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ACPI / video: Ignore BIOS initial backlight value for HP 250 G1 

On HP 250 G1 laptops, BIOS reports minimum backlight on boot and
causes backlight to dim completely. This ignores the initial backlight
values and set to max brightness.

References: https://bugzilla.kernel.org/show_bug.cgi?id=63111
Signed-off-by: Kirill Tkhai <tkhai@yandex.ru>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Kirill Tkhai 2013-10-18 15:56:44 +04:00 committed by Rafael J. Wysocki
parent a8d52f4495
commit e37f14a5fb
1 changed files with 8 additions and 0 deletions
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8
drivers/acpi/video.c
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@ -504,6 +504,14 @@ static struct dmi_system_id video_dmi_table[] __initdata = {
DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion m4 Notebook PC"),
},
},
{
.callback = video_ignore_initial_backlight,
.ident = "HP 250 G1",
.matches = {
DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"),
DMI_MATCH(DMI_PRODUCT_NAME, "HP 250 G1 Notebook PC"),
},
},
{}
};