Ubuntu
linux-source-2.6.22 package

  1. Bug #173652
  2. Comment #108

Comment 108 for bug 173652

Revision history for this message
Petr Menšík (pihhan) wrote : Re: Unable to adjust screen brightness on recent Sony Vaio notebooks, Intel GMA adapter

Please concentrate on fixing correct way of backlight control instead of writing custom scripts. Instead, report please if on correct FN keys it does move backlight bar with OSD and if it dimmed backlight or only bar changed without changing brightness.

I report on my model, using live CD downloaded today, hotkeys does work out of the box pretty nice. It does show backlight OSD, it does move the bar in correct way. After login, it does not work, because i have to switch xrandr control to other method. I have tried all four and all were working but default one: kernel. So i am subjecto to bug #176888 also. After switching xrandr. it does work.

I am including script to gather some (maybe) needed information to solve this problem. We have to figure out what models need xrandr modification and what do not. Please secify your model, exact card revision and status of working before and after xrandr changing to native. I made script to help with that, it should help you to gather info.