Re: intelfb0 at i915drmkms0

[Ron Georgia <netverbs%gmail.com@localhost>]

The thread titled " Funky Display Output" has an on going discussion that involves this issue.

On 4/29/19, 5:13 AM, "Travis Paul" <current-users-owner%NetBSD.org@localhost on behalf of Tr%visPaul.me@localhost> wrote:

    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