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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [REGRESS] [BISECT] [i915] Monitor resolution lost"
href="https://bugs.freedesktop.org/show_bug.cgi?id=97994">97994</a>
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<th>Summary</th>
<td>[REGRESS] [BISECT] [i915] Monitor resolution lost
</td>
</tr>
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<th>Product</th>
<td>DRI
</td>
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<th>Version</th>
<td>unspecified
</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>
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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>DRM/Intel
</td>
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<th>Assignee</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
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<th>Reporter</th>
<td>daniel.otero@outlook.com
</td>
</tr>
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<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
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<th>CC</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=126917" name="attach_126917" title="xrandr --verbose output on kernel 4.7">attachment 126917</a> <a href="attachment.cgi?id=126917&action=edit" title="xrandr --verbose output on kernel 4.7">[details]</a></span>
xrandr --verbose output on kernel 4.7
>From kernel version 4.7 onwards, I lost the monitor native resolution of
2560x1080, which was automatically detected without any X configuration.
I bisected the culprit commit, and the chosen one was:
commit 55d7f30ee1096474cb5bdbca46b60f23ce8b1f83
drm/i915: Determine DP++ type 1 DVI adaptor presence based on VBT
I don't know how to go any further by myself, but can follow almost any steps
you give me to help diagnose the issue.
Thank you.
My config is:
-- system architecture: x86_64
-- kernel version: 4.7.5
-- Linux distribution: Arch Linux
-- Machine or mother board model:
- Motherboard: Asus B75M-PLUS
- CPU: Intel(R) Core(TM) i5-3470S
- GPU: Intel® HD Graphics 2500 (integrated)
- Monitor: LG(R) Ultrawide 21:9 29UM67-P
-- Display connector: HDMI</pre>
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