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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 --- - Gnome-Shell Navigation Error"
href="https://bugs.freedesktop.org/show_bug.cgi?id=77037">77037</a>
</td>
</tr>
<tr>
<th>Assignee</th>
<td>idr@freedesktop.org
</td>
</tr>
<tr>
<th>Summary</th>
<td>Gnome-Shell Navigation Error
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>intel-3d-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>Linux (All)
</td>
</tr>
<tr>
<th>Reporter</th>
<td>justin.brown@fandingo.org
</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>10.0
</td>
</tr>
<tr>
<th>Component</th>
<td>Drivers/DRI/i965
</td>
</tr>
<tr>
<th>Product</th>
<td>Mesa
</td>
</tr></table>
<p>
<div>
<pre>I've been experiencing this problem for nearly a year and haven't had any luck
resolving it. I know this sounds like a Gnome problem, but it only occurs when
using Intel graphics.
System:
This occurs exclusively on a HD Graphics 4600 (i7-4770) system. I have tried
everything from various single monitor configurations to my usual
triple-monitor configuration (1920x1080, 1920x1200, and 2560x1440) and even
tried various display connectors. There has not been a discernible difference
in the error rate between all of the configurations. Currently, the system has
512MiB of memory assigned to the GPU.
Problem:
When using HD Graphics 4600 (i7-4770) regardless of monitor configuration, I
constantly have the following problem in Gnome (3.8-3.12) on Fedora (versions
19 and 20). Every 5-10 minutes, I will lose the ability to click on any item
outside of the active window. The mouse cursor moves around fine, but I can't
interact with anything else. No overview mode, no ability to click to focus on
anything else. The keyboard and mouse continue to work in the active
application. Interestingly, I can alt+tab to another program, and use input
devices there.
Recovery:
If I switch from Gnome on VT1 to any other VT, even for a fraction of a second,
and back again then everything returns to normal 95% of the time. (Very rarely,
do I have to do it twice.)
Logs:
There aren't any useful log messages, but the following does appear when this
problem occurs.
[2149:2149:0225/193020:ERROR:browser_main_loop.cc(234)] Gdk:
IA__gdk_window_get_events: assertion 'GDK_IS_WINDOW (window)' failed
[2149:2149:0225/193020:ERROR:browser_main_loop.cc(234)] GLib-GObject:
g_object_ref: assertion 'G_IS_OBJECT (object)' failed
[2149:2149:0225/193020:ERROR:browser_main_loop.cc(234)] GLib-GObject:
g_object_unref: assertion 'G_IS_OBJECT (object)' failed
[2149:2149:0225/193022:ERROR:browser_main_loop.cc(234)] Gdk:
IA__gdk_window_get_events: assertion 'GDK_IS_WINDOW (window)' failed
[2149:2149:0225/193022:ERROR:browser_main_loop.cc(234)] GLib-GObject:
g_object_ref: assertion 'G_IS_OBJECT (object)' failed
[2149:2149:0225/193023:ERROR:browser_main_loop.cc(234)] GLib-GObject:
g_object_unref: assertion 'G_IS_OBJECT (object)' failed
[2149:2149:0225/193023:ERROR:browser_main_loop.cc(234)] Gdk:
IA__gdk_window_get_events: assertion 'GDK_IS_WINDOW (window)' failed
[2149:2149:0225/193023:ERROR:browser_main_loop.cc(234)] GLib-GObject:
g_object_ref: assertion 'G_IS_OBJECT (object)' failed
[2149:2149:0225/193023:ERROR:browser_main_loop.cc(234)] GLib-GObject:
g_object_unref: assertion 'G_IS_OBJECT (object)' failed
[2149:2149:0225/193023:ERROR:browser_main_loop.cc(234)] Gdk:
IA__gdk_window_get_events: assertion 'GDK_IS_WINDOW (window)' failed
[2149:2149:0225/193023:ERROR:browser_main_loop.cc(234)] GLib-GObject:
g_object_ref: assertion 'G_IS_OBJECT (object)' failed
[2149:2149:0225/193023:ERROR:browser_main_loop.cc(234)] GLib-GObject:
g_object_unref: assertion 'G_IS_OBJECT (object)' failed
Gjs-Message: JS LOG: pushModal: invocation of begin_modal failed
Upon the VT switch trick, there's no recovery messages.
Testing:
I use a variety of Intel HD Graphics systems and have never experienced this
problem. They include a laptop with 4400 (i7-4600U), 4000 (i7-3520M), and 3000
(i5-2500K). Fedora, somewhat mysteriously ships a rather old version of
xorg-x11-drv-intel (2.21.15). I added Intel's graphics repository
(<a href="https://download.01.org/gfx/fedora/20/">https://download.01.org/gfx/fedora/20/</a>) for Fedora, which includes (2.99.907),
but the problem still occurred at the same frequency.
I've temporary added a Nvidia 210 graphics card using the nouveau driver to
this system, and have not experienced the problem in over 6 hours of testing.
Conclusion:
I come away extremely confused. This is such a strange problem to have on one
specific GPU.
My gut tells me that it has to be something with Xorg since a switch to a VT
immediately fixes it. Unfortunately, Xorg doesn't log any messages when this
behavior occurs.
I'd like to submit more information if anyone can think of additional things to
test or debugging options to use.</pre>
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