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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Font and screen corruption in GTK+ applications"
href="https://bugs.freedesktop.org/show_bug.cgi?id=88584">88584</a>
</td>
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<th>Summary</th>
<td>Font and screen corruption in GTK+ applications
</td>
</tr>
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<th>Product</th>
<td>xorg
</td>
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<th>Version</th>
<td>7.6 (2010.12)
</td>
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<th>Hardware</th>
<td>x86-64 (AMD64)
</td>
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<th>OS</th>
<td>Linux (All)
</td>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Severity</th>
<td>major
</td>
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<th>Priority</th>
<td>medium
</td>
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<th>Component</th>
<td>Driver/intel
</td>
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<th>Assignee</th>
<td>chris@chris-wilson.co.uk
</td>
</tr>
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<th>Reporter</th>
<td>psychonaut@nothingisreal.com
</td>
</tr>
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<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
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<pre>After running my system for some time (several hours or days), certain text
characters in GTK+ applications become blank or garbled. This renders these
applications completely unusable until I restart. (See the attached
screenshots.) Qt applications are unaffected.
I'm not sure if this is related, but in addition to the font corruption,
sometimes I get black boxes or black streaking over non-text elements of GTK+
applications.
It's not clear to me what the cause of the problem is. There's a Debian bug
report at <<a href="https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=760435">https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=760435</a>> which
suggests that the problem is in libglib. However, there are also several
freedesktop.org bug reports for the Intel video driver which describe similar
symptoms. In particular, my font corruption looks just like <span class=""><a href="attachment.cgi?id=35720" name="attach_35720" title="screenshot of glyph corruption in Eclipse">Attachment 35720</a> <a href="attachment.cgi?id=35720&action=edit" title="screenshot of glyph corruption in Eclipse">[details]</a></span>
of <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - font corruption and incorrectly drawn rectangular areas"
href="show_bug.cgi?id=28151">Bug 28151</a> and <span class=""><a href="attachment.cgi?id=37173" name="attach_37173" title="Defect in font rendering, damaged "a".">Attachment 37173</a> <a href="attachment.cgi?id=37173&action=edit" title="Defect in font rendering, damaged "a".">[details]</a></span> of <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - [945GM] intel driver intermittent hangs on 2D desktop, with XAA/EXA/UXA"
href="show_bug.cgi?id=20560">Bug 20560</a>. I think it's more likely a
problem with the Intel driver than with libglib, since I didn't notice any
problems after my last update to libglib (from 2.38.2 to 2.42.0 on 3 December
2014) but I did start enountering this problem after migrating my OS from a
system with an Nvidia card to one with a Core Processor Integrated Graphics
Controller.
I am running KDE 4.14.3 on openSUSE 13.2 for x86-64. I am using xorg 7.6 and
version 2.99.916 of the i915 driver. My graphics card is a Elsewhere on the
web this problem has been reported on ArchLinux and Kubuntu:
<<a href="https://bbs.archlinux.org/viewtopic.php?id=186783">https://bbs.archlinux.org/viewtopic.php?id=186783</a>> I have reported the
problem downstream on the openSUSE bug tracker:
<<a href="https://bugzilla.novell.com/show_bug.cgi?id=913425">https://bugzilla.novell.com/show_bug.cgi?id=913425</a>></pre>
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