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
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