ubuntu-x-swat team mailing list archive

[Bryce Harrington <717114@xxxxxxxxxxxxxxxxxx>]

no prob, thanks for the extra data.

So, at this stage, assuming that apw, stefano, kees, and eric are all
seeing roughly the same bug, taking all their observations into account,
the picture starts to look like this:

It appears there was a regression introduced with the introduction of
the 2.6.38-1 kernel (going by Stefano's timing, and kees' test of 2.6.38
where the issue can't be seen).  The issue is irregular but affects text
rendering by interlacing pixels from text elsewhere in the given text
buffer when doing rapid scrolling of large quantities of text.  This
most often shows itself in terminal windows but can also be seen
sometimes in firefox's rendered text.  The issue seems to appear more
often with compiz but has been seen in metacity.  Only a minority of
users seem to be reproducing the behavior, suggesting these users have
some sort of hardware or configurational aspect in common, but so far
the commonality between the users is not known.

How does that sound to you guys?  Did I miss anything or are there any
holes you can poke in it?  If not I think next step is to take the bug
upstream.

I'd really like to hear from each person able to reproduce this if
indeed booting 2.6.37 makes the issue go away, since that means a git
bisection might be doable to isolate the faulty patch.

** Changed in: xserver-xorg-video-intel (Ubuntu)
       Status: Confirmed => Incomplete

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https://bugs.launchpad.net/bugs/717114

Title:
  [i945gm] Screen Corruption with new Xorg stack with terminal programs