<html>
<head>
<base href="https://bugs.freedesktop.org/">
</head>
<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - AMD R9 Fury + BenQ XL2546: Setting 240 Hz results in screen distortion"
href="https://bugs.freedesktop.org/show_bug.cgi?id=104655">104655</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>AMD R9 Fury + BenQ XL2546: Setting 240 Hz results in screen distortion
</td>
</tr>
<tr>
<th>Product</th>
<td>Mesa
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Hardware</th>
<td>x86-64 (AMD64)
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux (All)
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>medium
</td>
</tr>
<tr>
<th>Component</th>
<td>Other
</td>
</tr>
<tr>
<th>Assignee</th>
<td>mesa-dev@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>ominous@autistici.org
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>mesa-dev@lists.freedesktop.org
</td>
</tr></table>
<p>
<div>
<pre>I recently obtained this monitor and running it on Debian via an AMD R9 Fury.
When I try to set the monitor at 1920 x 1080 @ 240 Hz it will show distortion
on the right side of the screen, and the screen reports to be running at 1920 x
1080 @ 241 Hz via the Information section of the monitor's OSD.
This does not happen on Windows. I have tested this on Debian stable, Debian
testing and Ubuntu 17.10, with all expressing the same result.
The value is 239.76, yet when I switch to it, the monitor will report 241 Hz,
which most likely causes the screen distortion.
user@fdt:~$ xrandr
Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 16384 x 16384
DisplayPort-0 connected primary 1920x1080+0+0 (normal left inverted right x
axis y axis) 544mm x 303mm
1920x1080 60.00 + 239.76 143.98* 119.98 99.93 50.00 59.94
1920x1080i 60.00 50.00 59.94
1680x1050 59.95
1600x900 60.00
1280x1024 239.77 120.05 75.02 60.02
1280x800 59.81
1152x864 75.00
1280x720 60.00 50.00 59.94
1024x768 75.03 60.00
832x624 74.55
800x600 75.00 60.32
720x576 50.00
720x480 60.00 59.94
640x480 75.00 60.00 59.94
720x400 70.08
DisplayPort-1 disconnected (normal left inverted right x axis y axis)
DisplayPort-2 disconnected (normal left inverted right x axis y axis)
HDMI-A-0 disconnected (normal left inverted right x axis y axis)
DVI-D-0 disconnected (normal left inverted right x axis y axis)</pre>
</div>
</p>
<hr>
<span>You are receiving this mail because:</span>
<ul>
<li>You are the assignee for the bug.</li>
<li>You are the QA Contact for the bug.</li>
</ul>
</body>
</html>