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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - gamma adjustments cause stuttering with amdgpu.dc=1, especially problematic with RedShift etc."
href="https://bugs.freedesktop.org/show_bug.cgi?id=108917#c12">Comment # 12</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - gamma adjustments cause stuttering with amdgpu.dc=1, especially problematic with RedShift etc."
href="https://bugs.freedesktop.org/show_bug.cgi?id=108917">bug 108917</a>
from <span class="vcard"><a class="email" href="mailto:tempel.julian@gmail.com" title="tempel.julian@gmail.com">tempel.julian@gmail.com</a>
</span></b>
<pre>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 gamma
adjustments by RedShift when Compton with vsync is active.
What is really interesting: There is kwin-lowlatency as a kwin fork with vsync
adjustments:
<a href="https://github.com/tildearrow/kwin-lowlatency">https://github.com/tildearrow/kwin-lowlatency</a>
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 zero
tearing.</pre>
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