Bug#389007: [Xorg-driver-ati] Bug#389007: Regression: Radeon 9200
powers off Apple Cinema Display connected via DVI
benh at kernel.crashing.org
Tue Oct 24 15:35:50 PDT 2006
> I found a solution to the problem. Adding
> Option "PanelSize" "1680x1050"
> Option "MonitorLayout" "TMDS,NONE"
> made the display work correctly. IIRC this was needed with XOrg 6.9,
> but wasn't needed with 7.0 (because it was intelligent enough to
> autodetect correctly?). This seems to be a regression in 7.1.
> Both the PanelSize and MonitorLayout need to be exactly as above. If
> either is commented out, or I change MonitorLayout to just "TMDS", the
> monitor powers off.
> Just in case it's affecting anything, I'm adding
> append="video=radeonfb:1680x1050-32 at 60"
> in my yaboot.conf in order to get a fullscreen framebuffer.
radeonfb shouldn't need that ...
What if, instead, you use Option "ReverseDDC" "true" btw ? Same
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