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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 - DP MST: xrandr doesn't detect new outputs after docking laptop"
href="https://bugs.freedesktop.org/show_bug.cgi?id=86004">86004</a>
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<th>Summary</th>
<td>DP MST: xrandr doesn't detect new outputs after docking laptop
</td>
</tr>
<tr>
<th>Product</th>
<td>xorg
</td>
</tr>
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<th>Version</th>
<td>7.7 (2012.06)
</td>
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<th>Hardware</th>
<td>x86-64 (AMD64)
</td>
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<th>OS</th>
<td>All
</td>
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<th>Status</th>
<td>NEW
</td>
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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
</td>
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<th>Assignee</th>
<td>chris@chris-wilson.co.uk
</td>
</tr>
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<th>Reporter</th>
<td>dion@dion.org.ua
</td>
</tr>
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<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
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<div>
<pre>Laptop is booted and logged in while undocked. Then once it's docked, no new
outputs are added to xrandr:
Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 8192 x 8192
eDP1 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis)
309mm x 175mm
1920x1080 60.01*+ 59.93
1680x1050 59.95 59.88
1600x1024 60.17
1400x1050 59.98
1280x1024 60.02
1440x900 59.89
1280x960 60.00
1360x768 59.80 59.96
1152x864 60.00
1024x768 60.00
800x600 60.32 56.25
640x480 59.94
VGA1 disconnected (normal left inverted right x axis y axis)
DP1 disconnected (normal left inverted right x axis y axis)
HDMI1 disconnected (normal left inverted right x axis y axis)
DP2 disconnected (normal left inverted right x axis y axis)
HDMI2 disconnected (normal left inverted right x axis y axis)
Followed lines are added to Xorg.log once docked (I've one display attached to
dock's DVI port):
[ 3362.188] removing GPU device
/sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-DP-3 (null)
[ 3362.189] (II) intel(0): EDID vendor "LGD", prod id 1034
[ 3362.189] (II) intel(0): Printing DDC gathered Modelines:
[ 3362.190] (II) intel(0): Modeline "1920x1080"x0.0 140.10 1920 1980 2016
2092 1080 1083 1088 1116 +hsync -vsync (67.0 kHz eP)
[ 3362.220] removing GPU device
/sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-DP-4 (null)
[ 3362.221] (II) intel(0): EDID vendor "LGD", prod id 1034
[ 3362.221] (II) intel(0): Printing DDC gathered Modelines:
[ 3362.221] (II) intel(0): Modeline "1920x1080"x0.0 140.10 1920 1980 2016
2092 1080 1083 1088 1116 +hsync -vsync (67.0 kHz eP)
[ 3362.253] (II) intel(0): EDID vendor "LGD", prod id 1034
[ 3362.253] (II) intel(0): Printing DDC gathered Modelines:
[ 3362.253] (II) intel(0): Modeline "1920x1080"x0.0 140.10 1920 1980 2016
2092 1080 1083 1088 1116 +hsync -vsync (67.0 kHz eP)
[ 3362.284] removing GPU device
/sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-DP-5 (null)
[ 3362.285] (II) intel(0): EDID vendor "LGD", prod id 1034
[ 3362.285] (II) intel(0): Printing DDC gathered Modelines:
[ 3362.285] (II) intel(0): Modeline "1920x1080"x0.0 140.10 1920 1980 2016
2092 1080 1083 1088 1116 +hsync -vsync (67.0 kHz eP)
If x11 is started after docking, xrandr shows both displays.</pre>
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