[Bug 101304] [DP] [HSW] No audio on DP

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=101304

--- Comment #5 from Ricardo Madrigal <ricardox.madrigal.maldonado at intel.com> ---
Hello keqiao.

I verified this issue in the same way that you ask, and I did it with this
configuration:

Platform HSD-NUC with drm-tip 4.12.0-rc7+ connected (mDP-DP) to monitor - ASUS
(1920x1080) (audio) -
Platform HSD-NUC with drm-tip 4.12.0-rc7+ connected (mHDMI-HDMI) to monitor -
ASUS (1920x1080) (audio) -

And I had the same result for both test, the audio is unavailable via DP or
HDMI

This is the general configuration. 
=====================================
             Software
======================================
kernel version              : 4.12.0-rc7-drm-tip-ww27-commit-2998b27+
architecture                : x86_64
os version                  : Ubuntu 17.04
os codename                 : zesty
kernel driver               : i915
bios revision               : 4.6
bios release date           : 03/02/2017
hardware acceleration       : disabled
swap partition              : enabled on (/dev/sda2)

======================================
        Graphic drivers
======================================
mesa                        : 17.0.3
modesetting                 : enabled
modesetting compiled for    : 1.19.3 X.Org Video Driver
xorg-xserver                : 1.19.3
libdrm                      : 2.4.81
cairo                       : 1.14.8
intel-gpu-tools (tag)       : intel-gpu-tools-1.18-211-g00ce341b
intel-gpu-tools (commit)    : 00ce341b

======================================
             Hardware
======================================
platform                   : Haswell-Nuc
motherboard id             : D54250WYK
form factor                : Desktop
cpu family                 : Core i5
cpu family id              : 6
cpu information            : Intel(R) Core(TM) i5-4250U CPU @ 1.30GHz
gpu card                   : Intel Corporation Haswell-ULT Integrated Graphics
Controller (rev 09) (prog-if 00 [VGA controller])
memory ram                 : 3.79 GB
max memory ram             : 16 GB
display resolution         : 3520x1080
cpu thread                 : 4
cpu core                   : 2
cpu model                  : 69
cpu stepping               : 1
socket                     : Socket LGA1150
signature                  : Type 0, Family 6, Model 69, Stepping 1
hard drive                 : 223GiB (240GB)
current cd clock frequency : 450000 kHz
maximum cd clock frequency : 450000 kHz
========================================

I hope this information helps.

I remain at your disposal for any questions or comments.

Greetings.

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