<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 - [nouveau] garbled rending with glamor on G71"
href="https://bugs.freedesktop.org/show_bug.cgi?id=99400">99400</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>[nouveau] garbled rending with glamor on G71
</td>
</tr>
<tr>
<th>Product</th>
<td>Mesa
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Hardware</th>
<td>Other
</td>
</tr>
<tr>
<th>OS</th>
<td>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>Drivers/DRI/nouveau
</td>
</tr>
<tr>
<th>Assignee</th>
<td>nouveau@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>fourdan@xfce.org
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>nouveau@lists.freedesktop.org
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=128933" name="attach_128933" title="Screenshot of the issue">attachment 128933</a> <a href="attachment.cgi?id=128933&action=edit" title="Screenshot of the issue">[details]</a></span>
Screenshot of the issue
Description:
While investigating rendering bugs on Xwayland with nouveau specifically ([1]
and [2]) I realized that some gtk2 output (this Xwayland) is completely
garbled.
[1] <a href="https://bugzilla.redhat.com/show_bug.cgi?id=1411447">https://bugzilla.redhat.com/show_bug.cgi?id=1411447</a>
[2] <a href="https://bugzilla.gnome.org/show_bug.cgi?id=776255">https://bugzilla.gnome.org/show_bug.cgi?id=776255</a>
How reproducible:
Always
Steps to reproduce:
1. Log in a Wayland session (either Weston or GNOME shell) on a Dell M1710 with
a GeForce Go 7950 GTX
2. Run gtk-demo (the one from gtk2, i.e. not Wayland native but relying on
Xwayland)
3. Start the "Assistant" demo (second starting from the top)
Actual result:
The window is black with random content
Expected result:
The rendering is correct
Additional data:
This issue does not occur when using "shm" and CPU rendering instead of glamor
in Xwayland.
I am not aware of any other hardware where glamor produces such garbled output,
so I suspect an issue with nouveau, but if you reckon it's an issue with glamor
instead, please flip this bug back to xserver/glamor
I have seen other issue with black icons being reported with glamor and nouveau
as well and these do not occur when using the CPU render in weston for example
(<a href="https://bugzilla.redhat.com/show_bug.cgi?id=1411447#c12">https://bugzilla.redhat.com/show_bug.cgi?id=1411447#c12</a>)
In my case, hardware is VGA compatible controller: NVIDIA Corporation G71M
[GeForce Go 7950 GTX] (rev a1) (prog-if 00 [VGA controller])
01:00.0 0300: 10de:0297 (rev a1) (prog-if 00 [VGA controller])
Subsystem: 1028:019b</pre>
</div>
</p>
<hr>
<span>You are receiving this mail because:</span>
<ul>
<li>You are the QA Contact for the bug.</li>
<li>You are the assignee for the bug.</li>
</ul>
</body>
</html>