From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@freedesktop.org Subject: [Bug 108917] gamma adjustments cause stuttering with amdgpu.dc=1, especially problematic with RedShift etc. Date: Thu, 27 Jun 2019 11:02:26 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============0162261170==" Return-path: Received: from culpepper.freedesktop.org (culpepper.freedesktop.org [131.252.210.165]) by gabe.freedesktop.org (Postfix) with ESMTP id A73676E0CD for ; Thu, 27 Jun 2019 11:02:26 +0000 (UTC) In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: dri-devel@lists.freedesktop.org List-Id: dri-devel@lists.freedesktop.org --===============0162261170== Content-Type: multipart/alternative; boundary="15616333461.C453c45C.5794" Content-Transfer-Encoding: 7bit --15616333461.C453c45C.5794 Date: Thu, 27 Jun 2019 11:02:26 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://bugs.freedesktop.org/ Auto-Submitted: auto-generated https://bugs.freedesktop.org/show_bug.cgi?id=3D108917 --- Comment #12 from tempel.julian@gmail.com --- It seems some recent (kernel?) updates have mitigated the issue a lot when running "redshift -t 4500:4500 -l 1:1", the transition phase is now free of stutter. After that, there is still regular stutter though for subsequent g= amma adjustments by RedShift when Compton with vsync is active. What is really interesting: There is kwin-lowlatency as a kwin fork with vs= ync adjustments: https://github.com/tildearrow/kwin-lowlatency With its compositing, the performance issues of atomic modesetting seem to = be entirely missing. There is zero stutter when opening windows etc., and also continuous RedShift adjustments don't stutter. At the same time, there is z= ero tearing. --=20 You are receiving this mail because: You are the assignee for the bug.= --15616333461.C453c45C.5794 Date: Thu, 27 Jun 2019 11:02:26 +0000 MIME-Version: 1.0 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://bugs.freedesktop.org/ Auto-Submitted: auto-generated

Comme= nt # 12 on bug 10891= 7 from tempel.j= ulian@gmail.com 
It seems some recent (kernel?) updates have mitigated the issu=
e a lot when
running "redshift -t 4500:4500 -l 1:1", the transition phase is n=
ow free of
stutter. After that, there is still regular stutter though for subsequent g=
amma
adjustments by RedShift when Compton with vsync is active.

What is really interesting: There is kwin-lowlatency as a kwin fork with vs=
ync
adjustments:
https://github.co=
m/tildearrow/kwin-lowlatency
With its compositing, the performance issues of atomic modesetting seem to =
be
entirely missing. There is zero stutter when opening windows etc., and also
continuous RedShift adjustments don't stutter. At the same time, there is z=
ero
tearing.

You are receiving this mail because:
  • You are the assignee for the bug.
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