[RTMediaEngineSRV core dumps on Linux Mint 19.3 (Ubuntu 18.04 bionic)]

On 1/26/2022 at 8:53 AM, Thorsten Niehues said:

Where did you get this 2.9.200 Version?

On the download site https://www.citrix.com/downloads/citrix-receiver/additional-client-software/hdx-realtime-media-engine-latest.html

I downloaded the "latest Version" from Mar 6, 2020 - It only says 2.9

But when extracted I see the file citrix-hdx-realtime-media-engine_2.9.0-2330_amd64.deb which is already installed:

apt list |grep -i hdx
citrix-hdx-realtime-media-engine/now 2.9.0-2330 amd64 [installed,local]

Unfortunately I still get these random disconnects:

tail -2 /var/log/kern.log
Jan 26 08:20:45 myPcName kernel: [ 1300.799837] traps: RTMediaEngineSR[5526] general protection fault ip:7fbf563bc33a sp:7fbf4e1f77a0 error:0 in libc-2.31.so[7fbf562e1000+1e7000]
Jan 26 08:39:54 myPcName kernel: [ 2450.017392] traps: RTMediaEngineSR[8463] general protection fault ip:7fd8fca9f33a sp:7fd8f88df7a0 error:0 in libc-2.31.so[7fd8fc9c4000+1e7000]

PS the random disconnects started after installing Citrix 20.12 and some libraries to make Microsoft Teams working... for details see https://discussions.citrix.com/topic/415288-linux-host-teams-on-windows-client-does-not-detect-microphone/

 

ATTENTION as of Jan 31, 2022 the Citrix site for latest Version

https://www.citrix.com/downloads/citrix-receiver/additional-client-software/hdx-realtime-media-engine-latest.html

still holds the out-dated version 2.9.0 use Version 2.9.4 from

https://www.citrix.com/de-de/downloads/citrix-receiver/additional-client-software/hdx-realtime-media-engine-29400.html

 

Also answered here : https://askubuntu.com/q/1390270/230083

[RTMediaEngineSRV core dumps on Linux Mint 19.3 (Ubuntu 18.04 bionic)]

On 2/10/2020 at 11:58 AM, Daniel Szomboti said:

 

If you set the keys on the VDA side, that will pass down to the media engine on linux and tell it to not use logging. No need for local config. 

 

Daniel 

I tried the registry settings disable logging - but the error persists.. any more suggestions?

[RTMediaEngineSRV core dumps on Linux Mint 19.3 (Ubuntu 18.04 bionic)]

On 12/16/2020 at 8:15 PM, Daniel Venema said:

Looks like with the release of "HDX_RealTime_Media_Engine_2.9.200_for_Linux" the problem has been fixed. After upgrading today, I experienced no more sudden Skype call terminations.

Where did you get this 2.9.200 Version?

On the download site https://www.citrix.com/downloads/citrix-receiver/additional-client-software/hdx-realtime-media-engine-latest.html

I downloaded the "latest Version" from Mar 6, 2020 - It only says 2.9

But when extracted I see the file citrix-hdx-realtime-media-engine_2.9.0-2330_amd64.deb which is already installed:

apt list |grep -i hdx
citrix-hdx-realtime-media-engine/now 2.9.0-2330 amd64 [installed,local]

Unfortunately I still get these random disconnects:

tail -2 /var/log/kern.log
Jan 26 08:20:45 myPcName kernel: [ 1300.799837] traps: RTMediaEngineSR[5526] general protection fault ip:7fbf563bc33a sp:7fbf4e1f77a0 error:0 in libc-2.31.so[7fbf562e1000+1e7000]
Jan 26 08:39:54 myPcName kernel: [ 2450.017392] traps: RTMediaEngineSR[8463] general protection fault ip:7fd8fca9f33a sp:7fd8f88df7a0 error:0 in libc-2.31.so[7fd8fc9c4000+1e7000]

PS the random disconnects started after installing Citrix 20.12 and some libraries to make Microsoft Teams working... for details see https://discussions.citrix.com/topic/415288-linux-host-teams-on-windows-client-does-not-detect-microphone/

 

[Linux Host / Teams on Windows client does not detect microphone]

I could fix detecting audio devices in Microsoft Teams by installing libc++1-12 and libunwind-12 on the local linux / ubuntu 20.04 host :

 

curl -fsSL https://apt.llvm.org/llvm-snapshot.gpg.key | sudo apt-key add

sudo add-apt-repository "deb http://apt.llvm.org/focal/ llvm-toolchain-focal-12 main"

sudo apt-get update

sudo apt-get install libc++1-12 libunwind-12

 

Also anwered on https://superuser.com/questions/1701011/citrix-linux-host-win-client-microsoft-team-does-not-detect-audio-devices

[Linux Host / Teams on Windows client does not detect microphone]

Skype for Business is able to do Calls / it detects the microphone

 

Teams however does not detect the microphone so I can not join any meetings..

 

How to fix this??

 

System

• Linux Host : Ubuntu 20.04.3
• Citrix Workplace 21.12 (newest)
• HDX 2.9

 

I tried / made sure so far

• Tried upgrading from Citrix Workplace 21.03 to 21.12 (newest version as of Jan 18 2022)
  -> This resulted in complete loss of HDX connection -  audio was completely gone (Skype for Business & Teams)
• After remove and install HDX via install script (did not uninstall via apt) Skype for business detects the headset again (mic and speaker again -> can to calls)
  Teams however is still unable to detect the microphone
• I also made sure the the software is installed https://docs.citrix.com/en-us/citrix-virtual-apps-desktops/multimedia/opt-ms-teams.html