FS#33628 - Impossible to adjust brightness in GNOME after kernel upgrade

Attached to Project: Arch Linux
Opened by Dominik Janků (djanku) - Tuesday, 29 January 2013, 19:18 GMT
Last edited by Gerardo Exequiel Pozzi (djgera) - Wednesday, 30 January 2013, 16:36 GMT
Task Type Bug Report
Category System
Status Closed
Assigned To No-one
Architecture x86_64
Severity Medium
Priority Normal
Reported Version
Due in Version Undecided
Due Date Undecided
Percent Complete 100%
Votes 0
Private No

Details

Description:
I've upgraded linux kernel to version 3.7.4-1 and now I can't adjust brightness in GNOME. I've found out that modifing sys file /sys/class/backlight/acpi_video0/brightness doesn't take any effect. But if I write a value to /sys/class/backlight/intel_backlight/brightness it works well.

How can I change settings of DBus to use /sys/class/backlight/intel_backlight/brightness instead of /sys/class/backlight/acpi_video0/brightness ?

Thx

Additional info:
gnome-shell 3.6.2-1
linux 3.7.4-1
This task depends upon

Closed by  Gerardo Exequiel Pozzi (djgera)
Wednesday, 30 January 2013, 16:36 GMT
Reason for closing:  Upstream
Additional comments about closing:  workaround found.
Comment by Dominik Janků (djanku) - Tuesday, 29 January 2013, 19:37 GMT
Ok, I have solved it by adding acpi_backlight=vendor parameter to the kernel.

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