Bug 98018 - Audio-over-DisplayPort stops when screen blanks
Summary: Audio-over-DisplayPort stops when screen blanks
Status: NEW
Alias: None
Product: xorg
Classification: Unclassified
Component: Driver/intel (show other bugs)
Version: 7.7 (2012.06)
Hardware: x86-64 (AMD64) Linux (All)
: medium minor
Assignee: Chris Wilson
QA Contact: Intel GFX Bugs mailing list
Depends on:
Reported: 2016-10-02 18:42 UTC by Andreas Kloeckner
Modified: 2016-10-02 18:42 UTC (History)
0 users

See Also:
i915 platform:
i915 features:


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Description Andreas Kloeckner 2016-10-02 18:42:43 UTC
Audio-over-DP works like a charm. Unfortunately, when the screen blanks, the audio stops, which makes the feature somewhat less valuable than it could be. Is there a possibility of keeping the audio connection alive while still blanking the screen?

FWIW, this happens to me with a number of Dell monitors (with a P2715Q the one I'm currently sitting in front of), connected via DP. I'm using Broadwell hardware with the xserver-xorg-modesetting DDX.

-- System Information:
Debian Release: stretch/sid
  APT prefers testing
  APT policy: (990, 'testing'), (500, 'stable-updates'), (500, 'unstable'), (500, 'stable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.6.0-1-amd64 (SMP w/4 CPU cores)
Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages xserver-xorg-core depends on:
ii  keyboard-configuration    1.147
ii  libaudit1                 1:2.6.6-1
ii  libc6                     2.24-3
ii  libdbus-1-3               1.10.10-1
ii  libdrm2                   2.4.70-1
ii  libegl1-mesa              12.0.3-1
ii  libepoxy0                 1.3.1-1
ii  libgbm1                   12.0.3-1
ii  libgcrypt20               1.7.3-1
ii  libgl1-mesa-glx [libgl1]  12.0.3-1
ii  libpciaccess0             0.13.4-1
ii  libpixman-1-0             0.34.0-1
ii  libselinux1               2.5-3
ii  libsystemd0               231-4
ii  libudev1                  231-4
ii  libxau6                   1:1.0.8-1
ii  libxdmcp6                 1:1.1.2-1.1
ii  libxfont1                 1:1.5.2-1
ii  libxshmfence1             1.2-1
ii  udev                      231-4
ii  xserver-common            2:1.18.4-2

Versions of packages xserver-xorg-core recommends:
ii  libgl1-mesa-dri  12.0.3-1
ii  libpam-systemd   231-4

Versions of packages xserver-xorg-core suggests:
ii  xfonts-100dpi    1:1.0.4+nmu1
ii  xfonts-75dpi     1:1.0.4+nmu1
ii  xfonts-scalable  1:1.0.3-1.1

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