[Intel-gfx] Modesetting bug on 945GSE (Atom N270) with Chris Wilson drm-intel-next kernel

[Chris Wilson]

On Fri, 19 Nov 2010 17:44:49 +0000, Simon Farnsworth <simon.farnsworth at onelan.co.uk> wrote:
> Hello,
> 
> I'm seeing an interesting bug on 945GSE, and I have absolutely no idea where 
> to start looking. I'm trying to deal with performance issues on this platform, 
> so I'm updating to master of as many bits as possible, to see if they're 
> better.

Do you use a lot of fences? If so the pipelined fencing may be of interest
and also the relaxed fencing rules for i945. It would be good to get
some feedback on those.
 
> drm-intel-next as of a17577c9 (not tried older versions yet) is consistently 
> rendering to the middle third or so of the screen only; this is happening in 
> X, as well as in inteldrmfb during boot.

Vertical or horizontal offset? Which outputs? Anything suspicious in
intel_reg_dumper?
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre