Ubuntu
xorg package

  1. Bug #1581560
  2. Comment #3

Comment 3 for bug 1581560

Revision history for this message
Rob Latham (rob-terizla) wrote :

I tried an upstream kernel ( 4.4.12-040412-generic #201606011712 ). Attaching after suspend/resume no longer results in a crash.

The screen frequently fails to restore on the first try. dmesg has these lines in that case:

[drm:intel_mst_disable_dp [i915]] *ERROR* failed to update payload -22
[drm] GPU HANG: ecode 8:-1:0x00000000, reason: Kicking stuck wait on blitter ring, action: continue
[drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun

But, in an improvement from the Ubuntu kernel, I can unplug and try again with success.