Gnome 3 and how to make open source radeon driver play quitely

Gnome 3, or Gnome Shell apparently makes the worst in proprietary ATI Radeon drivers (fglrx) come out. Just tried to use the couple together in the new openSuSe 12.1 with grave consequences. There seems to be no hope with fixing that for now.

But, there is a way to fix fan speed control with the open source driver, if it’s not working for you… The only reason why I installed fglrx was because “radeon” open source driver was making my HD 4850 noisy. As it turns out, it’s relatively easy to fix that.

As root enter: echo “auto” > /sys/class/drm/card0/device/power_profile

Add that line to execute on boot, and the problem is solved…

Source: http://www.x.org/wiki/RadeonFeature

Fixing slow Unity 3D in Ubuntu 11.04

I tried Unity the day Ubuntu 11.04 was launched on my Lenovo edge 13 packing a 1.3GHz Athlon Neo. I upgraded from Ubuntu 10.10 and the result was really bad. Suddenly desktop became slow and laggy, parts of the interface would constantly get corrupted, so a Fedora installation was called upon to purge the crappy new Ubuntu. A month later, I upgraded my desktop Ubuntu hoping I wouldn’t have to replace it with some other distribution, and as it turns out, it’s usable now. It can still be slow on Radeon hardware and after a little amount of googling these things came up:

  • From CCSM composite: disable Detect Refresh Rate
  • From CCSM OpenGL: disable Sync to Vblanc and set texture filter to fast
  • From Catalyst Control Center in display options disable Tear Free

Immediately after tweaking these settings, performance should be boosted noticeably.