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Message #20277
[Bug 421842] Re: screen corruption and segfaults with radeon m6 ly
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*'
** Attachment added: "sometimes corruption affects whole window, sometimes part"
http://launchpadlibrarian.net/31403765/Screenshot-livecd-alpha-5.png
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screen corruption and segfaults with radeon m6 ly
https://bugs.launchpad.net/bugs/421842
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References