From: Alex Hung <alex.hung@canonical.com>
To: alex.hung@canonical.com, rui.zhang@intel.com, lenb@kernel.org,
rjw@sisk.pl, linux-acpi@vger.kernel.org
Subject: [PATCH] ACPI video: ignore BIOS initial backlight value for HP 1000
Date: Mon, 6 May 2013 16:23:43 +0800 [thread overview]
Message-ID: <1367828623-22998-1-git-send-email-alex.hung@canonical.com> (raw)
On HP 1000 lapops, BIOS reports minimum backlight on boot and
causes backlight to dim completely. This ignores the initial backlight
values and set to max brightness.
Buglink: https://bugs.launchpad.net/bugs/1167760
Signed-off-by: Alex Hung <alex.hung@canonical.com>
---
drivers/acpi/video.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index c3932d0..5b32e15 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -456,6 +456,14 @@ static struct dmi_system_id video_dmi_table[] __initdata = {
DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion dm4 Notebook PC"),
},
},
+ {
+ .callback = video_ignore_initial_backlight,
+ .ident = "HP 1000 Notebook PC",
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "HP 1000 Notebook PC"),
+ },
+ },
{}
};
--
1.7.9.5
next reply other threads:[~2013-05-06 8:23 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-05-06 8:23 Alex Hung [this message]
2013-05-07 23:59 ` [PATCH] ACPI video: ignore BIOS initial backlight value for HP 1000 Rafael J. Wysocki
2013-11-12 2:03 ` Aaron Lu
2013-11-12 17:04 ` Alex Hung
2013-11-13 2:07 ` More initial black screen system for removal from DMI table Aaron Lu
2013-11-14 11:50 ` Gustavo Maciel Dias Vieira
2013-11-15 0:42 ` Aaron Lu
2013-11-15 1:17 ` Gustavo Maciel Dias Vieira
2013-11-15 1:31 ` Aaron Lu
2013-11-15 1:33 ` Gustavo Maciel Dias Vieira
2013-11-15 3:24 ` [PATCH] ACPI / video: clean up DMI table for initial black screen problem Aaron Lu
2013-11-15 6:39 ` [PATCH v2] " Aaron Lu
2013-11-16 1:28 ` Rafael J. Wysocki
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