mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-10-06 08:46:46 +00:00
Code Issues Releases Wiki Activity

sony-laptop: brightness regression fix

Browse source 
After commit 540b8bb9c3:

  sony-laptop: fingers off backlight if video.ko is serving this functionality

I can't set brightness on my sony laptop (nothing in /sys/class/backlight).
dmesg says "sony-laptop: Sony: Brightness ignored, must be controlled by ACPI
video driver".

The function acpi_video_backlight_support returns 0 if we should use the
vendor-specific backlight support, while non-0 if the ACPI generic should
be used. Because of this, the check introduced by the said commit appears
reversed.

Signed-off-by: Alessandro Guido <ag@alessandroguido.name>
Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Alessandro Guido 2008-11-12 23:03:28 +01:00 committed by Len Brown
parent 3bdca1b863
commit 38cfc148e1
1 changed files with 1 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
drivers/misc/sony-laptop.c
View file

@ -1038,7 +1038,7 @@ static int sony_nc_add(struct acpi_device *device)
goto outinput;
}
if (!acpi_video_backlight_support()) {
if (acpi_video_backlight_support()) {
printk(KERN_INFO DRV_PFX "Sony: Brightness ignored, must be "
"controlled by ACPI video driver\n");
} else if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "GBRT",