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    <head>
      <base href="https://bugs.freedesktop.org/" />
    </head>
    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - DRM crashes after resuming from sleep"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=90331">90331</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>DRM crashes after resuming from sleep
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>DRI
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>XOrg git
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>x86-64 (AMD64)
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>Linux (All)
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>NEW
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>normal
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>medium
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>DRM/Intel
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>intel-gfx-bugs@lists.freedesktop.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>spektom@gmail.com
          </td>
        </tr>

        <tr>
          <th>QA Contact</th>
          <td>intel-gfx-bugs@lists.freedesktop.org
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>intel-gfx-bugs@lists.freedesktop.org
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Created <span class=""><a href="attachment.cgi?id=115574" name="attach_115574" title="/sys/class/drm/card0/error">attachment 115574</a> <a href="attachment.cgi?id=115574&action=edit" title="/sys/class/drm/card0/error">[details]</a></span>
/sys/class/drm/card0/error

After resuming from sleep (opening laptop lid) DRM crashes, and UI becomes
unusable.

1. Dmesg log:

[12676.587841] [drm] stuck on render ring
[12676.593240] [drm] GPU HANG: ecode 0:0x85dffefd, in Xorg [1703], reason: Ring
hung, action: reset
[12676.593275] [drm] GPU hangs can indicate a bug anywhere in the entire gfx
stack, including userspace.
[12676.593278] [drm] Please file a _new_ bug report on bugs.freedesktop.org
against DRI -> DRM/Intel
[12676.593280] [drm] drm/i915 developers can then reassign to the right
component if it's not a kernel issue.
[12676.593282] [drm] The gpu crash dump is required to analyze gpu hangs, so
please always attach it.
[12676.593285] [drm] GPU crash dump saved to /sys/class/drm/card0/error
[12716.612307] [drm] stuck on blitter ring
[12716.618445] [drm] GPU HANG: ecode 2:0xfffffffe, in cinnamon [2165], reason:
Ring hung, action: reset

2. Crash dump is attached.

3. Laptop model:

Dell Latitude E7450

4. lspci:

00:00.0 Host bridge: Intel Corporation Broadwell-U Host Bridge -OPI (rev 09)
00:02.0 VGA compatible controller: Intel Corporation Broadwell-U Integrated
Graphics (rev 09)
00:03.0 Audio device: Intel Corporation Broadwell-U Audio Controller (rev 09)
00:04.0 Signal processing controller: Intel Corporation Broadwell-U Camarillo
Device (rev 09)
00:14.0 USB controller: Intel Corporation Wildcat Point-LP USB xHCI Controller
(rev 03)
00:16.0 Communication controller: Intel Corporation Wildcat Point-LP MEI
Controller #1 (rev 03)
00:19.0 Ethernet controller: Intel Corporation Ethernet Connection (3) I218-LM
(rev 03)
00:1b.0 Audio device: Intel Corporation Wildcat Point-LP High Definition Audio
Controller (rev 03)
00:1c.0 PCI bridge: Intel Corporation Wildcat Point-LP PCI Express Root Port #1
(rev e3)
00:1c.3 PCI bridge: Intel Corporation Wildcat Point-LP PCI Express Root Port #4
(rev e3)
00:1c.4 PCI bridge: Intel Corporation Wildcat Point-LP PCI Express Root Port #5
(rev e3)
00:1d.0 USB controller: Intel Corporation Wildcat Point-LP USB EHCI Controller
(rev 03)
00:1f.0 ISA bridge: Intel Corporation Wildcat Point-LP LPC Controller (rev 03)
00:1f.2 RAID bus controller: Intel Corporation 82801 Mobile SATA Controller
[RAID mode] (rev 03)
00:1f.3 SMBus: Intel Corporation Wildcat Point-LP SMBus Controller (rev 03)
01:00.0 SD Host controller: O2 Micro, Inc. SD/MMC Card Reader Controller (rev
01)
02:00.0 Network controller: Intel Corporation Wireless 7265 (rev 48)

5. OS:

Ubuntu 14.04 Trusty

Linux michael-lap 3.13.0-52-generic #85-Ubuntu SMP Wed Apr 29 16:44:17 UTC 2015
x86_64 x86_64 x86_64 GNU/Linux</pre>
        </div>
      </p>
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