freebsd stable - Jun 2015 - intel(0): Detected a hung GPU, disabling acceleration

mplayer and vlc stopped showing video while trying watch .flv, .mp4,
etc. on my FreeBSD laptop running:

  FreeBSD peace 10.1-STABLE FreeBSD 10.1-STABLE #7 r284146: Mon 
  Jun  8 05:10:48 CDT 2015     root at peace:/usr/obj/usr/src/sys/PEACE  
  i386

I get a black screen. However, audio works fine. I used to be able to 
be able to do this before. Looking at Xorg.0.log, I see:

  [    35.523] (EE) intel(0): Detected a hung GPU, disabling acceleration.


dmesg shows:

  info: [drm] Initialized i915 1.6.0 20080730 for drmn0 on minor 0
  error: [drm:pid12:i915_hangcheck_hung] *ERROR* Hangcheck timer
  elapsed... GPU hung


I have the following graphics chip:

  vgapci1 at pci0:0:2:1:     class=0x038000 card=0x201a17aa chip=0x27a68086
rev=0x03 hdr=0x00
    vendor     = 'Intel Corporation'
    device     = 'Mobile 945GM/GMS/GME, 943/940GML Express Integrated
Graphics Controller'
    class      = display


Using the x11 driver works, but can't scale to fullscreen.

Xorg.0.log, dmesg and i915_error_state is at:

  http://www.eskimo.com/~joji/FreeBSD/Xorg.0.log
  http://www.eskimo.com/~joji/FreeBSD/dmesg.txt
  http://www.eskimo.com/~joji/FreeBSD/i915_error_state.txt


Anybody else having similar issues?  Any ideas/suggestions will be
greatly appreciated.

Mon, 8 Jun 2015 09:51:38 -0700
Joseph Olatt <joji at eskimo.com> ???????:
> mplayer and vlc stopped showing video while trying watch .flv, .mp4,
> etc. on my FreeBSD laptop running:
> 
>   FreeBSD peace 10.1-STABLE FreeBSD 10.1-STABLE #7 r284146: Mon 
>   Jun  8 05:10:48 CDT 2015     root at peace:/usr/obj/usr/src/sys/PEACE  
>   i386
> 
> I get a black screen. However, audio works fine. I used to be able to 
> be able to do this before. Looking at Xorg.0.log, I see:
> 
>   [    35.523] (EE) intel(0): Detected a hung GPU, disabling
> acceleration.
> 
> 
> dmesg shows:
> 
>   info: [drm] Initialized i915 1.6.0 20080730 for drmn0 on minor 0
>   error: [drm:pid12:i915_hangcheck_hung] *ERROR* Hangcheck timer
>   elapsed... GPU hung
> 
> 
> I have the following graphics chip:
> 
>   vgapci1 at pci0:0:2:1:     class=0x038000 card=0x201a17aa
> chip=0x27a68086 rev=0x03 hdr=0x00 vendor     = 'Intel Corporation'
>     device     = 'Mobile 945GM/GMS/GME, 943/940GML Express Integrated
> Graphics Controller' class      = display
> 
> 
> Using the x11 driver works, but can't scale to fullscreen.
> 
> Xorg.0.log, dmesg and i915_error_state is at:
> 
>   http://www.eskimo.com/~joji/FreeBSD/Xorg.0.log
>   http://www.eskimo.com/~joji/FreeBSD/dmesg.txt
>   http://www.eskimo.com/~joji/FreeBSD/i915_error_state.txt
> 
> 
> Anybody else having similar issues?  Any ideas/suggestions will be
> greatly appreciated.
> 
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=194766