Comment # 85
on bug 106175
from Nicholas Kazlauskas
(In reply to tempel.julian from comment #82) > Could you please try the following? > > -disable Plasma compositing with Ctr + Alt + F12 (or in the compositor > settings and log out and in again) > -get the latest Compton release by yshui: https://github.com/yshui/compton > -start Compton (Mesa still enables vsync automatically in the latest > release, this has changed with compton-git) > -open a Dolphin window and www.vsynctester.com in webbrowser > -now click Dolphin's title bar, move it a bit, release it and repeat the > procedure several times in a row > -there should be stutter happening in the vsynctester.com browser window > > -now quit Compton and start it with "vblank_mode=0 compton" to enable GLX > compositing without vsync > -now the repeatedly moving Dolphin's window procedure described above > shouldn't lead to any stutter > -when booting with amdgpu.dc=0, there also shouldn't be any stutter when > vsync is kept enabled > > My layman impression is that this indicates the problem originating > somewhere in the xorg/driver space, and not in Plasma or the compositor. I've tried the setup you've described but I see no stuttering in vsynctester and no difference with vblank_mode=0. The perf overlay on compton itself looks stutter free as well. I only see the stuttering doing what you first described with the dock widgets/tray widgets.
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