I've been trying out KDE Neon and like it so far, however my PC is a triple monitor setup using a Radeon HD7770 and I'm having huge problems with screen tearing. I've tried just using one screen but even then I get tearing. Has anyone else had this problem with a similar AMD Graphics Card and managed to fix it?

Have the same Problem with NVIDIA GTX 690.

i use this:

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 export __GL_YIELD="USLEEP"

in /etc/profile.d/kwin.sh

but its not work in all applications such as UnrealEngine 4

i think thats an x.org.server problem or kwin

Look this article: http://www.diolinux.com.br/2015/10/como-remover-o-screen-tearing-no-ubuntu.html its may help

I fixed this eventually by following these instructions:

https://cubethethird.wordpress.com/2016 ... on-ubuntu/

For me it was fixed just by adding

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export KWIN_TRIPLE_BUFFER=1

to /etc/profile