garbled icons in alt-tab task switcher

[Qaramazov]

Binary package hint: compiz

After upgrading from Hardy to Intrepid Beta, some of the application show up with garbled icons in alt-tab task switcher. I am attaching a screenshot.

[Ryan Thompson (rct86)]

In my experience, this seems to happen every time I suspend and resume. Thus I assume it must have something to do with restoring video memory on resume, or something like that.

Also, restarting compiz (Alt+F2, compiz --replace) will fix the icons, until the next suspend/resume.

[Qaramazov (qaramazov)]

Indeed "compiz --replace" fixes the problem, but having to run it every time after a suspend is not fun, since it takes some time for the machine to become usable again, and occasionally it just freezes.

[John Carlyle-Clarke (jpcc)]

I get the same problem and I don't require a suspend/resume to trigger it. Activation of the screensaver does it for me.

[Vitaliy Pomazyonkov (vitorg)]

I have the same problem using 8.10 on Panasonic CF-Y7 notebook. I'm not use suspend/resume.

[jorge (xxopxe)]

Have it too, after susponding.
Now for example a notepad icons shows as a gnome foot,upside down.
Intrepid updated from Hardy, Integrated Intel graphics card.
compiz --replace fixes the glitches.

[Geir Ove Myhr (gomyhr)]

What looks as the same bug has also been reported as bug 285098 in the package xserver-xorg-video-intel. What kind of graphics cards do people here have? The command `lspci -nn | grep VGA` tells what graphics chipset is on your computers.

If all of you have intel cards it is probably a bug in the driver. If some of you have other cards it's probably compiz.

[Ryan Thompson (rct86)]

Yep, Intel here.

$ lspci -nn | grep VGA
00:02.0 VGA compatible controller [0300]: Intel Corporation Mobile 945GM/GMS, 943/940GML Express Integrated Graphics Controller [8086:27a2] (rev 03)

[John Carlyle-Clarke (jpcc)]

Intel here.

00:02.0 VGA compatible controller [0300]: Intel Corporation Mobile 915GM/GMS/910GML Express Graphics Controller [8086:2592] (rev 03)

[Qaramazov (qaramazov)]

Same here:

00:02.0 VGA compatible controller [0300]: Intel Corporation Mobile 945GM/GMS, 943/940GML Express Integrated Graphics Controller [8086:27a2] (rev 03)

[Geir Ove Myhr (gomyhr)]

As far as I can see 4 out of 5 commenters have confirmed that they have intel graphics, and the 5th (Vitaily) has a Panasonic CF-Y7 which is listed as having a Intel GMA X3100 (965GM chipset). Therefore I'm guessing this is a bug in the intel driver and I have set this as a duplicate of bug 285098.

[joachim (joachim-mailshack)]

This bug really annoyed me. Have an EEE pc 701 and like to enjoy Intrepid without these distractions. Here is my quick solution for now:

In the terminal, type:

sudo gedit /usr/lib/hal/scripts/linux/hal-system-power-suspend-linux

Scroll to the bottom of the script. Before 'exit $RET' add these lines:

# Reinit compiz to get rid of icon junk...
sleep 8
compiz --replace &

Remember to remove these lines as soon as this bug is fixed. Hope this works for other Ubuntu users. Cheers and thanks again to the developers doing all the hard work!