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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 - [BAT BYT] dmesg WARNING in snd-hda"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=93381">93381</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>[BAT BYT] dmesg WARNING in snd-hda
          </td>
        </tr>

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

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

        <tr>
          <th>Hardware</th>
          <td>Other
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>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>daniel@ffwll.ch
          </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>Yeah this is a small problem with our dmesg filtering, since we match for
(drm|intel|i915), and snd-hda-intel also has that :(

Currently affected machines are byt-nuc (a baytrail). I'll attach full dmesg
shortly.

[  261.127300] snd_hda_intel 0000:00:1b.0: azx_get_response timeout, switching
to polling mode: last cmd=0x201f0500
[  262.131814] snd_hda_intel 0000:00:1b.0: No response from codec, disabling
MSI: last cmd=0x201f0500
[  263.143330] snd_hda_intel 0000:00:1b.0: azx_get_response timeout, switching
to single_cmd mode: last cmd=0x201f0500
[  263.146980] snd_hda_codec_hdmi hdaudioC0D2: HDMI: pin nid 0 not registered
[  263.147730] ------------[ cut here ]------------
[  263.147746] WARNING: CPU: 0 PID: 315 at sound/hda/hdac_i915.c:91
snd_hdac_display_power+0xf1/0x110 [snd_hda_core]()
[  263.147750] Modules linked in: snd_hda_codec_hdmi snd_hda_codec_realtek
snd_hda_codec_generic i915 intel_powerclamp snd_hda_intel(-) coretemp
snd_hda_codec crct10dif_pclmul crc32_pclmul snd_hwdep snd_hda_core lpc_ich
snd_pcm i2c_hid i2c_designware_platform i2c_designware_core r8169 mii
sdhci_acpi sdhci mmc_core
[  263.147790] CPU: 0 PID: 315 Comm: kworker/0:3 Tainted: G     U  W      
4.4.0-rc4-gfxbench+ #1
[  263.147794] Hardware name:
\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff
\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff/DN2820FYK,
BIOS FYBYT10H.86A.0038.2014.0717.1455 07/17/2014
[  263.147803] Workqueue: pm pm_runtime_work
[  263.147807]  ffffffffa00c7391 ffff880074b7bbe8 ffffffff813dfe3c
0000000000000000
[  263.147815]  ffff880074b7bc20 ffffffff810746a1 0000000000000000
ffff8800747e67b0
[  263.147822]  ffff880072bbc188 0000000000000008 ffff880036a22290
ffff880074b7bc30
[  263.147829] Call Trace:
[  263.147837]  [<ffffffff813dfe3c>] dump_stack+0x4e/0x82
[  263.147843]  [<ffffffff810746a1>] warn_slowpath_common+0x81/0xc0
[  263.147847]  [<ffffffff81074795>] warn_slowpath_null+0x15/0x20
[  263.147855]  [<ffffffffa00c6671>] snd_hdac_display_power+0xf1/0x110
[snd_hda_core]
[  263.147862]  [<ffffffffa012939d>] azx_intel_link_power+0xd/0x10
[snd_hda_intel]
[  263.147873]  [<ffffffffa00f930a>] azx_link_power+0x1a/0x30 [snd_hda_codec]
[  263.147880]  [<ffffffffa00c2179>] snd_hdac_link_power+0x29/0x40
[snd_hda_core]
[  263.147889]  [<ffffffffa00f42a6>] hda_codec_runtime_suspend+0x76/0xa0
[snd_hda_codec]
[  263.147897]  [<ffffffffa00f4230>] ? hda_codec_runtime_resume+0x50/0x50
[snd_hda_codec]
[  263.147902]  [<ffffffff8152442d>] __rpm_callback+0x2d/0x70
[  263.147909]  [<ffffffffa00f4230>] ? hda_codec_runtime_resume+0x50/0x50
[snd_hda_codec]
[  263.147914]  [<ffffffff8152448f>] rpm_callback+0x1f/0x80
[  263.147922]  [<ffffffffa00f4230>] ? hda_codec_runtime_resume+0x50/0x50
[snd_hda_codec]
[  263.147926]  [<ffffffff81524978>] rpm_suspend+0x148/0x780
[  263.147931]  [<ffffffff81526526>] pm_runtime_work+0x76/0xc0
[  263.147936]  [<ffffffff8108f3d5>] process_one_work+0x1e5/0x620
[  263.147940]  [<ffffffff8108f339>] ? process_one_work+0x149/0x620
[  263.147945]  [<ffffffff8108f859>] worker_thread+0x49/0x450
[  263.147949]  [<ffffffff8108f810>] ? process_one_work+0x620/0x620
[  263.147953]  [<ffffffff8108f810>] ? process_one_work+0x620/0x620
[  263.147959]  [<ffffffff81095e9a>] kthread+0xea/0x100
[  263.147964]  [<ffffffff8179a6e7>] ? _raw_spin_unlock_irq+0x27/0x50
[  263.147970]  [<ffffffff81095db0>] ? kthread_create_on_node+0x1f0/0x1f0
[  263.147974]  [<ffffffff8179b37f>] ret_from_fork+0x3f/0x70
[  263.147979]  [<ffffffff81095db0>] ? kthread_create_on_node+0x1f0/0x1f0
[  263.147982] ---[ end trace dfabf752a38ef4ee ]---</pre>
        </div>
      </p>
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