matrox g400 with compiz on linux

This forum is for questions about all G-series cards (G200, G400, G450, ...) that need the mga driver to work properly

matrox g400 with compiz on linux

Postby measwel » Thu Oct 01, 2009 4:19 pm

Dear friends,

I am trying to run compiz on a matrox g400 in linux 8.04 lts. When I disable checks, compiz does run, but the max resolution is then 1024. My monitor is 1280 horizontal. When I run a script that checks for compiz compatibility, I see the warning that the matrox supports only 1024 texture size, while compiz needs more. Then there is the suggestion to disable dual heads.

My question is:

1) How can I disable dual heads on the matrox g400 under linux? I tried using matroxset, but I get the errror: Cannot open dev/fb1 no such file ...
2) Will this increase maximum texture size beyond 1024 ?
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