T20 DisplayPort connections support audio?

Question

I know it is odd for a server, but I need to connect a TV to the T20 with a DisplayPort to HDMI cable. Picture is fine, but I am not getting audio on the TV. A. Does the T20 pass audio over DP? B. If yes, what is the combination of drivers to get it to work? Thanks

DELL-Josh Cr · Answer

Hi,

You should be able to set the audio output to displayport through windows. You will probably have to enable the Windows audio service as it is disabled by default. You may also need to install the audio driver:http://www.dell.com/support/drivers/us/en/19/DriverDetails/Product/poweredge-t20?driverId=9W89D&osCode=MWS80&fileId=3328172686&languageCode=en&categoryId=AU

smnrock · Answer

Did anyone able to resolve this? Is it possible to audio output to displayport in poweredge t20? I tried installing latest intel 4600 drivers, but my TV in not listed in the playback devices under sound option.

smnrock · Answer

Any dell representatives here, can you please answer the above query? does the t20 allows the audio passthrough over displayport?

DELL-Josh Cr · Answer

Have you installed the Realtek audio codec? http://www.dell.com/support/home/us/en/04/Drivers/DriversDetails?driverId=9W89D&fileId=3328172686&osCode=MWS80&productCode=poweredge-t20&languageCode=EN&categoryId=AU

We have not disabled audio over displayport, however it is not validated to work, only the headphone jack and that is not supported for server applications.

smnrock · Answer

i do have installed the realtek audio drivers... and there is no problem in 3.5mm out. Problem is displayport does not pass through the audio.

https://communities.intel.com/message/218663#218663

3. No HDMI audio output regardless of AV/R connection or reboot. (Reported on Gigabyte* motherboards and Sony* laptops). This issue is still under investigation. For now we are advising users with ANY of the above issues to upgrade both their BIOS to the latest version, as well as their Intel and 3rd party graphics drivers.

vmx · Answer

Same problem here (no audio output on HDMI) but different OS (Linux, I tryied Ubuntu 14.04 and Fedora which worked better on T20). No audio device is listed for Display Port. I don't think there is audio enabled on it.

DELL-Josh Cr · Answer

Does the audio out via the line out jack work? If the audio device gets installed before the video device that could cause issues. Are there any unknown devices showing up?

smnrock · Answer

As i mentioned in the above post, audio through line out/3.5mm does work fine. The problem is with only in hdmi pass through.... There's no unknown devices in the device manager. If you refer the intel forum link which I posted, the intel 4600 graphics does have this option.

BTW my dell studio 1558, hdmi pass through is working fine.

DELL-Josh Cr · Answer

I was able to confirm that the audio over displayport is not a feature that we implemented in the BIOS.

smnrock · Answer

Is there any plan in future to support this?

DELL-Josh Cr · Answer

It does not look like it is something that is planned at this time.

xgrzenio · Answer

hi any new idea? to audio by displayport?

on linux i dont have any hdmi port, only pch

root@syn ~ $ aplay -L
null
    Discard all samples (playback) or generate zero samples (capture)
pulse
    PulseAudio Sound Server
default:CARD=PCH
    HDA Intel PCH, ALC3220 Analog
    Default Audio Device
sysdefault:CARD=PCH
    HDA Intel PCH, ALC3220 Analog
    Default Audio Device
front:CARD=PCH,DEV=0
    HDA Intel PCH, ALC3220 Analog
    Front speakers
surround21:CARD=PCH,DEV=0
    HDA Intel PCH, ALC3220 Analog
    2.1 Surround output to Front and Subwoofer speakers
surround40:CARD=PCH,DEV=0
    HDA Intel PCH, ALC3220 Analog
    4.0 Surround output to Front and Rear speakers
surround41:CARD=PCH,DEV=0
    HDA Intel PCH, ALC3220 Analog
    4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=PCH,DEV=0
    HDA Intel PCH, ALC3220 Analog
    5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=PCH,DEV=0
    HDA Intel PCH, ALC3220 Analog
    5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=PCH,DEV=0
    HDA Intel PCH, ALC3220 Analog
    7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
dmix:CARD=PCH,DEV=0
    HDA Intel PCH, ALC3220 Analog
    Direct sample mixing device
dsnoop:CARD=PCH,DEV=0
    HDA Intel PCH, ALC3220 Analog
    Direct sample snooping device
hw:CARD=PCH,DEV=0
    HDA Intel PCH, ALC3220 Analog
    Direct hardware device without any conversions
plughw:CARD=PCH,DEV=0
    HDA Intel PCH, ALC3220 Analog
    Hardware device with all software conversions
root@syn ~ $ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: ALC3220 Analog [ALC3220 Analog]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
root@syn ~ $ uname -a
Linux syn.8px.pl 3.15.7-031507-generic #201407281235 SMP Mon Jul 28 16:37:21 UTC 2014 x86_64 GNU/Linux

MoonspiriT · Answer

Could you ask to implement this function? Even it is a server machine, this function is still useful.

xgrzenio · Answer

i only need to use displaport audio via alsa.

in bios audio is enable but it is only analog signal.

some photo my server:)

http://pronas.pl/dell-t20-t7022.html

i use t20 as nas and media center with debian and xbmc, but now i use nvidia gefroce for hdmi audio :/

rondadon · Answer

Man. That is really sad, that the DP doesent transport an Audio stream.

I wish DELL could implement this into the Bios. I also need Audio (bit stream) through DisplayPort!

Is there any chance that it will be considered for the next bios upgrade?!

Thanks and best regards!

Ron

PowerEdge Hardware General

T20 DisplayPort connections support audio?

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