[Bug 101314] [DP][SKL] Auido process is lost after hotplug event through MST dongle

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=101314

Elio <elio.martinez.monroy at intel.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[DP][SKL] Auido process is  |[DP][SKL] Auido process is
                   |lost after hotplug event    |lost after hotplug event
                   |                            |through MST dongle
      i915 platform|                            |SKL
      i915 features|                            |display/audio, display/DP,
                   |                            |display/DP MST

--- Comment #1 from Elio <elio.martinez.monroy at intel.com> ---
Description:

Audio process is lost after performing a hotplug event on the MST dongle in DP.

Configuration:

======================================
             Hardware
======================================
platform                   : SKL Canyon
motherboard id             : NUC6i7KYB
form factor                : Desktop
cpu family                 : Core i7
cpu family id              : 6
cpu information            : Intel(R) Core(TM) i7-6770HQ CPU @ 2.60GHz
gpu card                   : Intel Corporation Iris Pro Graphics 580 (rev 09)
(prog-if 00 [VGA controller])
memory ram                 : 31.31 GB
max memory ram             : 32 GB
cpu thread                 : 8
cpu core                   : 4
cpu model                  : 94
cpu stepping               : 3
socket                     : Other
signature                  : Type 0, Family 6, Model 94, Stepping 3
hard drive                 : 223GiB (240GB)
current cd clock frequency : 450000 kHz
maximum cd clock frequency : 675000 kHz
displays connected         : DP-5
======================================
        Graphic drivers
======================================
modesetting                 : modesetting_drv.so
xorg-xserver                : 1.19.3
libdrm                      : 2.4.81
Aborted (core dumped)
cairo                       : 1.14.8
xserver                     : X.Org X Server 1.19.99.1
intel-gpu-tools (tag)       : intel-gpu-tools-1.18-211-g00ce341b
intel-gpu-tools (commit)    : 00ce341b

Steps to reproduce:

1. Connect a DP monitor, less than 4k  audio capable to your MST dongle
2. Boot up and login with your credentials in to UI
3. Open a terminal and start playing an audio file $ aplay <file>
4. During playback unplug DP cable from MST hub
5. Plug back DP cable


Expected results:

The audio should pause during unplug/plug event without closing audio thread

Actual Result:

Audio process is lost , closing terminal.

Attaching dmesg

-- 
You are receiving this mail because:
You are on the CC list for the bug.
You are the assignee for the bug.
You are the QA Contact for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.freedesktop.org/archives/intel-gfx-bugs/attachments/20170606/e976c051/attachment.html>