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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>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Can't set interlaced resolution on TV connected to DP"
href="https://bugs.freedesktop.org/show_bug.cgi?id=93774">93774</a>
</td>
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<th>Summary</th>
<td>Can't set interlaced resolution on TV connected to DP
</td>
</tr>
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<th>Product</th>
<td>DRI
</td>
</tr>
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<th>Version</th>
<td>DRI git
</td>
</tr>
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<th>Hardware</th>
<td>x86-64 (AMD64)
</td>
</tr>
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<th>OS</th>
<td>Linux (All)
</td>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Severity</th>
<td>major
</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>macieksitarz@wp.pl
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>CC</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=121134" name="attach_121134" title="xrandr --verbose">attachment 121134</a> <a href="attachment.cgi?id=121134&action=edit" title="xrandr --verbose">[details]</a></span>
xrandr --verbose
Description:
I can't set the proper resolution on my TV connected via DisplayPort. The TV
needs 1920x1080i. After setting "1920x1080i" mode I get "No signal" on the TV,
with "1920x1080" the X shows on TV (I don't want to use it as I get random red
lines on the screen).
The problem appears since some time now, probably after some kernel updated.
When I use kernel 4.1.15 (linux-lts) it works fine.
Steps to reproduce the issue:
1. Connect the TV via DP (DP to DVI to HDMI adapter to be exact)
2. Set the mode with xrandr:
xrandr --output LVDS1 --primary --auto --output HDMI1 --above LVDS1 --mode
1920x1080i
3. The TV screen shows "No signal"
How often does the steps listed above trigger the issue?
always
The following information about your system:
System environment:
-- chipset: i915
-- system architecture: Linux mcxT 4.4.0-1-drm-intel-nightly #1 SMP PREEMPT Sun
Jan 17 16:53:12 CET 2016 x86_64 GNU/Linux
-- xf86-video-intel: 1:2.99.917+519+g8229390-1
-- xserver: xorg-server 1.18.0-4
-- mesa: 11.1.1-1
-- libdrm: 2.4.66-1
-- kernel version: 4.4.0-1-drm-intel-nightly
-- Linux distribution: Arch Linux
-- Machine or mother board model: Lenovo T410
-- Display connector: DP (DP to DVI adapter, then DVI to HDMI adapter, then
HDMI cable plugged to TV)
Additional info:</pre>
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</p>
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