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<base href="https://bugs.freedesktop.org/" />
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<th>Priority</th>
<td>medium
</td>
</tr>
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Intel driver SNA causes x11vnc to display black screen when running xbmc"
href="https://bugs.freedesktop.org/show_bug.cgi?id=69730">69730</a>
</td>
</tr>
<tr>
<th>Assignee</th>
<td>chris@chris-wilson.co.uk
</td>
</tr>
<tr>
<th>Summary</th>
<td>Intel driver SNA causes x11vnc to display black screen when running xbmc
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
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<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux (All)
</td>
</tr>
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<th>Reporter</th>
<td>da_audiophile@yahoo.com
</td>
</tr>
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<th>Hardware</th>
<td>x86-64 (AMD64)
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
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<th>Component</th>
<td>Driver/intel
</td>
</tr>
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<th>Product</th>
<td>xorg
</td>
</tr></table>
<p>
<div>
<pre>Connecting to a vncserver (x11vnc) running on a machine that uses the intel
drivers with onboard video using SNA acceleration (default these days) causes a
black screen to be displayed on the vncclient but only when xbmc is active.
Exiting xbmc restores the expected vnc behavior. Disabling sna in
/etc/X11/xorg.conf.d/20-intel.conf fixes the problem but causes poor video
performance. Note that I see nothing relevant in my Xorg logs to indicate
there is a problem.
Note that I can connect to other machines that do not use the intel drivers
(nvidia) and I get the expected results.
Linux distro: Arch linux x86_64
Example video hardware: Intel GMA X4500HD
Xorg version: 1.14.3
Drivers packages in use (official ARCH packages):
* intel-dri 9.2.0-2
* libva-intel-driver 1.2.0-1
* xf86-video-intel 2.21.15-1
Command used to start x11vnc on the target box:
/usr/bin/x11vnc -nap -wait 50 -passwd xxx -display :0 -forever -o
/var/log/x11vnc.log -bg
It does not matter if I use the -noxdamage switch; the result is the same.</pre>
</div>
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