Webclient black screen

@ltorabi @Hammad_M I’ve installed isaacsim docker on my ubuntu server and start using ./isaac-sim.headless.websocket.sh --allow-root . However, the web client shows black screen. The log shows iaac sim headless is loaded. What’s the problem?

[13.756s] [ext: omni.kit.window.stats-0.1.0] startup
[13.775s] [ext: omni.isaac.sim.base-2021.2.1] startup
[13.775s] [ext: omni.services.streaming.manager-0.1.1] startup
[13.792s] [ext: omni.kit.livestream.websocket-2.0.17] startup
2022-04-05 13:49:52 [13,752ms] [Warning] [omni.livestream-websocket.plugin] Starting websocket server on :8899 port.
2022-04-05 13:49:52 [13,753ms] [Warning] [omni.livestream-websocket.plugin] WebSocket server listening on port 8899
2022-04-05 13:49:52 [13,753ms] [Warning] [omni.livestream-websocket.plugin] Streaming server started.
[13.823s] [ext: omni.isaac.sim.headless.base-2021.2.1] startup
[13.823s] [ext: omni.services.streamclient.websocket-1.2.1] startup
[13.939s] [ext: omni.isaac.sim.headless.websocket-2021.2.1] startup
[13.939s] app started
[45.876s] Isaac Sim Headless Websocket App is loaded.
[2022-04-05 13:50:30] [connect] WebSocket Connection v13 "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:98.0) Gecko/20100101 Firefox/98.0" / 101
2022-04-05 13:50:30 [51,636ms] [Warning] [omni.livestream-websocket.plugin] Opening connection: "" (1 total)
2022-04-05 13:50:30 [51,794ms] [Warning] [omni.livestream-websocket.plugin]
NVENC: found 2 CUDA device(s):
-------- -- --------------------
  active  0 Tesla V100-PCIE-32GB
          1 Tesla V100-PCIE-32GB
-------- -- --------------------

2022-04-05 13:50:30 [51,938ms] [Warning] [omni.livestream-websocket.plugin] Encode settings:
2022-04-05 13:50:30 [51,938ms] [Warning] [omni.livestream-websocket.plugin] 	bitrate = 32777216
2022-04-05 13:50:30 [51,938ms] [Warning] [omni.livestream-websocket.plugin] 	iframe_interval = 1
[2022-04-05 13:50:44] [control] Control frame received with opcode 8
2022-04-05 13:50:44 [66,062ms] [Warning] [omni.livestream-websocket.plugin] Closing connection: ""
2022-04-05 13:50:44 [66,062ms] [Warning] [omni.livestream-websocket.plugin] Connection closed: "" (0 remaining)
[2022-04-05 13:50:44] [disconnect] Disconnect close local:[1001] remote:[1001]
[2022-04-05 13:50:46] [connect] WebSocket Connection v13 "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:98.0) Gecko/20100101 Firefox/98.0" / 101

Hi. Can you take a look at the browser developer console to see if there is any errors on that websocket client?
It looks like you are using the V100 GPU which may not be supported. I am curious if Isaac Sim is actually running. Can you share the full log please?

Hi @Sheikh_Dawood

I also have problems with the websocket client in Firefox (interface freezes) but not in Chrome/Chromium.
I have tested it on different computers with different versions of both browsers and the results are always the same… in Firefox doesn’t work

Thanks for replying. My gpu is tesla v100. Are only rtx gpus supported?

@toni.sm Can you try running a headless Create with Websocket livestream enabled and see if the same happens please?

@newuhe Yes. An RTX GPU is required to run Isaac Sim.

Hi @Sheikh_Dawood

I have been trying to run a headless Create with Websocket livestream enabled for some time without success :(
After follow the steps described in WebSocket Browser Client — Omniverse Create documentation got the next error

I have searched the forum for solutions (or similars) but so far the error has not been resolved:

I also checked if the port was in use before running create, as you suggested in Omniverse Kit Remote Client show python script visuals - #9 by Sheikh_Dawood

toni@HP-ZBook-Studio-G8:~$ sudo lsof -i -P -n | grep 8111

Please let me know if I can do other tests…

Thanks @toni.sm, it could be an update of Firefox that is causing this issue. I’ll do some tests and file an internal bug.