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<base href="https://bugs.freedesktop.org/" />
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<body><table border="1" cellspacing="0" cellpadding="8">
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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 --- - KDE thinks the monitor is reconnected each time it resumes"
href="https://bugs.freedesktop.org/show_bug.cgi?id=62671">62671</a>
</td>
</tr>
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<th>Assignee</th>
<td>dri-devel@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Summary</th>
<td>KDE thinks the monitor is reconnected each time it resumes
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux (All)
</td>
</tr>
<tr>
<th>Reporter</th>
<td>chealer@gmail.com
</td>
</tr>
<tr>
<th>Hardware</th>
<td>x86 (IA32)
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Version</th>
<td>XOrg CVS
</td>
</tr>
<tr>
<th>Component</th>
<td>DRM/Radeon
</td>
</tr>
<tr>
<th>Product</th>
<td>DRI
</td>
</tr></table>
<p>
<div>
<pre>I experienced a regression after upgrading Linux from Debian's 3.2.35-2 to its
3.2.39-2. As Ben Hutchings explained to me, that is because some Linux 3.3/3.4
graphics changes were backported in Debian's 3.2.39. And indeed, if I try 3.4.4
or 3.8.3, the regression remains.
I have only experienced the problem on KDE, but I didn't try other
environments. My laptop has a Radeon HD 5650 card connected to an LCD screen
via HDMI. When I leave the laptop idle and come back after a while, the screen
resumes. What changed is that I now get 2 KDE dialogs telling me:
A monitor output has been disconnected.
Do you wish to run a configuration tool to adjust the monitor setup?
immediately followed by
A monitor output has been connected.
Do you wish to run a configuration tool to adjust the monitor setup?
(The latter shows on top) Obviously, this is incorrect. I simply press Escape
twice and the problem disappears until the next time I leave the PC. This is
just an annoyance.
I ran tail --follow on .xsession-errors to debug and found as only clue the
message "main input error: ES_OUT_RESET_PCR called" logged twice. For example,
after a monitor resume, the following had been logged:
[0x85fc680] main input error: ES_OUT_RESET_PCR called
[0xf1b0a9b8] main input error: ES_OUT_RESET_PCR called
I noticed that this error is logged every time the system detects a monitor
(dis)connection, real or spurious (On my good Linux version, a resume doesn't
trigger that error). Oddly enough, I searched the web quite a bit, asked
#debian-kde and #kde and found no one with the same problem. The
ES_OUT_RESET_PCR error is common, but in very different contexts. This does not
happen when using the vesa driver, nor when modeset is disabled, nor when I
plug the screen via VGA (the laptop has no DVI plug to test). There are no
hints in system logs.
The KDE prompts above are the standard prompts shown when a (dis)connection is
detected. Debian testing's KDE version is not the latest (4.8.4).</pre>
</div>
</p>
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