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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - mesa/Glamor with glx-tls enabled is causing GPU to hang on VERDE"
href="https://bugs.freedesktop.org/show_bug.cgi?id=66515#c38">Comment # 38</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW --- - mesa/Glamor with glx-tls enabled is causing GPU to hang on VERDE"
href="https://bugs.freedesktop.org/show_bug.cgi?id=66515">bug 66515</a>
from <span class="vcard"><a class="email" href="mailto:michel@daenzer.net" title="Michel Dänzer <michel@daenzer.net>"> <span class="fn">Michel Dänzer</span></a>
</span></b>
<pre>(In reply to <a href="show_bug.cgi?id=66515#c34">comment #34</a>)
<span class="quote">> Anyway, I stopped lightdm, and started X manually with both [R600_DEBUG=nohyperz] set and
> not set. Without this env var, the nouveau driver crashes (after playing for
> a while with the combo box). With this env set, it stopped happening.</span >
Weird: AFAICT glamor doesn't use depth/stencil functionality at all. Also,
radeonsi only got HyperZ support last December, but you were talking about
these hangs long before then.
(In reply to <a href="show_bug.cgi?id=66515#c35">comment #35</a>)
<span class="quote">> Xorg.0.log for mesa 9.2.5-1.20131220.fc20 compiled without TLS</span >
As you can see, this prevents glamor from loading, which disables all hardware
acceleration in X. You can get the same effect with
Option "NoAccel"
in xorg.conf.</pre>
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