Public bug reported:

the system is a thinkpad x220t. I don't shut it down, just suspend/resume. past 
3 days uptime and 21 suspends I got slow graphics and X at 80% cpu, with those 
lines in /var/log/Xorg.0.log:
[115619.748] (EE) intel(0): [DRI2] DRI2SwapComplete: bad drawable
[115619.796] (EE) intel(0): [DRI2] DRI2SwapComplete: bad drawable
[115755.059] (EE) intel(0): [DRI2] DRI2SwapComplete: bad drawable
[115755.059] (EE) intel(0): [DRI2] DRI2SwapComplete: bad drawable
[119211.856] (EE) intel(0): Failed to submit rendering commands (Input/output 
error), disabling acceleration.
[119211.857] (EE) intel(0): When reporting this, please include 
/sys/class/drm/card0/error and the full dmesg.

around the same time in dmesg:
[119206.581790] [drm] stuck on render ring
[119206.582299] [drm] GPU HANG: ecode 6:0:0xf288fffc, in Xorg [793], reason: 
Ring hung, action: reset
[119206.584402] drm/i915: Resetting chip after gpu hang
[119212.581861] [drm] stuck on render ring
[119212.582383] [drm] GPU HANG: ecode 6:0:0xf288fff8, in Xorg [793], reason: 
Ring hung, action: reset
[119212.582478] [drm:i915_set_reset_status [i915]] *ERROR* gpu hanging too 
fast, banning!
[119212.584508] drm/i915: Resetting chip after gpu hang

# lsb_release -rd
Description:    Ubuntu 16.04.2 LTS
Release:        16.04
# apt-cache policy  xserver-xorg-video-intel
xserver-xorg-video-intel:
  Installed: 2:2.99.917+git20160325-1ubuntu1.2
  Candidate: 2:2.99.917+git20160325-1ubuntu1.2
  Version table:
 *** 2:2.99.917+git20160325-1ubuntu1.2 500
        500 http://ua.archive.ubuntu.com/ubuntu xenial-updates/main amd64 
Packages
        100 /var/lib/dpkg/status
     2:2.99.917+git20160325-1ubuntu1 500
        500 http://ua.archive.ubuntu.com/ubuntu xenial/main amd64 Packages

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: xserver-xorg-video-intel 2:2.99.917+git20160325-1ubuntu1.2
ProcVersionSignature: Ubuntu 4.4.0-71.92-generic 4.4.49
Uname: Linux 4.4.0-71-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.5
Architecture: amd64
Date: Thu Apr 13 10:39:33 2017
ProcEnviron:
 LANGUAGE=en_US:en
 TERM=xterm-256color
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: xserver-xorg-video-intel
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: xserver-xorg-video-intel (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug xenial

** Attachment added: "dmesg, followed by cat /sys/class/drm/card0/error"
   
https://bugs.launchpad.net/bugs/1682364/+attachment/4861091/+files/video-errors+dmesg.txt

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https://bugs.launchpad.net/bugs/1682364

Title:
  hardware acceleration fails after numerous suspends

Status in xserver-xorg-video-intel package in Ubuntu:
  New

Bug description:
  the system is a thinkpad x220t. I don't shut it down, just suspend/resume. 
past 3 days uptime and 21 suspends I got slow graphics and X at 80% cpu, with 
those lines in /var/log/Xorg.0.log:
  [115619.748] (EE) intel(0): [DRI2] DRI2SwapComplete: bad drawable
  [115619.796] (EE) intel(0): [DRI2] DRI2SwapComplete: bad drawable
  [115755.059] (EE) intel(0): [DRI2] DRI2SwapComplete: bad drawable
  [115755.059] (EE) intel(0): [DRI2] DRI2SwapComplete: bad drawable
  [119211.856] (EE) intel(0): Failed to submit rendering commands (Input/output 
error), disabling acceleration.
  [119211.857] (EE) intel(0): When reporting this, please include 
/sys/class/drm/card0/error and the full dmesg.

  around the same time in dmesg:
  [119206.581790] [drm] stuck on render ring
  [119206.582299] [drm] GPU HANG: ecode 6:0:0xf288fffc, in Xorg [793], reason: 
Ring hung, action: reset
  [119206.584402] drm/i915: Resetting chip after gpu hang
  [119212.581861] [drm] stuck on render ring
  [119212.582383] [drm] GPU HANG: ecode 6:0:0xf288fff8, in Xorg [793], reason: 
Ring hung, action: reset
  [119212.582478] [drm:i915_set_reset_status [i915]] *ERROR* gpu hanging too 
fast, banning!
  [119212.584508] drm/i915: Resetting chip after gpu hang

  # lsb_release -rd
  Description:  Ubuntu 16.04.2 LTS
  Release:      16.04
  # apt-cache policy  xserver-xorg-video-intel
  xserver-xorg-video-intel:
    Installed: 2:2.99.917+git20160325-1ubuntu1.2
    Candidate: 2:2.99.917+git20160325-1ubuntu1.2
    Version table:
   *** 2:2.99.917+git20160325-1ubuntu1.2 500
          500 http://ua.archive.ubuntu.com/ubuntu xenial-updates/main amd64 
Packages
          100 /var/lib/dpkg/status
       2:2.99.917+git20160325-1ubuntu1 500
          500 http://ua.archive.ubuntu.com/ubuntu xenial/main amd64 Packages

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: xserver-xorg-video-intel 2:2.99.917+git20160325-1ubuntu1.2
  ProcVersionSignature: Ubuntu 4.4.0-71.92-generic 4.4.49
  Uname: Linux 4.4.0-71-generic x86_64
  ApportVersion: 2.20.1-0ubuntu2.5
  Architecture: amd64
  Date: Thu Apr 13 10:39:33 2017
  ProcEnviron:
   LANGUAGE=en_US:en
   TERM=xterm-256color
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: xserver-xorg-video-intel
  UpgradeStatus: No upgrade log present (probably fresh install)

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