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authorAlex Hung <alex.hung@canonical.com>2013-05-06 08:23:43 +0000
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2013-05-12 14:03:14 +0200
commit4ef366c583d6180b1c951147869ee5a3038834f2 (patch)
treecb59211f6efaff1e8e9d2fe1b38503778091efc5 /drivers/acpi
parent36200af867e2cf5adc1ff77214b2524f6111736f (diff)
downloadvexpress-lsk-4ef366c583d6180b1c951147869ee5a3038834f2.tar.gz
ACPI video: ignore BIOS initial backlight value for HP 1000
On HP 1000 lapops, 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://bugs.launchpad.net/bugs/1167760 Signed-off-by: Alex Hung <alex.hung@canonical.com> 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 c3932d0876e..5b32e15a65c 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -456,6 +456,14 @@ static struct dmi_system_id video_dmi_table[] __initdata = {
DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion dm4 Notebook PC"),
},
},
+ {
+ .callback = video_ignore_initial_backlight,
+ .ident = "HP 1000 Notebook PC",
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "HP 1000 Notebook PC"),
+ },
+ },
{}
};