Comme=
nt # 85
on bug 10617=
5
from Nicholas Kazlauskas<=
/a>
(In reply to tempel.julian from comment #82)
> Could you please try the following?
>=20
> -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 t=
he
> procedure several times in a row
> -there should be stutter happening in the vsynctester.com browser wind=
ow
>=20
> -now quit Compton and start it with "vblank_mode=3D0 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=3D0, there also shouldn't be any stutter =
when
> vsync is kept enabled
>=20
> My layman impression is that this indicates the problem originating
> somewhere in the xorg/driver space, and not in Plasma or the composito=
r.
I've tried the setup you've described but I see no stuttering in vsynctester
and no difference with vblank_mode=3D0. The perf overlay on compton itself =
looks
stutter free as well. I only see the stuttering doing what you first descri=
bed
with the dock widgets/tray widgets.