After update to precise there is no 3D acceleration for GeForce 6150

[mbrudka]

After upgrade to Precise I have lost 3D acceleration for my onboard NVIDIA GeForce 6150. glxinfo reports hardware acceleration, but glxgears has frame rates c.a 5 per sec. This bug is releated with nvidia 290.40 drivers.

[mbrudka (mbrudka)]

Some additional information:
  3.2.0-24-generic #37-Ubuntu SMP Wed Apr 25 08:43:22 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux
 00:05.0 VGA compatible controller: NVIDIA Corporation C51PV [GeForce 6150] (rev a2)

[mbrudka (mbrudka)]

Quick fix:

 - remove nvidia drivers
   sudo apt-get purge nvidia* # warning: some additional packages may be purged..

 - download and install nvidia 290.33 driver from nvidia site:
      http://us.download.nvidia.com/XFree86/Linux-x86_64/295.33/NVIDIA-Linux-x86_64-295.33.run

[mbrudka (mbrudka)]

Unfortunatelly, the fix above works until the next reboot only. The purge of nvidia drivers triggers nouveau installation, and in particular rebuild of initramfs. This prevents loading of the original nvidia module.

[mbrudka (mbrudka)]

Another clues:
 - installation of nvidia-current 295.33 (https://launchpadlibrarian.net/98943873/nvidia-current_295.33-0ubuntu1_amd64.deb) is successfull, but the problem with no 3D acceleration remains.
 - booting time and kdm start from rc when nvidia driver in use is very slow compared to nouveau.