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Postings by Apurv Jyotirmay

KDE Plasma is working fine on Manjaro, but not on Kubuntu 18.04 Beta2

Hi,

I've been trying to move to KDE for a long time, but the only Plasma
release for me that worked on Kubuntu was with Kubuntu 15.10. And after
that, none of the releases are working on my hardware. So, what happens is,
if I use Plasma and KWin (OpenGL 2, OpenGL 3, or Xrendr), I get this weird
flickering when resizing application windows. It's easily observable if I
open up a Dolphin window and start to resize it by the corner rapidly in
every direction. At times, there will be a white patch covering the entire
window for a few milliseconds (or so).

Kubuntu 18.04: Screen contents flicker on resize

I was trying out the Beta build of Kubuntu 18.04 LTS and I faced the same
issue I faced earlier with 17.10. When resizing any window, there are times
when it will flicker. It's random, and switching compositing backend to
openGL 3 didn't help either.
Using Xrender helped in removing the flicker, but then everything started
to tear. Even when I forced full screen repaints, the tearing wouldn't stop.

I don't know if it's a Xorg issue or something with KDE.