Bug 90531 - [hsw dp mst audio] No sound on DisplayPort (HDMI is OK)
Summary: [hsw dp mst audio] No sound on DisplayPort (HDMI is OK)
Status: CLOSED DUPLICATE of bug 89895
Alias: None
Product: DRI
Classification: Unclassified
Component: DRM/Intel (show other bugs)
Version: unspecified
Hardware: Other All
: medium normal
Assignee: Intel GFX Bugs mailing list
QA Contact: Intel GFX Bugs mailing list
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2015-05-20 07:18 UTC by Marc RECHTE
Modified: 2017-07-24 22:46 UTC (History)
3 users (show)

See Also:
i915 platform: HSW
i915 features: display/DP MST

Attachments
boot log (206.03 KB, text/plain)
2015-05-20 07:18 UTC, Marc RECHTE 		no flags Details
boot log (drm.debug=14) (758.80 KB, text/plain)
2015-05-28 15:42 UTC, Marc RECHTE 		no flags Details
View All

Description Marc RECHTE 2015-05-20 07:18:19 UTC 
Created attachment 115911 [details]
boot log

Hello,

Sound is not carried over the DisplayPort wheras it is on HDMI.

$ aplay -L
null
    Discard all samples (playback) or generate zero samples (capture)
pulse
    PulseAudio Sound Server
default
    Default ALSA Output (currently PulseAudio Sound Server)
hdmi:CARD=HDMI,DEV=0
    HDA Intel HDMI, HDMI 0
    HDMI Audio Output
hdmi:CARD=HDMI,DEV=1
    HDA Intel HDMI, HDMI 1
    HDMI Audio Output
hdmi:CARD=HDMI,DEV=2
    HDA Intel HDMI, HDMI 2
    HDMI Audio Output


$ speaker-test -Dhdmi:CARD=HDMI,DEV=0 -c2

speaker-test 1.0.28

Le périphérique de lecture est hdmi:CARD=HDMI,DEV=0
Les paramètres du flux sont 48000Hz, S16_LE, 2 canaux
Utilisation de 16 octaves de 'pink noise'
La fréquence est 48000Hz (demandée 48000Hz)
L'intervalle de la taille du tampon est de 64 à 1048576
L'intervalle de la taille de la période est de 32 à 524288
Taille max. de tampon 1048576 utilisée
Périodes = 4
was set period_size = 262144
was set buffer_size = 1048576
 0 - Front Left
 1 - Front Right
^C

[NO SOUND]

xorg-x11-drv-intel-2.99.916-3.20141117.fc21.x86_64
Comment 1 Jani Nikula 2015-05-20 08:13:34 UTC 
Please add drm.debug=14 module parameter and attach dmesg again.
Comment 2 Marc RECHTE 2015-05-28 15:42:35 UTC 
Created attachment 116120 [details]
boot log (drm.debug=14)
Comment 3 Marc RECHTE 2015-05-28 15:43:50 UTC 
This is log is now with Fedora 22 (xorg-x11-drv-intel-2.99.917)
Comment 4 Jani Nikula 2015-05-28 17:25:57 UTC 
Audio on DP MST currently does not work.
Comment 5 Jani Nikula 2015-10-23 12:23:44 UTC 

*** This bug has been marked as a duplicate of bug 89895 ***

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