diff options
| author | Gustavo Maciel Dias Vieira | 2013-03-04 16:23:37 +0100 |
|---|---|---|
| committer | Rafael J. Wysocki | 2013-03-24 23:01:46 +0100 |
| commit | 771d09b3c4c45d4d534a83a68e6331b97fd82e15 (patch) | |
| tree | 08533a2bf27a326e2ebb06e69b117856a5f27c8d /drivers/acpi/video.c | |
| parent | Linux 3.9-rc4 (diff) | |
| download | kernel-qcow2-linux-771d09b3c4c45d4d534a83a68e6331b97fd82e15.tar.gz kernel-qcow2-linux-771d09b3c4c45d4d534a83a68e6331b97fd82e15.tar.xz kernel-qcow2-linux-771d09b3c4c45d4d534a83a68e6331b97fd82e15.zip | |
ACPI video: ignore BIOS backlight value for HP dm4
On a HP Pavilion dm4 laptop the BIOS sets minimum backlight on boot,
completely dimming the screen. Ignore this initial value for this
machine.
Signed-off-by: Gustavo Maciel Dias Vieira <gustavo@sagui.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/acpi/video.c')
| -rw-r--r-- | drivers/acpi/video.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c index 313f959413dc..f8a28b39b88a 100644 --- a/drivers/acpi/video.c +++ b/drivers/acpi/video.c @@ -447,6 +447,14 @@ static struct dmi_system_id video_dmi_table[] __initdata = { DMI_MATCH(DMI_PRODUCT_NAME, "HP Folio 13 - 2000 Notebook PC"), }, }, + { + .callback = video_ignore_initial_backlight, + .ident = "HP Pavilion dm4", + .matches = { + DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"), + DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion dm4 Notebook PC"), + }, + }, {} }; |