Correctly configuring dual head

Dave Airlie airlied at
Thu Jul 3 03:22:40 PDT 2008

On Thu, Jul 3, 2008 at 7:29 PM, Christoph Bartoschek
<bartoschek at> wrote:
> Am Mittwoch, 2. Juli 2008 schrieb Alex Deucher:
>> > I've installedd 6.9.0 and it seems as if I can resolve my DPI problems.
>> > Unfortunately the rotated display is unbearable slow. One can see the
>> > scanline when parts of the desktop are updated. Is there a trick to get
>> > the rotated display fast?
>> Switch to EXA:
>> Option "AccelMethod" "EXA"
> Thanks. Now the rotated display is ok.
> However there are two problems:
> 1. If I enter Option "Rotate" "Left" to my monitor section, the driver crashes
> on startup. Is this known?

It is now, I've pushed the fix to master.

> 2. It seems as if the GPU fan is now running all the time. Is it possible that
> the rotated mode is more gpu intensive such that more power is transformed to
> heat?

Yes, rotation runs the 3D engine in order to do the rotation, so it
would need more GPU power.


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