[Bug 61610] New: [G33 SNA] Regression: pixmap corruption in WindowMaker and Firefox

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=61610

          Priority: medium
            Bug ID: 61610
          Assignee: chris at chris-wilson.co.uk
           Summary: [G33 SNA] Regression: pixmap corruption in WindowMaker
                    and Firefox
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
          Severity: normal
    Classification: Unclassified
                OS: Linux (All)
          Reporter: ccr at tnsp.org
          Hardware: x86 (IA32)
            Status: NEW
           Version: unspecified
         Component: Driver/intel
           Product: xorg

At some point, there seems to have been a regression. Most visibly, when
changing virtual desktops in WindowMaker, the fadeout-animated notification
text ("Workspace #") is occasionally rendered as a corrupted mess. This does
not happen all the time, however.

Additionally, sometimes, albeit extremely rarely, images in Firefox (version
20.0 beta) are now corrupted. Both of these issues seem to be very similar to
what I have experienced and reported in past, just reintroduced again.

The pixmap corruptions in Firefox are semi-persistent, but may disappear after
switching focus in and out a few times (probably triggering a re-render of the
page) or scrolling.

I will try to bisect this issue later, if it does not turn out to be something
blatantly obvious.

-- Window manager: WindowMaker 0.95.3
-- chipset: 00:02.0 VGA compatible controller: Intel Corporation 82G33/G31
Express Integrated Graphics Controller (rev 10)
-- system architecture: i686 / 32bit
-- xf86-video-intel: GIT a0a2faefdefbea63669dfeb49f7e701196ab5631
-- xserver: X.Org X Server 1.12.4 from Debian testing
-- mesa: 8.0.5-3 from Debian testing
-- libpixman: 0.26.0
-- libdrm version: 2.4.40-1
-- kernel version: 3.8.0 (vanilla from kernel.org)
-- Linux distribution: Debian Testing aka Wheezy
-- Machine or mobo model: Asus P5KPL-CM
-- Display connector: VGA

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