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Bug#614296: xserver-xorg-video-intel: rendering corruptions, e. g. when browsing or with »2« and »4« in LXTerminal



Dear Axel,


thank you for your reply. I am putting Samuel back to CC and hope that
it is fine with him to updated about our findings.


Am Mittwoch, den 25.07.2012, 15:12 +0200 schrieb Axel Beckert:

> Paul Menzel wrote:
> > First the work around. Using the SNA backend(?) of the Intel DDX
> > (`xserver-xorg-video-intel`) as suggested by Chris Wilson on #intel-gfx
> > by creating `/etc/X11/xorg.conf.d/99-local.conf` with the following
> > content
> > 
> >     Section "Device"
> >         Identifier "Device0"
> >         Driver "intel"
> >         Option "AccelMethod" "sna"
> >     EndSection
> > 
> > the rendering corruptions do not occur anymore on my Eee PC 701 4G. Only
> > once I saw some kind of smearing(?) – letters not rendered sharply but
> > blurry – 
> 
> This had a totally unexpected side effect on my EeePC 701 4G: The
> until then black tinted urxvt suddenly was tinted blue. No idea why.
> 
> My *rxvt X resource settings:
> 
> Rxvt*tintColor:     black
> Rxvt*shading:       50
> Rxvt*reverseVideo:  True
> Rxvt*inheritPixmap: True
> Rxvt*fading:        0

On #intel-gfx Chris Wilson told me that this has been fixed already and
should work in 2.20.1. Although he did not tell me what commit since
there have been more than hundreds of them in between.

> No font corruption so far yet, but I wouldn't bet on it yet. Will give
> feedback after having it used a few days.

Maybe also try enabling the `DebugWait` option. This worked for me so
far and is using the „old“ UXA backend. Although Chris Wilson noted that
x11perf might suffer when using this option.

Talking to Julian Cristau, one of the release managers, he told me that
he does not consider this bug release critical and that if no fix is
found Debian Wheezy will be released with this bug.

Chris Wilson also noted that he tried to figure out the cause of this
error for quite some time and did not find the reason for it.

But let us hope for the best and be optimistic. 

> > Samual and Axel, maybe you can subscribe to the freedesktop.org Bugzilla
> > ticket #36326.
> 
> *sigh* I hate Bugzilla.

Me too. I am still wondering if everyone uses the Web interface or if
there are also some command line tools making it more bearable.

> I subscribed to the Launchpad bug report. That one seems to copy all
> messages from the Bugzilla bug report.

Understood. That should work.


Thanks,

Paul


PS: Axel, one unrelated question, what way did you use to reply to
Samuel’s original report. `bts show --mbox 675734`, using the provided
links to the mbox file on the bug report Web page with your browser or
some other magic I do not know about?

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