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Date: Thu, 27 Mar 2014 16:49:05 +0200
From: Aleksandr Rybalko <ray@freebsd.org>
To: Adrian Chadd <adrian@freebsd.org>
Subject: Re: (more) screen distortion with intel GPU / xorg on recent -HEAD?
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On Sun, 23 Mar 2014 13:36:29 -0700
Adrian Chadd <adrian@freebsd.org> wrote:

> Less information-poor response:
> 
> * when it happens, the FB will resume correctly for a little bit, then
> once everything comes back, it flips to being distorted. So, it's
> likely something is misconfiguring stuff during resume.
> * I can flip to VTs fine; I can login and do things fine;
> * When I flip back to xorg, things still remain distorted;
> * If I ctrl-C xorg and start it again, it starts back up correctly.
> 
> So hm, maybe the vt save/resume code learnt something buggy?
> 

No, vt(9) and syscons have nothing to do with FB used by Xorg. With new
DRM Xorg allocate own FB and only Xorg and DRM know about it.
It seems Xorg's PM events handling is works wrong.
Or maybe drm2 should care better about that FB objects.


> 
> -a
> 
> 
> On 23 March 2014 01:27, Adrian Chadd <adrian@freebsd.org> wrote:
> > Hi,
> >
> > I know this is an information-poor message.
> >
> > The last time i updated my two test laptops was around the middle of
> > last month. Back then, xorg would occasionally get distorted, but
> > typically would come back from suspend fine.
> >
> > Lately, it seems a 50% chance that coming back from suspend that xorg
> > will be not only distorted, but further screen redraws are wrong. It's
> > like the framebuffer configuration is wrong and persists to be wrong.
> > I have to exit out of xorg and restart it.
> >
> > Has anyone else seen this?
> >
> >
> > -a


-- 
Aleksandr Rybalko <ray@freebsd.org>