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authorAsh Willis <ashwillis.kernel@gmail.com>2013-05-29 01:27:59 +0000
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2013-06-01 23:52:44 +0200
commit780a6ec640a3fed671fc2c40e4dd30c03eca3ac3 (patch)
tree76c8cce8e0bde2e3aed73886f41a68ca3f144f22 /drivers/acpi
parentfedbe9bc6fd3e14b1ffbb3dac407777ac4a3650c (diff)
downloadvexpress-lsk-780a6ec640a3fed671fc2c40e4dd30c03eca3ac3.tar.gz
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 <ashwillis@programmer.net> Cc: All <stable@vger.kernel.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/acpi')
-rw-r--r--drivers/acpi/video.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index d0937ab3fb6..5d7075d2570 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -458,6 +458,14 @@ static struct dmi_system_id video_dmi_table[] __initdata = {
},
{
.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"),