMI_MATCH(DMI_BOARD_NAME, "N150/N210/N220"),
+ },
+ },
+};
+
/*
* Returns the video capabilities of a specific ACPI graphics device
*
@@ -164,6 +202,8 @@ long acpi_video_get_capabilities(acpi_handle graphics_handle)
* ACPI_VIDEO_BACKLIGHT_DMI_VENDOR;
*}
*/
+
+ dmi_check_system(video_detect_dmi_table);
} else {
status = acpi_bus_get_device(graphics_handle, &tmp_dev);
if (ACPI_FAILURE(status)) {
--
1.7.5.4
^ permalink raw reply related [flat|nested] 13+ messages in thread* Re: [PATCH] ACPI / Video: blacklist some samsung laptops
2012-01-07 14:12 ` Corentin Chary
@ 2012-01-08 10:46 ` Seth Forshee
2012-01-08 12:36 ` Corentin Chary
2012-01-09 16:39 ` David Herrmann
1 sibling, 1 reply; 13+ messages in thread
From: Seth Forshee @ 2012-01-08 10:46 UTC (permalink / raw)
To: Corentin Chary
Cc: platform-driver-x86, Zhang Rui, linux-kernel, Andrzej Prochyra,
Matthew Garrett, David Herrmann, Richard Schütz, Len Brown,
linux-acpi
On Sat, Jan 07, 2012 at 03:12:38PM +0100, Corentin Chary wrote:
> On these laptops, the ACPI video is not functional, and very unlikely
> to be fixed by the vendor. Note that intel_backlight works for some
> of these laptops, and the backlight from samsung-laptop always work.
>
> The good news is that newer laptops have functional ACPI video device
> and won't end up growing this list.
>
> Signed-off-by: Corentin Chary <corentincj@iksaif.net>
> ---
>
> Could the concerned people test this patch and check that it correctly
> disable the acpi_video backlight ?
>
> drivers/acpi/video_detect.c | 40 ++++++++++++++++++++++++++++++++++++++++
> 1 files changed, 40 insertions(+), 0 deletions(-)
>
> diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c
> index 45d8097..376bce2 100644
> --- a/drivers/acpi/video_detect.c
> +++ b/drivers/acpi/video_detect.c
> @@ -132,6 +132,44 @@ find_video(acpi_handle handle, u32 lvl, void *context, void **rv)
> return AE_OK;
> }
>
> +/* Force to use vendor driver when the ACPI device is known to be
> + * buggy */
> +static int video_detect_force_vendor(const struct dmi_system_id *d)
> +{
> + acpi_video_support |= ACPI_VIDEO_BACKLIGHT_DMI_VENDOR;
> + return 0;
> +}
> +
> +static struct dmi_system_id video_detect_dmi_table[] = {
> + {
> + .callback = video_detect_force_vendor,
> + .ident = "N150P",
> + .matches = {
> + DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
> + DMI_MATCH(DMI_PRODUCT_NAME, "N150P"),
> + DMI_MATCH(DMI_BOARD_NAME, "N150P"),
> + },
> + },
> + {
> + .callback = video_detect_force_vendor,
> + .ident = "N145P/N250P/N260P",
> + .matches = {
> + DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
> + DMI_MATCH(DMI_PRODUCT_NAME, "N145P/N250P/N260P"),
> + DMI_MATCH(DMI_BOARD_NAME, "N145P/N250P/N260P"),
> + },
> + },
> + {
> + .callback = video_detect_force_vendor,
> + .ident = "N150/N210/N220",
> + .matches = {
> + DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
> + DMI_MATCH(DMI_PRODUCT_NAME, "N150/N210/N220"),
> + DMI_MATCH(DMI_BOARD_NAME, "N150/N210/N220"),
> + },
> + },
> +};
> +
I don't see NF110/NF210/NF310 in this list. Was that an oversight?
^ permalink raw reply [flat|nested] 13+ messages in thread* Re: [PATCH] ACPI / Video: blacklist some samsung laptops
2012-01-08 10:46 ` Seth Forshee
@ 2012-01-08 12:36 ` Corentin Chary
2012-01-08 13:40 ` Seth Forshee
0 siblings, 1 reply; 13+ messages in thread
From: Corentin Chary @ 2012-01-08 12:36 UTC (permalink / raw)
To: Corentin Chary, platform-driver-x86, Zhang Rui, linux-kernel,
Andrzej Prochyra, Matthew Garrett, David Herrmann,
Richard Schütz, Len Brown, linux-acpi
On Sun, Jan 8, 2012 at 11:46 AM, Seth Forshee
<seth.forshee@canonical.com> wrote:
> On Sat, Jan 07, 2012 at 03:12:38PM +0100, Corentin Chary wrote:
>> On these laptops, the ACPI video is not functional, and very unlikely
>> to be fixed by the vendor. Note that intel_backlight works for some
>> of these laptops, and the backlight from samsung-laptop always work.
>>
>> The good news is that newer laptops have functional ACPI video device
>> and won't end up growing this list.
>>
>> Signed-off-by: Corentin Chary <corentincj@iksaif.net>
>> ---
>>
>> Could the concerned people test this patch and check that it correctly
>> disable the acpi_video backlight ?
>>
>> drivers/acpi/video_detect.c | 40 ++++++++++++++++++++++++++++++++++++++++
>> 1 files changed, 40 insertions(+), 0 deletions(-)
>>
>> diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c
>> index 45d8097..376bce2 100644
>> --- a/drivers/acpi/video_detect.c
>> +++ b/drivers/acpi/video_detect.c
>> @@ -132,6 +132,44 @@ find_video(acpi_handle handle, u32 lvl, void *context, void **rv)
>> return AE_OK;
>> }
>>
>> +/* Force to use vendor driver when the ACPI device is known to be
>> + * buggy */
>> +static int video_detect_force_vendor(const struct dmi_system_id *d)
>> +{
>> + acpi_video_support |= ACPI_VIDEO_BACKLIGHT_DMI_VENDOR;
>> + return 0;
>> +}
>> +
>> +static struct dmi_system_id video_detect_dmi_table[] = {
>> + {
>> + .callback = video_detect_force_vendor,
>> + .ident = "N150P",
>> + .matches = {
>> + DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
>> + DMI_MATCH(DMI_PRODUCT_NAME, "N150P"),
>> + DMI_MATCH(DMI_BOARD_NAME, "N150P"),
>> + },
>> + },
>> + {
>> + .callback = video_detect_force_vendor,
>> + .ident = "N145P/N250P/N260P",
>> + .matches = {
>> + DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
>> + DMI_MATCH(DMI_PRODUCT_NAME, "N145P/N250P/N260P"),
>> + DMI_MATCH(DMI_BOARD_NAME, "N145P/N250P/N260P"),
>> + },
>> + },
>> + {
>> + .callback = video_detect_force_vendor,
>> + .ident = "N150/N210/N220",
>> + .matches = {
>> + DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
>> + DMI_MATCH(DMI_PRODUCT_NAME, "N150/N210/N220"),
>> + DMI_MATCH(DMI_BOARD_NAME, "N150/N210/N220"),
>> + },
>> + },
>> +};
>> +
>
> I don't see NF110/NF210/NF310 in this list. Was that an oversight?
Ooops. Could you add it and try the patch, then send me lines you added ?
Thanks,
--
Corentin Chary
http://xf.iksaif.net
--
To unsubscribe from this list: send the line "unsubscribe linux-acpi" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
^ permalink raw reply [flat|nested] 13+ messages in thread* Re: [PATCH] ACPI / Video: blacklist some samsung laptops
2012-01-08 12:36 ` Corentin Chary
@ 2012-01-08 13:40 ` Seth Forshee
0 siblings, 0 replies; 13+ messages in thread
From: Seth Forshee @ 2012-01-08 13:40 UTC (permalink / raw)
To: Corentin Chary
Cc: Corentin Chary, platform-driver-x86, Zhang Rui, linux-kernel,
Andrzej Prochyra, Matthew Garrett, David Herrmann,
Richard Schütz, Len Brown, linux-acpi
On Sun, Jan 08, 2012 at 01:36:45PM +0100, Corentin Chary wrote:
> On Sun, Jan 8, 2012 at 11:46 AM, Seth Forshee
> <seth.forshee@canonical.com> wrote:
> > On Sat, Jan 07, 2012 at 03:12:38PM +0100, Corentin Chary wrote:
> >> On these laptops, the ACPI video is not functional, and very unlikely
> >> to be fixed by the vendor. Note that intel_backlight works for some
> >> of these laptops, and the backlight from samsung-laptop always work.
> >>
> >> The good news is that newer laptops have functional ACPI video device
> >> and won't end up growing this list.
> >>
> >> Signed-off-by: Corentin Chary <corentincj@iksaif.net>
> >> ---
> >>
> >> Could the concerned people test this patch and check that it correctly
> >> disable the acpi_video backlight ?
> >>
> >> drivers/acpi/video_detect.c | 40 ++++++++++++++++++++++++++++++++++++++++
> >> 1 files changed, 40 insertions(+), 0 deletions(-)
> >>
> >> diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c
> >> index 45d8097..376bce2 100644
> >> --- a/drivers/acpi/video_detect.c
> >> +++ b/drivers/acpi/video_detect.c
> >> @@ -132,6 +132,44 @@ find_video(acpi_handle handle, u32 lvl, void *context, void **rv)
> >> return AE_OK;
> >> }
> >>
> >> +/* Force to use vendor driver when the ACPI device is known to be
> >> + * buggy */
> >> +static int video_detect_force_vendor(const struct dmi_system_id *d)
> >> +{
> >> + acpi_video_support |= ACPI_VIDEO_BACKLIGHT_DMI_VENDOR;
> >> + return 0;
> >> +}
> >> +
> >> +static struct dmi_system_id video_detect_dmi_table[] = {
> >> + {
> >> + .callback = video_detect_force_vendor,
> >> + .ident = "N150P",
> >> + .matches = {
> >> + DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
> >> + DMI_MATCH(DMI_PRODUCT_NAME, "N150P"),
> >> + DMI_MATCH(DMI_BOARD_NAME, "N150P"),
> >> + },
> >> + },
> >> + {
> >> + .callback = video_detect_force_vendor,
> >> + .ident = "N145P/N250P/N260P",
> >> + .matches = {
> >> + DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
> >> + DMI_MATCH(DMI_PRODUCT_NAME, "N145P/N250P/N260P"),
> >> + DMI_MATCH(DMI_BOARD_NAME, "N145P/N250P/N260P"),
> >> + },
> >> + },
> >> + {
> >> + .callback = video_detect_force_vendor,
> >> + .ident = "N150/N210/N220",
> >> + .matches = {
> >> + DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
> >> + DMI_MATCH(DMI_PRODUCT_NAME, "N150/N210/N220"),
> >> + DMI_MATCH(DMI_BOARD_NAME, "N150/N210/N220"),
> >> + },
> >> + },
> >> +};
> >> +
> >
> > I don't see NF110/NF210/NF310 in this list. Was that an oversight?
>
> Ooops. Could you add it and try the patch, then send me lines you added ?
> Thanks,
Sure, but it won't be until next week. I'm travelling this week and
don't have the machine with me.
^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [PATCH] ACPI / Video: blacklist some samsung laptops
2012-01-07 14:12 ` Corentin Chary
2012-01-08 10:46 ` Seth Forshee
@ 2012-01-09 16:39 ` David Herrmann
2012-01-09 22:34 ` Andrzej Prochyra
1 sibling, 1 reply; 13+ messages in thread
From: David Herrmann @ 2012-01-09 16:39 UTC (permalink / raw)
To: Corentin Chary
Cc: platform-driver-x86, Zhang Rui, linux-kernel, Andrzej Prochyra,
Matthew Garrett, Richard Schütz, Seth Forshee, Len Brown,
linux-acpi
Hi Corentin
On Sat, Jan 7, 2012 at 3:12 PM, Corentin Chary <corentincj@iksaif.net> wrote:
> On these laptops, the ACPI video is not functional, and very unlikely
> to be fixed by the vendor. Note that intel_backlight works for some
> of these laptops, and the backlight from samsung-laptop always work.
>
> The good news is that newer laptops have functional ACPI video device
> and won't end up growing this list.
>
> Signed-off-by: Corentin Chary <corentincj@iksaif.net>
> ---
>
> Could the concerned people test this patch and check that it correctly
> disable the acpi_video backlight ?
Works like a charm on my N210 with linux-3.2. Feel free to add a:
Tested-by: David Herrmann <dh.herrmann@googlemail.com>
I will talk to the intel drm developers about the intel_backlight
issues as they don't seem related to this driver.
Thanks
David
^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [PATCH] ACPI / Video: blacklist some samsung laptops
2012-01-09 16:39 ` David Herrmann
@ 2012-01-09 22:34 ` Andrzej Prochyra
0 siblings, 0 replies; 13+ messages in thread
From: Andrzej Prochyra @ 2012-01-09 22:34 UTC (permalink / raw)
To: David Herrmann
Cc: Corentin Chary, platform-driver-x86, Zhang Rui, linux-kernel,
Matthew Garrett, Richard Schütz, Seth Forshee, Len Brown,
linux-acpi
David Herrmann <dh.herrmann@googlemail.com> writes:
> On Sat, Jan 7, 2012 at 3:12 PM, Corentin Chary <corentincj@iksaif.net> wrote:
>> On these laptops, the ACPI video is not functional, and very unlikely
>> to be fixed by the vendor. Note that intel_backlight works for some
>> of these laptops, and the backlight from samsung-laptop always work.
>>
>> The good news is that newer laptops have functional ACPI video device
>> and won't end up growing this list.
>>
>> Signed-off-by: Corentin Chary <corentincj@iksaif.net>
>> ---
>>
>> Could the concerned people test this patch and check that it correctly
>> disable the acpi_video backlight ?
>
> Works like a charm on my N210 with linux-3.2. Feel free to add a:
> Tested-by: David Herrmann <dh.herrmann@googlemail.com>
>
> I will talk to the intel drm developers about the intel_backlight
> issues as they don't seem related to this driver.
I can confirm on my N150 Plus. Now only 'intel_backlight' is created
and exhibits the aforementioned issues.
--
Andrzej Prochyra
<andrzej@prochyra.name>
^ permalink raw reply [flat|nested] 13+ messages in thread
end of thread, other threads:[~2012-03-05 9:10 UTC | newest]
Thread overview: 13+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2012-03-05 9:01 [PATCH] ACPI / Video: blacklist some samsung laptops Corentin Chary
-- strict thread matches above, loose matches on Subject: below --
2012-01-17 7:08 Corentin Chary
2012-01-17 20:19 ` Seth Forshee
2012-01-30 8:26 ` Corentin Chary
2012-02-19 19:56 ` Corentin Chary
2012-02-20 11:06 ` David Herrmann
2012-02-20 14:27 ` Corentin Chary
[not found] <20120105150832.GA25386@ubuntu-macmini>
2012-01-07 14:12 ` Corentin Chary
2012-01-08 10:46 ` Seth Forshee
2012-01-08 12:36 ` Corentin Chary
2012-01-08 13:40 ` Seth Forshee
2012-01-09 16:39 ` David Herrmann
2012-01-09 22:34 ` Andrzej Prochyra
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