Ubuntu
xserver-xorg-video-intel package

  1. Bug #1501941
  2. Comment #12

Comment 12 for bug 1501941

Revision history for this message
In , Jani-nikula (jani-nikula) wrote :

(In reply to Robert Ancell from comment #1)
> We are currently working around this issue in Ubuntu 15.04 by reverting that
> one commmit.

That one commit being

commit 7d9a74622e5a936e4860fcef8358619bf59adae8
Author: Chris Wilson <email address hidden>
Date: Mon Jun 15 14:16:34 2015 +0100

    sna: Be robust in handling DPMS failures

i.e. not a kernel commit. Apparently Chris' conclusion was that the kernel returns an error on DPMS.

Please attach dmesg with drm.debug=14 module parameter, all the way from boot to reproducing the problem.