https://bugs.freedesktop.org/show_bug.cgi?id=106175
--- Comment #47 from Michel Dänzer michel@daenzer.net --- FWIW, note that TearFree can be toggled at runtime using the RandR output property of the same name. At its default value "auto", TearFree is automatically enabled for an output using rotation / scaling / other transformations.
(In reply to bmilreu from comment #41)
BTW, TearFree is slow and stuttery even with old dc for me.
Sounds like the issue you're seeing with TearFree might be different from the one this report is about.