Linux

  1. Bug #1386695
  2. Comment #8

Comment 8 for bug 1386695

Revision history for this message
In , Agustin-6 (agustin-6) wrote :

Created attachment 102508
Logs for git kernel

After a suspend I get messages such as these:

<3>[ 39.550435] nouveau E[ PGRAPH][0000:01:00.0] PGRAPH TLB flush idle timeout fail
<3>[ 39.550435] nouveau E[ PGRAPH][0000:01:00.0] PGRAPH_STATUS : 0x01000001 BUSY ROP
<3>[ 39.550435] nouveau E[ PGRAPH][0000:01:00.0] PGRAPH_VSTATUS0: 0x00000000
<3>[ 39.550435] nouveau E[ PGRAPH][0000:01:00.0] PGRAPH_VSTATUS1: 0x00000000
<3>[ 39.550435] nouveau E[ PGRAPH][0000:01:00.0] PGRAPH_VSTATUS2: 0x00200000 ROP
<3>[ 41.685486] nouveau E[ DRM] GPU lockup - switching to software fbcon

And if I was running X it crashes and the screen ends up looking like this: http://imgur.com/a/D3VKw

This is always reproducible but only since Linux 3.15, so I ran a git bisect. The first bad commit is [ecf24de071f4f6cea79ecef5d990794df5875ee1] drm/nouveau: fix fbcon not being accelerated after suspend. After reverting the commmit the machine resumes properly.

The issue persists in drm-nouveau-next (last commit 0b4e8e7... from Jul 8), even if I boot with noaccel=1 nofbaccel=1.

Relevant IRC logs: http://people.freedesktop.org/~cbrill/dri-log/index.php?channel=nouveau&highlight_names=Nitsuga&date=2014-07-09