diff options
| author | Andy Whitcroft <apw@canonical.com> | 2009-11-09 17:30:29 +0000 |
|---|---|---|
| committer | Leann Ogasawara <leann.ogasawara@canonical.com> | 2012-05-21 06:44:28 -0700 |
| commit | cc5f3a84a25cb554c3d5eb3243f7e03057d4dea3 (patch) | |
| tree | b1eacdd773e69a1a9c3a8f49c0e671b66d4ff9a5 /drivers | |
| parent | 5a0c412cc9409d88dfb3377d8ed9042cd1706abb (diff) | |
UBUNTU: SAUCE: (no-up) set /proc/acpi/video/*/DOS to 4 by default
BugLink: http://bugs.launchpad.net/bugs/458982
acpi_video_bus_start_devices() in drivers/acpi/video.c sets the default
ACPI DOS value to 0, which lets the OS handle toggling of display output
but still leaves the BIOS handling brightness levels automatically when
connecting/disconnecting AC.
We want the OS to handle both where possible, so a better default would
be to set this to 4.
This likely will regress systems using proprietary video drivers which
will need to change this setting back using the sysfs interfaces.
Signed-off-by: Andy Whitcroft <apw@canonical.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/acpi/video.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c index 9577b6fa265..2ed59075ff1 100644 --- a/drivers/acpi/video.c +++ b/drivers/acpi/video.c @@ -1423,7 +1423,7 @@ static int acpi_video_bus_put_devices(struct acpi_video_bus *video) static int acpi_video_bus_start_devices(struct acpi_video_bus *video) { - return acpi_video_bus_DOS(video, 0, 0); + return acpi_video_bus_DOS(video, 0, 1); } static int acpi_video_bus_stop_devices(struct acpi_video_bus *video) |