Ubuntu
gnome-panel package

Gnome panel freezes when connecting projector

Bug #345345 reported by Toon Verwaest
2
Affects Status Importance Assigned to Milestone
GNOME Panel
New
Critical
gnome-panel (Ubuntu)
Triaged
Medium
Ubuntu Desktop Bugs

Bug Description

Binary package hint: gnome-panel

When I activate a projector with nvidia-settings which has lower resolution than my laptop screen, the gnome-panel freezes. The way to reactivate the panel seems to be moving it to the projector. When I move it back from there it keeps on working; until I deactivate the projector. At that point, depending where the panel comes from, it freezes again or not.

It doesn't crash so I can't give a more detailed report (or I don't know how to).

This is happening on 9.04 alpha 6, but as far as I remember it also happened on 8.10.

Revision history for this message
Pedro Villavicencio (pedro) wrote :

Thanks for your bug report. Please try to obtain a backtrace of the freeze http://wiki.ubuntu.com/DebuggingProgramCrash and attach the file to the bug report. This will greatly help us in tracking down your problem.

Changed in gnome-panel (Ubuntu):
assignee: nobody → desktop-bugs
importance: Undecided → Medium
status: New → Incomplete
Revision history for this message
Toon Verwaest (tverwaes) wrote :

How do I make sure that I run the program in gdb? In other words, how can I kill it temporarily without it automatically coming up before I can start it in gdb? xkill doesn't keep it dead long enough :)

Revision history for this message
Toon Verwaest (tverwaes) wrote :

Ok, stupid me, --replace obviously did the trick. Info in attachment.

Revision history for this message
Pedro Villavicencio (pedro) wrote :

there's no hang on the trace you attached, may you please try again? thanks you.

Revision history for this message
Toon Verwaest (tverwaes) wrote :

I get similar results. It is probably useful to specify (sorry, I forgot before) that only the view freezes. It still responds normally to input. I can press on all the buttons and select applications, I just don't see anything happening to the bar itself, like the hover-over information; the clock visually freezes; and the list of open applications remains the same. Apparently it still reacts normally for input as the application buttons move around as I open/close applications.

If you look at the attachment; all those CRITICAL messages pop up at the moment I activate the projector.

Revision history for this message
Sebastien Bacher (seb128) wrote :

there is no hang is those log

Revision history for this message
Toon Verwaest (tverwaes) wrote :

I can assure you that it still hangs. If you know a better way of figuring out why it's really freezing, be my guest and inform you. I always have to find a terminal to manually kill the gnome-panel so that it re-spawns and starts working again.

As I already stated before, only the "view" of the gnome-panel freezes; it's still responsive as normal; so if I remember where which applications are open I can click on them and they will come to the foreground; but I don't see any changes in the view of the gnome-panel anymore.

Revision history for this message
Sebastien Bacher (seb128) wrote :

somebody having the issue could perhaps open a bug on http://bugzilla.gnome.org where the software writters will read it too?

Revision history for this message
Toon Verwaest (tverwaes) wrote :

http://bugzilla.gnome.org/show_bug.cgi?id=582465

Revision history for this message
Sebastien Bacher (seb128) wrote :

Thank you for sending the bug to GNOME

Changed in gnome-panel (Ubuntu):
status: Incomplete → Triaged
Bug Watch Updater (bug-watch-updater)
Changed in gnome-panel:
status: Unknown → New
Bug Watch Updater (bug-watch-updater)
Changed in gnome-panel:
importance: Unknown → Critical
Revision history for this message
Martin Wildam (mwildam) wrote :

Last week I was on a presentation connecting to a beamer.
Not just the panel frozen - complete desktop - had to restart gdm.

Fortunately it happened only the first time, then while connected it worked (although xrandr did not find the correct resoluton).

To post a comment you must log in.
This report contains Public information  
Everyone can see this information.
Subscribing...

Other bug subscribers

Remote bug watches

Bug watches keep track of this bug in other bug trackers.