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Old 06-11-2014, 01:33 PM   #1
sinbsd
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Registered: Oct 2002
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Weird screen border issues in KDE (every distro)


I've tried Opensuse 13.1, Kubuntu 14.04 and every other distro I can find that supports KDE and this issue recurs in all of them. This happens with or without the video driver installed. I run a Lenovo y500 with dual gt650m video cards. Ubuntu 14.04 with unity desktop looks and works fine without this issue.

It's a tough one to explain so I have made this short video to show the issue. Note the window borders and how they pixelate / break when dragging.

https://www.youtube.com/watch?v=zNo5JKG0Qi0

If anyone has any idea as to how to fix, I'd be eternally grateful. My setup is HDMI to an external monitor but this issue occurs on both the laptop screen and the external. I've tried turning off desktop effects with no change as well as messing with nvidia-settings.
 
Old 06-12-2014, 08:00 PM   #2
frankbell
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I don't get this on my Lenovo ThinkCenter with Mageia and KDE and 4GB RAM, even while running a VM of OpenSuse and a video. If I remember correctly, that phenomenon is called "tearing."

What are your system's specs and what video card are you using?

A web search for "KDE tearing" will turn up a number of links; I don't feel competent to select which ones might be useful to you.

Last edited by frankbell; 06-12-2014 at 08:03 PM.
 
  


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