* Re: Sys backlight is empty since landing of "ACPI / PCI: Make PCI root driver use struct acpi_scan_handler" [not found] <117469492.1598370.1372275060043.JavaMail.root@qzdev.se> @ 2013-06-26 19:52 ` Rafael J. Wysocki 2013-06-26 20:05 ` Rafael J. Wysocki 0 siblings, 1 reply; 6+ messages in thread From: Rafael J. Wysocki @ 2013-06-26 19:52 UTC (permalink / raw) To: Cork; +Cc: linux-acpi, Aaron Lu On Wednesday, June 26, 2013 07:31:00 PM Cork wrote: > Hello. This is my first time sending a report like this, so please excuse me if I'm missing some vital information. > > From updating the kernel in Arch linux to 3.9 the brightness controls stopped working on my Clevo P0150HM. I have tried the acpi_backlight=vendor boot parameter but it makes no difference. > > While researching this problem I've found that /sys/class/backlight is empty in the versions where the buttons isn't working. Bisecting points to 00c43b9682507dc622c03172fde1032e2a216e9d [1] as the first commit showing the symptoms. > > Attached is the output from journalctl -b _TRANSFORM=kernel for the two versions. Not sure what other useful information I can provide apart from that, so please direct me if there is something missing. > > [1] https://github.com/torvalds/linux/commit/00c43b9682507dc622c03172fde1032e2a216e9d Interesting. Please send the output of acpidump from your machine. Thanks, Rafael -- I speak only for myself. Rafael J. Wysocki, Intel Open Source Technology Center. ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Sys backlight is empty since landing of "ACPI / PCI: Make PCI root driver use struct acpi_scan_handler" 2013-06-26 19:52 ` Sys backlight is empty since landing of "ACPI / PCI: Make PCI root driver use struct acpi_scan_handler" Rafael J. Wysocki @ 2013-06-26 20:05 ` Rafael J. Wysocki [not found] ` <450286594.1598749.1372279129153.JavaMail.root@qzdev.se> 0 siblings, 1 reply; 6+ messages in thread From: Rafael J. Wysocki @ 2013-06-26 20:05 UTC (permalink / raw) To: Cork; +Cc: linux-acpi, Aaron Lu On Wednesday, June 26, 2013 09:52:46 PM Rafael J. Wysocki wrote: > On Wednesday, June 26, 2013 07:31:00 PM Cork wrote: > > Hello. This is my first time sending a report like this, so please excuse me if I'm missing some vital information. > > > > From updating the kernel in Arch linux to 3.9 the brightness controls stopped working on my Clevo P0150HM. I have tried the acpi_backlight=vendor boot parameter but it makes no difference. > > > > While researching this problem I've found that /sys/class/backlight is empty in the versions where the buttons isn't working. Bisecting points to 00c43b9682507dc622c03172fde1032e2a216e9d [1] as the first commit showing the symptoms. > > > > Attached is the output from journalctl -b _TRANSFORM=kernel for the two versions. Not sure what other useful information I can provide apart from that, so please direct me if there is something missing. > > > > [1] https://github.com/torvalds/linux/commit/00c43b9682507dc622c03172fde1032e2a216e9d > > Interesting. > > Please send the output of acpidump from your machine. Also please put initcall_debug into the kernel command line and send dmesg from the working and not working kernels with that. Thanks, Rafael -- I speak only for myself. Rafael J. Wysocki, Intel Open Source Technology Center. ^ permalink raw reply [flat|nested] 6+ messages in thread
[parent not found: <450286594.1598749.1372279129153.JavaMail.root@qzdev.se>]
* Re: Sys backlight is empty since landing of "ACPI / PCI: Make PCI root driver use struct acpi_scan_handler" [not found] ` <450286594.1598749.1372279129153.JavaMail.root@qzdev.se> @ 2013-06-26 22:08 ` Rafael J. Wysocki 2013-06-27 1:38 ` Aaron Lu 0 siblings, 1 reply; 6+ messages in thread From: Rafael J. Wysocki @ 2013-06-26 22:08 UTC (permalink / raw) To: Cork; +Cc: linux-acpi, Aaron Lu On Wednesday, June 26, 2013 08:38:49 PM Cork wrote: > // Cork OK, thanks. The initialization ordering obviously changed in 3.9 and the ACPI video driver fails to find your backlight device. Can you please tell me what the output of $ find /sys/devices/ -name LNXVIDEO\* is on your system in 3.9 and 3.8? Rafael > > ----- Original Message ----- > > From: "Rafael J. Wysocki" <rjw@sisk.pl> > > To: "Cork" <kernel@box.qzdev.se> > > Cc: linux-acpi@vger.kernel.org, "Aaron Lu" <aaron.lu@intel.com> > > Sent: Wednesday, 26 June, 2013 10:05:38 PM > > Subject: Re: Sys backlight is empty since landing of "ACPI / PCI: Make PCI root driver use struct acpi_scan_handler" > > > > On Wednesday, June 26, 2013 09:52:46 PM Rafael J. Wysocki wrote: > > > On Wednesday, June 26, 2013 07:31:00 PM Cork wrote: > > > > Hello. This is my first time sending a report like this, so > > > > please excuse me if I'm missing some vital information. > > > > > > > > From updating the kernel in Arch linux to 3.9 the brightness > > > > controls stopped working on my Clevo P0150HM. I have tried the > > > > acpi_backlight=vendor boot parameter but it makes no difference. > > > > > > > > While researching this problem I've found that > > > > /sys/class/backlight is empty in the versions where the buttons > > > > isn't working. Bisecting points to > > > > 00c43b9682507dc622c03172fde1032e2a216e9d [1] as the first commit > > > > showing the symptoms. > > > > > > > > Attached is the output from journalctl -b _TRANSFORM=kernel for > > > > the two versions. Not sure what other useful information I can > > > > provide apart from that, so please direct me if there is > > > > something missing. > > > > > > > > [1] > > > > https://github.com/torvalds/linux/commit/00c43b9682507dc622c03172fde1032e2a216e9d > > > > > > Interesting. > > > > > > Please send the output of acpidump from your machine. > > > > Also please put initcall_debug into the kernel command line and send > > dmesg from > > the working and not working kernels with that. > > > > Thanks, > > Rafael > > > > > > -- > > I speak only for myself. > > Rafael J. Wysocki, Intel Open Source Technology Center. > > -- I speak only for myself. Rafael J. Wysocki, Intel Open Source Technology Center. ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Sys backlight is empty since landing of "ACPI / PCI: Make PCI root driver use struct acpi_scan_handler" 2013-06-26 22:08 ` Rafael J. Wysocki @ 2013-06-27 1:38 ` Aaron Lu 2013-06-27 5:40 ` Cork 0 siblings, 1 reply; 6+ messages in thread From: Aaron Lu @ 2013-06-27 1:38 UTC (permalink / raw) To: Rafael J. Wysocki, Cork; +Cc: linux-acpi On 06/27/2013 06:08 AM, Rafael J. Wysocki wrote: > On Wednesday, June 26, 2013 08:38:49 PM Cork wrote: >> // Cork > > OK, thanks. > > The initialization ordering obviously changed in 3.9 and the ACPI video > driver fails to find your backlight device. > > Can you please tell me what the output of > > $ find /sys/devices/ -name LNXVIDEO\* > > is on your system in 3.9 and 3.8? This should be the same problem as bug 58091, where one of the reporter is using a similar system Clevo_P150HMx. And I've checked the ACPI dump of Cork's system, there is also a _ROM method under PCI0. Cork, Possible to test v3.10-rc6 or later kernels? There is a fix for your problem, thanks. Reference: https://bugzilla.kernel.org/show_bug.cgi?id=58091 -Aaron > > Rafael > > >> >> ----- Original Message ----- >>> From: "Rafael J. Wysocki" <rjw@sisk.pl> >>> To: "Cork" <kernel@box.qzdev.se> >>> Cc: linux-acpi@vger.kernel.org, "Aaron Lu" <aaron.lu@intel.com> >>> Sent: Wednesday, 26 June, 2013 10:05:38 PM >>> Subject: Re: Sys backlight is empty since landing of "ACPI / PCI: Make PCI root driver use struct acpi_scan_handler" >>> >>> On Wednesday, June 26, 2013 09:52:46 PM Rafael J. Wysocki wrote: >>>> On Wednesday, June 26, 2013 07:31:00 PM Cork wrote: >>>>> Hello. This is my first time sending a report like this, so >>>>> please excuse me if I'm missing some vital information. >>>>> >>>>> From updating the kernel in Arch linux to 3.9 the brightness >>>>> controls stopped working on my Clevo P0150HM. I have tried the >>>>> acpi_backlight=vendor boot parameter but it makes no difference. >>>>> >>>>> While researching this problem I've found that >>>>> /sys/class/backlight is empty in the versions where the buttons >>>>> isn't working. Bisecting points to >>>>> 00c43b9682507dc622c03172fde1032e2a216e9d [1] as the first commit >>>>> showing the symptoms. >>>>> >>>>> Attached is the output from journalctl -b _TRANSFORM=kernel for >>>>> the two versions. Not sure what other useful information I can >>>>> provide apart from that, so please direct me if there is >>>>> something missing. >>>>> >>>>> [1] >>>>> https://github.com/torvalds/linux/commit/00c43b9682507dc622c03172fde1032e2a216e9d >>>> >>>> Interesting. >>>> >>>> Please send the output of acpidump from your machine. >>> >>> Also please put initcall_debug into the kernel command line and send >>> dmesg from >>> the working and not working kernels with that. >>> >>> Thanks, >>> Rafael >>> >>> >>> -- >>> I speak only for myself. >>> Rafael J. Wysocki, Intel Open Source Technology Center. >>> ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Sys backlight is empty since landing of "ACPI / PCI: Make PCI root driver use struct acpi_scan_handler" 2013-06-27 1:38 ` Aaron Lu @ 2013-06-27 5:40 ` Cork 2013-06-27 12:18 ` Rafael J. Wysocki 0 siblings, 1 reply; 6+ messages in thread From: Cork @ 2013-06-27 5:40 UTC (permalink / raw) To: Aaron Lu; +Cc: Rafael J. Wysocki, Cork, linux-acpi Yes, 3.10.0-rc6 fixes the problem (sorry for not checking this before contacting you). Rafael: 3.8: /sys/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/device:18/LNXVIDEO:00 3.9: /sys/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/device:18/LNXVIDEO:00 3.10-rc6: /sys/devices/LNXSYSTM:00/device:00/PNP0A08:00/device:19/LNXVIDEO:00 // Cork ----- Original Message ----- > From: "Aaron Lu" <aaron.lu@intel.com> > To: "Rafael J. Wysocki" <rjw@sisk.pl>, "Cork" <kernel@box.qzdev.se> > Cc: linux-acpi@vger.kernel.org > Sent: Thursday, 27 June, 2013 3:38:49 AM > Subject: Re: Sys backlight is empty since landing of "ACPI / PCI: Make PCI root driver use struct acpi_scan_handler" > > On 06/27/2013 06:08 AM, Rafael J. Wysocki wrote: > > On Wednesday, June 26, 2013 08:38:49 PM Cork wrote: > >> // Cork > > > > OK, thanks. > > > > The initialization ordering obviously changed in 3.9 and the ACPI > > video > > driver fails to find your backlight device. > > > > Can you please tell me what the output of > > > > $ find /sys/devices/ -name LNXVIDEO\* > > > > is on your system in 3.9 and 3.8? > > This should be the same problem as bug 58091, where one of the > reporter > is using a similar system Clevo_P150HMx. And I've checked the ACPI > dump > of Cork's system, there is also a _ROM method under PCI0. > > Cork, > Possible to test v3.10-rc6 or later kernels? There is a fix for your > problem, thanks. > > Reference: https://bugzilla.kernel.org/show_bug.cgi?id=58091 > > -Aaron > > > > > Rafael > > > > > >> > >> ----- Original Message ----- > >>> From: "Rafael J. Wysocki" <rjw@sisk.pl> > >>> To: "Cork" <kernel@box.qzdev.se> > >>> Cc: linux-acpi@vger.kernel.org, "Aaron Lu" <aaron.lu@intel.com> > >>> Sent: Wednesday, 26 June, 2013 10:05:38 PM > >>> Subject: Re: Sys backlight is empty since landing of "ACPI / PCI: > >>> Make PCI root driver use struct acpi_scan_handler" > >>> > >>> On Wednesday, June 26, 2013 09:52:46 PM Rafael J. Wysocki wrote: > >>>> On Wednesday, June 26, 2013 07:31:00 PM Cork wrote: > >>>>> Hello. This is my first time sending a report like this, so > >>>>> please excuse me if I'm missing some vital information. > >>>>> > >>>>> From updating the kernel in Arch linux to 3.9 the brightness > >>>>> controls stopped working on my Clevo P0150HM. I have tried the > >>>>> acpi_backlight=vendor boot parameter but it makes no > >>>>> difference. > >>>>> > >>>>> While researching this problem I've found that > >>>>> /sys/class/backlight is empty in the versions where the buttons > >>>>> isn't working. Bisecting points to > >>>>> 00c43b9682507dc622c03172fde1032e2a216e9d [1] as the first > >>>>> commit > >>>>> showing the symptoms. > >>>>> > >>>>> Attached is the output from journalctl -b _TRANSFORM=kernel for > >>>>> the two versions. Not sure what other useful information I can > >>>>> provide apart from that, so please direct me if there is > >>>>> something missing. > >>>>> > >>>>> [1] > >>>>> https://github.com/torvalds/linux/commit/00c43b9682507dc622c03172fde1032e2a216e9d > >>>> > >>>> Interesting. > >>>> > >>>> Please send the output of acpidump from your machine. > >>> > >>> Also please put initcall_debug into the kernel command line and > >>> send > >>> dmesg from > >>> the working and not working kernels with that. > >>> > >>> Thanks, > >>> Rafael > >>> > >>> > >>> -- > >>> I speak only for myself. > >>> Rafael J. Wysocki, Intel Open Source Technology Center. > >>> > > ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Sys backlight is empty since landing of "ACPI / PCI: Make PCI root driver use struct acpi_scan_handler" 2013-06-27 5:40 ` Cork @ 2013-06-27 12:18 ` Rafael J. Wysocki 0 siblings, 0 replies; 6+ messages in thread From: Rafael J. Wysocki @ 2013-06-27 12:18 UTC (permalink / raw) To: Cork; +Cc: Aaron Lu, linux-acpi On Thursday, June 27, 2013 05:40:06 AM Cork wrote: > Yes, 3.10.0-rc6 fixes the problem (sorry for not checking this before contacting you). OK, great! Thanks, Rafael > Rafael: > 3.8: /sys/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/device:18/LNXVIDEO:00 > 3.9: /sys/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/device:18/LNXVIDEO:00 > 3.10-rc6: /sys/devices/LNXSYSTM:00/device:00/PNP0A08:00/device:19/LNXVIDEO:00 > > // Cork > > ----- Original Message ----- > > From: "Aaron Lu" <aaron.lu@intel.com> > > To: "Rafael J. Wysocki" <rjw@sisk.pl>, "Cork" <kernel@box.qzdev.se> > > Cc: linux-acpi@vger.kernel.org > > Sent: Thursday, 27 June, 2013 3:38:49 AM > > Subject: Re: Sys backlight is empty since landing of "ACPI / PCI: Make PCI root driver use struct acpi_scan_handler" > > > > On 06/27/2013 06:08 AM, Rafael J. Wysocki wrote: > > > On Wednesday, June 26, 2013 08:38:49 PM Cork wrote: > > >> // Cork > > > > > > OK, thanks. > > > > > > The initialization ordering obviously changed in 3.9 and the ACPI > > > video > > > driver fails to find your backlight device. > > > > > > Can you please tell me what the output of > > > > > > $ find /sys/devices/ -name LNXVIDEO\* > > > > > > is on your system in 3.9 and 3.8? > > > > This should be the same problem as bug 58091, where one of the > > reporter > > is using a similar system Clevo_P150HMx. And I've checked the ACPI > > dump > > of Cork's system, there is also a _ROM method under PCI0. > > > > Cork, > > Possible to test v3.10-rc6 or later kernels? There is a fix for your > > problem, thanks. > > > > Reference: https://bugzilla.kernel.org/show_bug.cgi?id=58091 > > > > -Aaron > > > > > > > > Rafael > > > > > > > > >> > > >> ----- Original Message ----- > > >>> From: "Rafael J. Wysocki" <rjw@sisk.pl> > > >>> To: "Cork" <kernel@box.qzdev.se> > > >>> Cc: linux-acpi@vger.kernel.org, "Aaron Lu" <aaron.lu@intel.com> > > >>> Sent: Wednesday, 26 June, 2013 10:05:38 PM > > >>> Subject: Re: Sys backlight is empty since landing of "ACPI / PCI: > > >>> Make PCI root driver use struct acpi_scan_handler" > > >>> > > >>> On Wednesday, June 26, 2013 09:52:46 PM Rafael J. Wysocki wrote: > > >>>> On Wednesday, June 26, 2013 07:31:00 PM Cork wrote: > > >>>>> Hello. This is my first time sending a report like this, so > > >>>>> please excuse me if I'm missing some vital information. > > >>>>> > > >>>>> From updating the kernel in Arch linux to 3.9 the brightness > > >>>>> controls stopped working on my Clevo P0150HM. I have tried the > > >>>>> acpi_backlight=vendor boot parameter but it makes no > > >>>>> difference. > > >>>>> > > >>>>> While researching this problem I've found that > > >>>>> /sys/class/backlight is empty in the versions where the buttons > > >>>>> isn't working. Bisecting points to > > >>>>> 00c43b9682507dc622c03172fde1032e2a216e9d [1] as the first > > >>>>> commit > > >>>>> showing the symptoms. > > >>>>> > > >>>>> Attached is the output from journalctl -b _TRANSFORM=kernel for > > >>>>> the two versions. Not sure what other useful information I can > > >>>>> provide apart from that, so please direct me if there is > > >>>>> something missing. > > >>>>> > > >>>>> [1] > > >>>>> https://github.com/torvalds/linux/commit/00c43b9682507dc622c03172fde1032e2a216e9d > > >>>> > > >>>> Interesting. > > >>>> > > >>>> Please send the output of acpidump from your machine. > > >>> > > >>> Also please put initcall_debug into the kernel command line and > > >>> send > > >>> dmesg from > > >>> the working and not working kernels with that. > > >>> > > >>> Thanks, > > >>> Rafael > > >>> > > >>> > > >>> -- > > >>> I speak only for myself. > > >>> Rafael J. Wysocki, Intel Open Source Technology Center. > > >>> > > > > -- I speak only for myself. Rafael J. Wysocki, Intel Open Source Technology Center. ^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2013-06-27 12:08 UTC | newest]
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2013-06-26 19:52 ` Sys backlight is empty since landing of "ACPI / PCI: Make PCI root driver use struct acpi_scan_handler" Rafael J. Wysocki
2013-06-26 20:05 ` Rafael J. Wysocki
[not found] ` <450286594.1598749.1372279129153.JavaMail.root@qzdev.se>
2013-06-26 22:08 ` Rafael J. Wysocki
2013-06-27 1:38 ` Aaron Lu
2013-06-27 5:40 ` Cork
2013-06-27 12:18 ` Rafael J. Wysocki
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