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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 - 24Hz (&23.976Hz) modes broken with recent drivers"
href="https://bugs.freedesktop.org/show_bug.cgi?id=87112">87112</a>
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<th>Summary</th>
<td>24Hz (&23.976Hz) modes broken with recent drivers
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<th>Product</th>
<td>xorg
</td>
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<th>Version</th>
<td>7.7 (2012.06)
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<th>Hardware</th>
<td>Other
</td>
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<th>OS</th>
<td>All
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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
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<th>Component</th>
<td>Driver/intel
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<th>Assignee</th>
<td>chris@chris-wilson.co.uk
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<th>Reporter</th>
<td>martin.x.andersen@gmail.com
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<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
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<pre>Created <span class=""><a href="attachment.cgi?id=110582" name="attach_110582" title="xrandr -q with custom (pre-tested) modelines, working perfectly on 13.04">attachment 110582</a> <a href="attachment.cgi?id=110582&action=edit" title="xrandr -q with custom (pre-tested) modelines, working perfectly on 13.04">[details]</a></span>
xrandr -q with custom (pre-tested) modelines, working perfectly on 13.04
24.000Hz/23.976Hz refreshrates are broken with recent drivers when running in
dual-head (and also single-head last time I tested)
Correct modes are displayed by xrandr when using custom modelines, but any
attempt to switch to the mode (which is known to be working) results in a 60Hz
output.
This has been verified with recent (14.04) drivers (incl. newest 01.org
versions) on Haswell and Ivy Bridge setups.
Running 'xrandr --output HDMI2 --mode <a href="mailto:1920x1080@23.97610">1920x1080@23.97610</a>' with the older,
working drivers works as expected (see version information below)
Version information for broken behaviour:
- i965-va-driver:amd64 1.4.0-0intel1
- libdrm-intel1:amd64 2.4.56-1
- libva1:amd64 1.4.0-0intel1
- xserver-xorg 1:7.7+1ubuntu8
- xserver-xorg-video-intel 2:2.99.911-0intel1
- libgl1-mesa-dri:amd64 10.3.0-0ubuntu2intel1
Version information for correct behaviour:
- i965-va-driver 1.2.1-1
- libdrm2 2.4.46
- libva1 1.2.1-1
- xserver-xorg-core 1.13.3
- xserver-xorg-video-intel 2.21.9
- libgl1-mesa-dri:amd64 9.1.7</pre>
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