Comment 6 for bug 421842

I don't have enough memory (640M) to update Live CD to latest, but have now tried with alpha-5. There are reproducible screen problems with alpha-5 (e.g. hang after resizing a window), where everything seems fine in alpha-4. I have not seen the screen corruption in alpha-4 either, but attach an example from alpha-5.

* alpha-4 live CD - fine
* alpha-5 live CD - screen corruption and hangs (apparently doing something with dd and rsyslogd)
* current HD Karmic (with DRI off) - screen corruption
* current HD Karmic (with DRI on) - screen corruption and hangs

On the hard drive, in fact I had installed and uninstalled the fglrx driver earlier on, under Hardy, as an attempt to fix the lockups in bug 404331, but not since upgrading to intrepid. I followed instructions at https://wiki.ubuntu.com/X/Troubleshooting/FglrxInteferesWithRadeonDriver and there are no packages, but a few files related to fglrx. I tried both methods to reinstall with no effect on the 'tartan' corruption, and in fact went further in purging libgl1-mesa-glx libgl1-mesa-dri and xserver-xorg-core, and then reinstalling ubuntu-desktop. Anything other packages it might be worth purging? hald? BTW on that wiki page, I think

  sudo apt-get remove --purge fglrx*

should be

  sudo apt-get remove --purge 'fglrx*'