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| author | Zhang Rui <rui.zhang@intel.com> | 2012-12-04 23:30:19 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-12-17 10:37:46 -0800 |
| commit | a5e247e527586e4edee5f24d5e8f85ecf1905ea7 (patch) | |
| tree | d1d43cfa3d8014ddc4575a68db5b92d2e8224301 /drivers/acpi | |
| parent | fe1fa6761bdc53fd7be7524436ad00907100c054 (diff) | |
| download | linux-3.10-a5e247e527586e4edee5f24d5e8f85ecf1905ea7.tar.gz linux-3.10-a5e247e527586e4edee5f24d5e8f85ecf1905ea7.tar.bz2 linux-3.10-a5e247e527586e4edee5f24d5e8f85ecf1905ea7.zip | |
ACPI / video: ignore BIOS initial backlight value for HP Folio 13-2000
commit 129ff8f8d58297b04f47b5d6fad81aa2d08404e1 upstream.
Or else the laptop will boot with a dimmed screen.
References: https://bugzilla.kernel.org/show_bug.cgi?id=51141
Tested-by: Stefan Nagy <public@stefan-nagy.at>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/acpi')
| -rw-r--r-- | drivers/acpi/video.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c index 62d9ee6d077..91357e1a1a8 100644 --- a/drivers/acpi/video.c +++ b/drivers/acpi/video.c @@ -389,6 +389,12 @@ static int __init video_set_bqc_offset(const struct dmi_system_id *d) return 0; } +static int video_ignore_initial_backlight(const struct dmi_system_id *d) +{ + use_bios_initial_backlight = 0; + return 0; +} + static struct dmi_system_id video_dmi_table[] __initdata = { /* * Broken _BQC workaround http://bugzilla.kernel.org/show_bug.cgi?id=13121 @@ -433,6 +439,14 @@ static struct dmi_system_id video_dmi_table[] __initdata = { DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 7720"), }, }, + { + .callback = video_ignore_initial_backlight, + .ident = "HP Folio 13-2000", + .matches = { + DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"), + DMI_MATCH(DMI_PRODUCT_NAME, "HP Folio 13 - 2000 Notebook PC"), + }, + }, {} }; |