Corrupt (stripes) panel shadow texture

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

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

Exists still in 12.10 Alpha 3 - on a Dell XT laptop the corruption is worse than in previous releases
 (ATI Radeon Express 1250)

Seems to be an 3D rendering problem of the radeon driver since it affects Mint(Debian Edition as well as Ubuntu based) Cinnamon too.

I can confirm the bug in:
- Fedora 16 Live CD
- Ubuntu 12.04 (or every edition with gnome-shell)
- Linux Mint (with Cinnamon)

Note:
Everything is fine in Gnome2 (in Ubuntu), and MATE (in Mint) except some time in watching Youtube video (or other videos) appears flicker horizonal lines in the monitor in random position!

Mattia,

This bug is about Unity. If you're using Gnome Shell then please log a new bug.

I can confirm it in Ubuntu 12.04 64bit, intel graphic card (HD3000 I think MacBook Air 4,2).

I don't know if this is any use of, but I'm using xorg-edgers, r300g
Running xorg tool named rendercheck -t gradients, gives a lots of failed tests starting like this:

Beginning Src linear gradient test on a8
Src linear gradient test error of 30.6196 at (0, 0) --
           R G B A
got: 0.00 0.00 0.00 0.04
expected: 0.00 0.00 0.00 1.00
gradient: 0 stops: 2 repeat: 1 pos: 5/5
src color: 1.00 0.00 0.00 1.00
dst color: 0.00 0.00 0.00 1.00
Src linear gradient test error of 30.6196 at (0, 0) --
           R G B A
got: 0.00 0.00 0.00 0.04
expected: 0.00 0.00 0.00 1.00
gradient: 0 stops: 2 repeat: 1 pos: 3/7
src color: 1.00 0.00 0.00 1.00
dst color: 0.00 0.00 0.00 1.00
Src linear gradient test error of 30.6196 at (0, 0) --
           R G B A
got: 0.00 0.00 0.00 0.04
expected: 0.00 0.00 0.00 1.00
gradient: 0 stops: 2 repeat: 1 pos: 7/3
src color: 1.00 0.00 0.00 1.00
dst color: 0.00 0.00 0.00 1.00
...

Not sure if this is the same issue. My panel has transparent stripes as a background. Somtimes it also flickers...

Still exists in Ubuntu 13.04.

Attaching a screenshot (looks even worse than in 12.10)

I have no problem since 12.04 (to 13.04), do you?

It seems like the bug seems to be quite ATI Radeon Xpress 1250 specific.

Here's also a duplicate with some more useful discussion:
https://bugs.freedesktop.org/show_bug.cgi?id=35998

Had this bug on Unity a long while ago. Now have this bug whilst trying out Cinnamon on Mint 15.

I have ATI Radeon Xpress 1250

Madis, this bug was reported a while ago and there hasn't been any activity in it recently. We were wondering if this is still an issue? If so, could you please test for this with the latest development release of Ubuntu? ISO images are available from http://cdimage.ubuntu.com/daily-live/current/ .

If it remains an issue, could you please run the following command in the development release from a Terminal (Applications->Accessories->Terminal), as it will automatically gather and attach updated debug information to this report:

apport-collect -p xserver-xorg-video-ati REPLACE-WITH-BUG-NUMBER

Please note, given that the information from the prior release is already available, doing this on a release prior to the development one would not be helpful.

Thank you for your understanding.

Helpful bug reporting tips:
https://wiki.ubuntu.com/ReportingBugs

I don't have my old laptop anymore, so can't test it.

There is some discussion here, though (but might not be exactly the same problem):
https://bugs.freedesktop.org/show_bug.cgi?id=35457

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

Madis, this bug report is being closed due to your last comment https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/751828/comments/16 regarding you no longer have the hardware. For future reference you can manage the status of your own bugs by clicking on the current status in the yellow line and then choosing a new status in the revealed drop down box. You can learn more about bug statuses at https://wiki.ubuntu.com/Bugs/Status. Thank you again for taking the time to report this bug and helping to make Ubuntu better. Please submit any future bugs you may find.

Is it possible to reopen this bug, i have the same issue on somsung P500 with Radeon Xpress 1250?

Peter, it will help immensely if you filed a new report via a terminal:
ubuntu-bug xorg

Please ensure you have xdiagnose installed, and that you click the Yes button for attaching additional debugging information.

i opened bug 1492580