intelfb0 at i915drmkms0

[Travis Paul <Tr%visPaul.me@localhost>]

Is anyone else seeing artifacts when using X in base, with i915 Intel graphics? [1][2][3]

I have 2 identical machines that experience this behavior, the artifacts never stop appearing so X is fairly unusable. The artifacts are even worse with fluxbox.  I also see the following kernel errors often:

  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 C: -35
  kern error: [drm:(/usr/src/sys/external/bsd/drm2/dist/drm/i915/intel_sprite.c:205)intel_pipe_update_end] *ERROR* Atomic update failure on pipe C (start=13132 end=13133) time 5 us, min 1073, max 1079, scanline start 1076, end 1079

I’m was using a current build from April 27, I switched back to NetBSD 8 to see if the issue is present there (as I’ve never used X on these machines before.) The issue does not occur in NetBSD 8.

Thanks in advance,
Travis

[1] https://us-east.manta.joyent.com/tpaul/public/netbsd/X11/1.jpg
[2] https://us-east.manta.joyent.com/tpaul/public/netbsd/X11/2.jpg
[3] https://us-east.manta.joyent.com/tpaul/public/netbsd/X11/3.jpg