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<base href="https://bugs.freedesktop.org/" />
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<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Priority</th>
<td>medium
</td>
</tr>
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [HSW regression] No QHD selectable for HDMI in 3.11rc1"
href="https://bugs.freedesktop.org/show_bug.cgi?id=67048">67048</a>
</td>
</tr>
<tr>
<th>Assignee</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Summary</th>
<td>[HSW regression] No QHD selectable for HDMI in 3.11rc1
</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>All
</td>
</tr>
<tr>
<th>Reporter</th>
<td>andreas.reis@gmail.com
</td>
</tr>
<tr>
<th>Hardware</th>
<td>x86-64 (AMD64)
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Version</th>
<td>XOrg CVS
</td>
</tr>
<tr>
<th>Component</th>
<td>DRM/Intel
</td>
</tr>
<tr>
<th>Product</th>
<td>DRI
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=82608" name="attach_82608" title="Xorg.0.log">attachment 82608</a> <a href="attachment.cgi?id=82608&action=edit" title="Xorg.0.log">[details]</a></span>
Xorg.0.log
Bug description:
Both kernel 3.9 and 3.10 (and Windows 8) allow my first monitor to be set to
its native QHD via HDMI.
With 3.11-rc1 and drm-intel (nightly at 1bc20142, "Merge remote-tracking […]")
setting to QHD fails and HD 1080 is the max:
[ 27.838] (II) intel(0): switch to mode 2560x1440 on pipe 0 using HDMI1
[ 28.056] (EE) intel(0): failed to set mode: Invalid argument
The display itself will refuse to display anything and only state "no signal"
while turning itself on and off.
System environment:
* Haswell 4770
* Z87 (Gigabyte G1.Sniper M5 with bios F6h)
* Arch Linux x65
* no dedicated graphics card
* CrossOver 2730MD-P LED (2560x1440) on HDMI1
* iiyama E2773HDS (1920x1080) on HDMI2
* Arch Linux x64
* xf86-video-intel: git 6c8b15d3 (sna: Wrap cpuid.h)
* xserver: git 74469895 (dix: allow a ConstantDeceleration between 0 and 1
(#66134))
* mesa: git 0d7f0874 (r600g: use WAIT_3D_IDLE before using CP DMA)
* libdrm: git c6d73cfe (libdrm: bump to 2.4.46)
Additional info:
While the QHD was never immediatelly selectable through xrandr, the Intel
driver always reports the necessary properties for manually adding the
modeline:
[ 27.092] (II) intel(0): Supported detailed timing:
[ 27.092] (II) intel(0): clock: 241.5 MHz Image Size: 597 x 336 mm
[ 27.092] (II) intel(0): h_active: 2560 h_sync: 2600 h_sync_end 2632
h_blank_end 2720 h_border: 0
[ 27.092] (II) intel(0): v_active: 1440 v_sync: 1443 v_sync_end 1448
v_blanking: 1481 v_border: 0
This was added as two lines for the HDMI1 Monitor section and one for the
Screen section in 10-screens.conf.
Can't dump the Video BIOS as that "echo 1 > […]" command only results in "file
already exists".</pre>
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