ACPI video: ignore BIOS initial backlight value for HP Pavilion g6
PATCH 1/1 ACPI video: ignore BIOS initial backlight value for HP Pavilion g6
This patch addresses kernel bug 56661. BIOS reports an incorrect backlight value, causing the driver to switch off the backlight completely during startup. This patch ignores the incorrect value from BIOS.
References: https://bugzilla.kernel.org/show_bug.cgi?id=56661
Signed-off-by Ash Willis <[email protected]>
---
drivers/acpi/video.c +8 -0
@@ -458,6 +458,14 @@ static struct dmi_system_id video_dmi_ta }, { .callback = video_ignore_initial_backlight, + .ident = "HP Pavilion g6 Notebook PC", + .matches = { +DMI_MATCH (DMI_BOARD_VENDOR ,"Hewlett-Packard" ), + DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion g6 Notebook PC"), + }, + }, + { + .callback = video_ignore_initial_backlight, .ident = "HP 1000 Notebook PC", .matches = { DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"),
---