[Intel-gfx] [bisected] offset display bug in i915

[Chris Wilson]

On Mon, 08 Nov 2010 05:18:32 -0500, Jon Masters <jonathan at jonmasters.org> wrote:
> Hi Chris,
> 
> The following patch that you recently committed breaks my ASUS Eee PC
> 1015PEM by causing the display to be offset by about 1 inch (a few
> centimeters) when the mode is (re)set during boot. I previously posted
> both photographs and video of the problem in another "PROBLEM" thread.

[snip]

> I'll look at the patch. Either the EDID is *not* consistent (in which
> case, why are we not seeing other bugs like this?) or there is something
> specific to this system or panel used.

Interesting. Or even downright bizarre! Can you disable the caching
(hopefully the patch is still revertible) and save the EDID
(/sys/class/drm/card0-LVDS-1/edid) periodically? Might be simplest just to
dump the EDID every time we probe the LVDS if it has changed.
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre