Red Hat Bugzilla – Bug 882639
Option "EnableBrightnessControl=1" in xorg.conf not working in last updates
Last modified: 2013-02-26 10:18:24 EST
Description of problem: Starting with kernel 3.6.7. drivers the Option "RegistryDwords" "EnableBrightnessControl = 1" in xorg.conf is not working. This means that the brightness control on the NVidia cards with akmod-nvidia & kmod-nvidia drivers no longer works.
Version-Release number of selected component (if applicable): Fedora 16, kernel and driverы 3.6.7-4
How reproducible: 1) Add " Option "RegistryDwords" "EnableBrightnessControl=1" " on section "Device" in xorg.conf, then press appropriate keys (Fn+Home/Bright Up or Fn+Home/Bright Done).
Steps to Reproduce:
1. Add line "RegistryDwords" "EnableBrightnessControl=1" in "Device" section of xorg.conf, then reboot
2. Press Fn+Home/Bright Up
3. Press Fn+Home/Bright Down
Actual results: Nothing happens
Expected results: Brightness Up/Down
Additional info: ThinkPad T410, Fedora 16-1 Ru, 3.6.7-4, akmod NVidia or kmod NVidia drivers from official repo; all other video functions (GL Cube etc.) still working fine
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