As you will see from the image here (https://forums.opensuse.org/showthread.php/509011-Weird-Xorg-or-windowing-problem) KDE apps/utils start messing up their display area. If I don't move them they look fine. When I move them or the data in them changes they mess up their display of their contents. It's clear that the area is writing over itself without clearing out what's being displayed already so you get this continual degrading of what you can read in the area of the app. Non-KDE apps don't seem to have this problem as you can see on the image as well. Above the image is a little explanation of what is on the image. My guess is there is something underlying that's common to all the KDE apps windowing that's messing up. QT perhaps? Reproducible: Always Steps to Reproduce: 1. I suspect you won't be able to reproduce it without my set up which is a little extreme however I am most happy to do whatever you need to give you the diagnostic information you need. 2. 3. Actual Results: KDE apps start messing up their display. Expected Results: KDE apps don't start messing up their display. This doesn't happen instantly. It starts after about 30 minutes of use (it varies). Some system specs: Processor: i7-5960X CPU @ 3.00GHz OS: Linux 3.16.7-24-default openSUSE 13.2 (Harlequin) (x86_64) KDE: 4.14.9 Graphics card: HD 5870 Eyefinity 6 Edition Graphics Displays: 6 displays arranged in 3 across by 2 down. Each 2560 x 1440 pixels. Desktop area: 7680 x 2880
I should mention I am using the native Linux driver for the graphics card and as far as know have no proprietary drivers on my system.
I might have a fix. I came across this very hard to find piece of information: QT_X11_NO_MITSHM=1 placed in: /etc/environment fixes a shared memory issue that affects some people's systems.
Hi, i have the exact same bug on kubuntu 15.10 (upgraded from 15.04) some applications like okular, chrome dialog box (file choser), etc... are totally unasable. i will try the proposed workaround.
the fix in environment worked for me too
Is this happening in any recent versions of Plasma 5?
Dear Bug Submitter, This bug has been in NEEDSINFO status with no change for at least 15 days. Please provide the requested information as soon as possible and set the bug status as REPORTED. Due to regular bug tracker maintenance, if the bug is still in NEEDSINFO status with no change in 30 days the bug will be closed as RESOLVED > WORKSFORME due to lack of needed information. For more information about our bug triaging procedures please read the wiki located here: https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging If you have already provided the requested information, please mark the bug as REPORTED so that the KDE team knows that the bug is ready to be confirmed. Thank you for helping us make KDE software even better for everyone!
No. I had a problem with KDE crashing in Plasma 5 but I got rid of most of that when I learned that with my card I should be using the new driver, the one that's set to take over from radeon. So far I have only had KDE crash once since I changed display drivers. This particular bug is not here anymore. I do have a question however, once KDE crashes I generally have to reboot only very occasionally have I been lucky enough to recover from a crash. Are there tools where I can trace what crashes in KDE so when things like this happen I can figure out the cause?
Yeah, see https://community.kde.org/Guidelines_and_HOWTOs/Debugging/How_to_create_useful_crash_reports Glad to hear things are looking better now!