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<base href="https://bugs.freedesktop.org/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Missing RandR events on hotplug"
href="https://bugs.freedesktop.org/show_bug.cgi?id=91929">91929</a>
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<th>Summary</th>
<td>Missing RandR events on hotplug
</td>
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<th>Product</th>
<td>xorg
</td>
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<th>Version</th>
<td>git
</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>normal
</td>
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<th>Priority</th>
<td>medium
</td>
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<th>Component</th>
<td>Driver/intel
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<th>Assignee</th>
<td>chris@chris-wilson.co.uk
</td>
</tr>
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<th>Reporter</th>
<td>loic.yhuel@gmail.com
</td>
</tr>
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<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
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<p>
<div>
<pre>When investigating <a href="https://bugs.kde.org/show_bug.cgi?id=346455">https://bugs.kde.org/show_bug.cgi?id=346455</a>, I found I don't
get all XRandR events on hotplug until someones calls RRGetInfo (either
"randr", or XRRGetScreenResources in "xev -event randr"), or a VT switch.
By default when plugging the HDMI cable I only get :
- RRScreenChangeNotify
- XRROutputChangeNotifyEvent with RR_Disconnected
When using xev, or calling xrandr, I get :
- a second RRScreenChangeNotify
- XRROutputChangeNotifyEvent with RR_Connected
On unplug, it seems to be the same (not 100% reliable, sometimes the kernel
doesn't generate any uevent) : I get "dummy" events (RRScreenChangeNotify +
XRROutputChangeNotifyEvent with RR_Connected), and won't get the
RR_Disconnected until someones calls RRGetInfo.</pre>
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