On Mon, Dec 10, 2018 at 09:26:03PM +0700, Robert Elz wrote: > Date: Sat, 8 Dec 2018 17:38:05 +0000 > From: Arthur Barlow <arthurbar...@gmail.com> > Message-ID: > <CANR6Wa5u22CLN+8ecnmVyXH9wZnm3invc=ka5ji6tfnzjrj...@mail.gmail.com> > > | I have noticed periodically that I get and error in my xconsole that > reads: > | kern error: > [drm:(/usr/src/sys/external/bsd/drm2/dist/drm/i915/intel_sprite.c:132)intel_pipe_update_start] > *ERROR* Potential atomic update failure on pipe A: -35 > > I see this as well, from time to time. It doesn't seem to affect anything. > > I do get occasional graphics glitches, most often in seamonkey, or > vncviewer) but they clear up on any redraw ... as best I can tell the > two are unrelated.
Hmm, I personally enabled triple buffering in the xf86 driver. I checked it again and it looks like the expectation by developers is to use a compositor (compiz/wayland/xfwm/kwin...) That makes sense. It should save a lot of redrawing if we do the buffering on a per-window basis, but a driver can't offer that.
