[Bug 60637] New: Monitor entering suspend state throws errors in dmesg

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=60637

            Bug ID: 60637
           Summary: Monitor entering suspend state throws errors in dmesg
           Product: Drivers
           Version: 2.5
    Kernel Version: 3.10.3
          Hardware: All
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Video(DRI - Intel)
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: da_audiophile at yahoo.com
                CC: intel-gfx-bugs at lists.freedesktop.org
        Regression: No

Created attachment 107025
  --> https://bugzilla.kernel.org/attachment.cgi?id=107025&action=edit
complete dmesg

Since updating the the 3.10 series, the following error is recorded by dmesg
which correspond to my monitor entering a suspend state.  For the purposes of
this bug report, I rebooted, logged in and allowed xscreensaver to put the
monitor to sleep.  Settings per xscreensaver-demo:

[X] Power Management Enabled
 Standby after 10 min
 Suspend after 11 min
 Off after 12 min

Note that the first error is thrown slightly after 11 min and subsequent error
after after 12 min.  I suspect these correspond to my settings above.  I have
no idea why it is then repeated 1 h 48 m later though.

% dmesg | grep train 
[  670.187674] [drm:intel_dp_complete_link_train] *ERROR* failed to train DP,
aborting
[  730.617317] [drm:intel_dp_complete_link_train] *ERROR* failed to train DP,
aborting
[ 6531.587198] [drm:intel_dp_complete_link_train] *ERROR* failed to train DP,
aborting
[ 6531.784460] [drm:intel_dp_complete_link_train] *ERROR* failed to train DP,
aborting

My CPU is an Intel i7-3770k (Ivy) and I am using the integrated HD 4000
graphics together with the distro provided driver packages: intel-dri
libva-intel-driver xf86-video-intel.  I am using 'sna' acceleration per
/etc/X11/xorg.conf.d/20-intel.conf.

Glad to provide additional logs/info upon request.

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