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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 --- - Error using xrandr to change screen configuration/positions"
href="https://bugs.freedesktop.org/show_bug.cgi?id=70295">70295</a>
</td>
</tr>
<tr>
<th>Assignee</th>
<td>chris@chris-wilson.co.uk
</td>
</tr>
<tr>
<th>Summary</th>
<td>Error using xrandr to change screen configuration/positions
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</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>imirkin@alum.mit.edu
</td>
</tr>
<tr>
<th>Hardware</th>
<td>Other
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Component</th>
<td>Driver/intel
</td>
</tr>
<tr>
<th>Product</th>
<td>xorg
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=87303" name="attach_87303" title="xorg log">attachment 87303</a> <a href="attachment.cgi?id=87303&action=edit" title="xorg log">[details]</a></span>
xorg log
This configuration was working fine on xorg 1.13/xf86-video-intel 2.99.901, but
broke when I upgraded to 1.14.3/2.99.903. If you believe it'd be helpful, I
could easily test other versions of xf86-video-intel, but switching back to
xorg 1.13 may prove tricky.
The issue is that when I start X, I have both LVDS1 and HDMI1 screens mirrored
(as expected). xrandr reports the following:
$ xrandr -q
Screen 0: minimum 320 x 200, current 1920 x 1200, maximum 32767 x 32767
LVDS1 connected 1600x900+0+0 (normal left inverted right x axis y axis) 310mm x
174mm
1600x900 60.0 +
1024x768 60.0
800x600 60.3 56.2
640x480 59.9
VGA1 disconnected (normal left inverted right x axis y axis)
HDMI1 connected 1920x1200+0+0 (normal left inverted right x axis y axis) 519mm
x 324mm
1920x1200 60.0*+
1920x1080 60.0
...
Note that there's no * next to the 1600x900 mode on LVDS1. (It is, however,
displaying everything just fine.)
When I then try to run
xrandr --output HDMI1 --above LVDS1
it fails with a BadMatch (or BadValue) error (don't have the exact error handy,
can provide if necessary). Running xrandr --output LVDS1 --auto restores the *
next to the 1600x900 mode, and allows a subsequent --above command to work as
well.
Attached is my Xorg log. Note the following odd lines on init:
[701508.168] (--) intel(0): Output LVDS1 using initial mode on pipe 0
[701508.168] (--) intel(0): Output HDMI1 using initial mode 1920x1200 on pipe 1
...
[701508.178] (II) intel(0): switch to mode <a href="mailto:1600x900@60.0">1600x900@60.0</a> on pipe 0 using LVDS1,
position (0, 0), rotation normal
[701508.199] (II) intel(0): switch to mode <a href="mailto:1920x1200@60.0">1920x1200@60.0</a> on pipe 1 using
HDMI1,
position (0, 0), rotation normal
I have an essentially empty xorg.conf (nothing specific to intel
display/monitors).</pre>
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