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| author | Gustavo Maciel Dias Vieira <gustavo@sagui.org> | 2013-03-04 15:23:37 +0000 |
|---|---|---|
| committer | Ben Hutchings <ben@decadent.org.uk> | 2013-06-19 02:16:51 +0100 |
| commit | c58c2d2597e052789db8fb0864355b3e504d286b (patch) | |
| tree | 8035a4be9577b8848ebaf05c2ca75d8b7af2c692 /drivers/acpi/video.c | |
| parent | 85b69eb4a04bb04920f7a133f90c6c58ecdf0ec2 (diff) | |
| download | kernel_samsung_smdk4412-c58c2d2597e052789db8fb0864355b3e504d286b.zip kernel_samsung_smdk4412-c58c2d2597e052789db8fb0864355b3e504d286b.tar.gz kernel_samsung_smdk4412-c58c2d2597e052789db8fb0864355b3e504d286b.tar.bz2 | |
ACPI video: ignore BIOS backlight value for HP dm4
commit 771d09b3c4c45d4d534a83a68e6331b97fd82e15 upstream.
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>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
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 0e47949..d641a22 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"), + }, + }, {} }; |