Actually since "upgrading" to kernel 2.6.28-13.45 on Ubuntu 9.04 I'm starting to observe graphic corruption in 2d desktop (compiz/beryl off). MSI GT725-074US 4850 mobility radeon. x86-64
This time around it's rectangular areas of the screen where the background turns black, and is clearable by switching virtual desktops or otherwise forcing a screen refresh.
Also observed a very small line of 5-10 pixels(horizontal) corruption that appeared while using firefox.
NOTE: I did NOT bother to rebuild/install catalyst 9.6 with the upgrade as it was a minor change, and have not yet installed the latest minor kernel update.
Initially I thought that it might be heat related problems, but the GPU was reporting temps of c. 50C when I first noticed the problem. Also I have not observed this problem under Vista, but there I have a relatively ancient catalyst (8.12) as I can't be bothered to experiment with the dontargue method of overriding idiotic vendor lockins. (Thanks AMD! I REALLY appreciate that!) (Also have to find where I put my Vista backup disks... just in case the dontargue method goes horribly wrong, and maybe time for the MSI mystery BIOS update too...)
Oh yeah, still experiencing random hard locks when playing back video. Seems to occur most commonly AFTER waking from sleep, reqing ALT-PRTSCR+RSEINUB. (This NEVER comes back, as I've left it frozen for up to 15m to see if it was similar to another problem that Ive read about with older ATI card IIRC, where video would freeze for 30s or so then resume "normal" operation.)
Last edited by cutterjohn; 07-02-2009 at 10:11 AM.
Intel Core 2 Duo P8600, 4GB DDR2-800, 320GB 7200RPM WDC WD3200BEKT-22F3T0, ATI Mobility Radeon HD 4850 512MB GDDR3, 8x Super multi DVD+/-RW, 1680x1050 (17"), 9 cell battery
Ubuntu 8.10 x86-64 (current updates) catalyst 9.3
Windows Vista Home Premium 32b SP1 (current update) still on shipped catalyst(8.12 I think, MSI packed -- lazy)