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      <base href="https://bugs.freedesktop.org/">
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    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - Graphics artifacts and VM_CONTEXT1_PROTECTION_FAULT_ADDR 0x00000000 in dmesg"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=106913">106913</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Graphics artifacts and VM_CONTEXT1_PROTECTION_FAULT_ADDR 0x00000000 in dmesg
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>xorg
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>unspecified
          </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>major
          </td>
        </tr>

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

        <tr>
          <th>Component</th>
          <td>Driver/AMDgpu
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>xorg-driver-ati@lists.x.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>marcin2006@gmail.com
          </td>
        </tr>

        <tr>
          <th>QA Contact</th>
          <td>xorg-team@lists.x.org
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Hello,
please help to pin down following problem:

I noticed that there are some glitches in graphics after upgrade:
<a href="http://img.koci.net.pl/?v=beznazwy.png">http://img.koci.net.pl/?v=beznazwy.png</a>

It is caused by those packages:
[2018-06-12 20:18] [ALPM] upgraded xf86-video-ati (1:18.0.1-1 -> 1:18.0.1-2)
[2018-06-12 20:18] [ALPM] upgraded xorg-server (1.19.6+13+gd0d1a694f-2 ->
1.20.0-7)
[2018-06-12 20:18] [ALPM] upgraded xorg-server-xvfb (1.19.6+13+gd0d1a694f-2 ->
1.20.0-7)

If you downgrade packages to mentioned versions, problem goes away.
(you can browse changes in Archlinux packages at:
<a href="https://git.archlinux.org/svntogit/packages.git/log/trunk?h=packages/xorg-server">https://git.archlinux.org/svntogit/packages.git/log/trunk?h=packages/xorg-server</a>
<a href="https://git.archlinux.org/svntogit/packages.git/log/trunk?h=packages/xf86-video-ati">https://git.archlinux.org/svntogit/packages.git/log/trunk?h=packages/xf86-video-ati</a>

)

Also my dmesg is full of messages like:

[ 400.831919] VM fault (0x04, vmid 2) at page 1084047, write from 'CB0'
(0x43423000) (0)
[ 400.831995] radeon 0000:00:01.0: GPU fault detected: 146 0x0be50014
[ 400.831996] radeon 0000:00:01.0: VM_CONTEXT1_PROTECTION_FAULT_ADDR 0x00000000
[ 400.831997] radeon 0000:00:01.0: VM_CONTEXT1_PROTECTION_FAULT_STATUS
0x0400000C

I noticed screen full of those messages while switching screens with alt + ctrl
+ F1-F7.

I'm running AMD APU on a PC: AMD A8-7600 Radeon R7, 10 Compute Cores 4C+6G.

Full bugreport on Archlinux bugtracker: <a href="https://bugs.archlinux.org/task/58874">https://bugs.archlinux.org/task/58874</a>

I don't know if this is enough information, what else I can check?</pre>
        </div>
      </p>


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