Hi Hopefully 3rd time lucky (sorry Roman)
I've done some more testing. The flashing I was seeing with Xserver 1.19.5 goes away when I use egl rather then glx with Kwin - I won't be using egl in any of the next tests When I use Xserver 1.20 RC4 with Intel/AMDPGU DDXs Kwin doesn't start - the X server is running (I'm attaching logs) - that's the case whether compositing is enabled or not in Kwin With the modesetting driver, Kwin launches with compositing enabled or disabled. However the lockups in plasmashell are still present. These happen with compositing enabled or disabled too. Simplest way to reproduce - press the start button multiple times until it locks up (usually within 4 times) - leaving it overnight, it seems to have unlocked itself. Alternatively "killall -9 plasmashell && sleep 1 && plasmashell" sorts it from "Alt + F2". I've attached the journal again just after a freeze (journalctl.freeze in the next email) Cheers Mike
journalctl.xz
Description: application/xz
dmesg.xz
Description: application/xz
Xorg.0.log.xz
Description: application/xz
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