On Fri, 2002-06-07 at 01:08, GK wrote: > Sorry to sound like a mope, but how do I disable hardware acceleration? > I don't need it AFAIK, and I'm willing to try anything! Into your XF86Config (check you log which file X uses) and Section "Device" add following options: Option "NoHal" #-> Disables HAL, Mga200 does not suppor it anyway Option "NoAccel" #-> Disables accelaration. > So the mga driver is the problen, then eh? Do not know. Disabling HW ac. solved _my_ screen corruption. But I wanted DRI and HW ac so I got the CVS tree, and it worked. If you installed the matrox own drivers from a binary package it kept the orginal drivers as "mga_old" or similar (by default in "/usr/X11/lib/modules/dri"). Restore them and (most) HW ac would be disabled. The trouble could also be from bad memory range, comment out (by adding a leading #) the "VideoRam" row, and let the driver figure out how much memory your card has. Some command to try (without quotes): "man mga" -> What options mga driver supports "cat /var/log/XFree86.0.log | grep file:" -> Which config file X uses "cat /var/log/XFree86.0.log | grep EE" -> What X failed to figure out "cat /var/log/XFree86.0.log | grep WW" -> Where X made a guess, but is not sure. Log file might be else where, mine is "/var/log/XFree86.0.log", and thats the standard place for it. Hope this helps. // Jarmo