Messages in this thread Patch in this message | | | From | Ben Hutchings <> | Date | Sun, 16 Jun 2013 23:01:38 +0100 | Subject | [48/83] ACPI / video: ignore BIOS initial backlight value for HP Pavilion g6 |
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3.2.47-rc1 review patch. If anyone has any objections, please let me know.
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From: Ash Willis <ashwillis.kernel@gmail.com>
commit 780a6ec640a3fed671fc2c40e4dd30c03eca3ac3 upstream.
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> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Ben Hutchings <ben@decadent.org.uk> --- drivers/acpi/video.c | 8 ++++++++ 1 file changed, 8 insertions(+)
--- a/drivers/acpi/video.c +++ b/drivers/acpi/video.c @@ -457,6 +457,14 @@ 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"),
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