Bug#389007: [Xorg-driver-ati] Bug#389007: Regression: Radeon 9200
powers off Apple Cinema Display connected via DVI
rleigh at whinlatter.ukfsn.org
Thu Oct 26 11:25:49 PDT 2006
Benjamin Herrenschmidt <benh at kernel.crashing.org> writes:
>> 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
> symptoms ?
Yes, the display just powers off on startup (this is with PanelSize
and MonitorLayout commented out).
.''`. Roger Leigh
: :' : Debian GNU/Linux http://people.debian.org/~rleigh/
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