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<body><span class="vcard"><a class="email" href="mailto:kenneth@whitecape.org" title="Kenneth Graunke <kenneth@whitecape.org>"> <span class="fn">Kenneth Graunke</span></a>
</span> changed
<a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED DUPLICATE - Mesa has to be downgraded to version 8 with KDE"
href="https://bugs.freedesktop.org/show_bug.cgi?id=77256">bug 77256</a>
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<table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>What</th>
<th>Removed</th>
<th>Added</th>
</tr>
<tr>
<td style="text-align:right;">Status</td>
<td>NEW
</td>
<td>RESOLVED
</td>
</tr>
<tr>
<td style="text-align:right;">Resolution</td>
<td>---
</td>
<td>DUPLICATE
</td>
</tr></table>
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<b><a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED DUPLICATE - Mesa has to be downgraded to version 8 with KDE"
href="https://bugs.freedesktop.org/show_bug.cgi?id=77256#c1">Comment # 1</a>
on <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED DUPLICATE - Mesa has to be downgraded to version 8 with KDE"
href="https://bugs.freedesktop.org/show_bug.cgi?id=77256">bug 77256</a>
from <span class="vcard"><a class="email" href="mailto:kenneth@whitecape.org" title="Kenneth Graunke <kenneth@whitecape.org>"> <span class="fn">Kenneth Graunke</span></a>
</span></b>
<pre>Thanks for the information! Having to downgrade all the way to Mesa 8 strongly
suggests multisampling is at fault.
Although we suspect multisampling is broken, KWin and Unity really don't want
to be using multisampling. The reason they're getting MSAA is due to a GLX bug
in the X server, which chooses random visuals/fbconfigs that sometimes have
really undesirable properties. This is fixed in X server 1.15.1 and 1.14.6.
As an alternative, you can try running KWin with EGL:
KWIN_OPENGL_INTERFACE=egl kwin --replace &
*** This bug has been marked as a duplicate of <a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [ivb/hsw] batch overwritten with garbage"
href="show_bug.cgi?id=77207">bug 77207</a> ***</pre>
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