After I use Xine Unity 2d panel become invisible

[Zsolt Fatér]

After I use Xine in Unity 2d , Unity 2d panel and menu bar become invisible.

OnClick, OnMouseOver is work.

[Gerry Boland (gerboland)]

Confirmed. Bug occurs when you close Xine. Suspect this is a Metacity bug, but must investigate.

Can recover visibility by pressing Super+S to reveal Spread (you see nothing however), and then hitting Escape. Then things return to normal.

[Gerry Boland (gerboland)]

Turning off compositing does not change anything:

gconftool-2 --set --type bool /apps/metacity/general/compositing_manager false

But turning it back on again restores the visibility:

gconftool-2 --set --type bool /apps/metacity/general/compositing_manager true

xwininfo -all returns interesting. I suspect this is a Metacity bug.

[Albert Astals Cid (aacid)]

I tried using kwin instead of metacity and the bug goes away.

[Gerry Boland (gerboland)]

Similar bug reported here: https://bugzilla.gnome.org/show_bug.cgi?id=606431

No solution found, but original reporter found it occurs with other WMs.

Also I believe the same bug opened here: https://bugs.launchpad.net/ubuntu/+source/metacity/+bug/396590
This bug was marked duplicate of a similar sounding Compiz bug: https://bugs.launchpad.net/ubuntu/+source/compiz/+bug/147943 which I think is wrong.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[jcdutton (james-superbug)]

Bug looks similar to bug number 981891.
https://bugs.launchpad.net/ubuntu/+source/unity-2d/+bug/981891

[jcdutton (james-superbug)]

Steps to reproduce. Problem only happens on unity-2d, not unity (the 3d version).

Install xine-ui
run "xine" from the command line
Press h
Press q
Icons disappear

[Jayen (jayen)]

I don't use xine, but I hit the same symptoms when my laptop came out of sleep and I unlocked the screen.

[Jayen (jayen)]

Also happens when running gnucash over ssh with X11 forwarding.

[NG (gryspnik)]

I had exactly the same problems and they were all fixed when I restored the default video drivers which had been corrupted. Here's the fix:

http://askubuntu.com/questions/68306/how-do-i-restore-default-video-drivers

I hope it works for you

[Trond-trondhuso (trond-trondhuso)]

I only need to click the super key (when they search + recent apps window shows) to reproduce part of this error.

Window manager warning: Buggy client sent a _NET_ACTIVE_WINDOW message with a timestamp of 0 for 0x1400002 (unity-2d-s)
Window manager warning: meta_window_activate called by a pager with a 0 timestamp; the pager needs to be fixed.
Window manager warning: Buggy client sent a _NET_ACTIVE_WINDOW message with a timestamp of 0 for 0x3c000bc (Bug #89449)
Window manager warning: meta_window_activate called by a pager with a 0 timestamp; the pager needs to be fixed.

Not sure if it is related to this report, but I am filing it here.