Re: [bisected] offset display bug in i915

[Jon Masters]

On Mon, 2010-11-08 at 10:27 +0000, Chris Wilson wrote:
> On Mon, 08 Nov 2010 05:18:32 -0500, Jon Masters <jonathan@xxxxxxxxxxxxxx> 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.

Already onto it. It's 6am here so I'll sleep soon ;) but I just applied
the following patch and booted it/logged into X without the problem
(apologies if evolution corrupts it, I usually send patches with mutt):