failed to EGL with glad.

[xiaofeifei-1]

systerm: Ubuntu-20.04
GPU: rtx2080Ti

when runing training.py, there is an error:

[2024-08-04 17:45:44,106][calvin_agent.datasets.base_dataset][INFO] - finished loading dataset
LOCAL_RANK: 0 - CUDA_VISIBLE_DEVICES: [0]

  | Name               | Type                   | Params
--------------------------------------------------------------
0 | perceptual_encoder | ConcatEncoders         | 174 K 
1 | plan_proposal      | PlanProposalNetwork    | 13.9 M
2 | plan_recognition   | PlanRecognitionNetwork | 36.0 M
3 | visual_goal        | VisualGoalEncoder      | 4.4 M 
4 | language_goal      | LanguageGoalEncoder    | 5.1 M 
5 | action_decoder     | LogisticPolicyNetwork  | 13.8 M
--------------------------------------------------------------
73.2 M    Trainable params
0         Non-trainable params
73.2 M    Total params
146.424   Total estimated model params size (MB)
Sanity Checking: 0it [00:00, ?it/s]pybullet build time: Nov 28 2023 23:51:11
[2024-08-04 17:45:46,190][calvin_agent.wrappers.calvin_env_wrapper][INFO] - EGL_DEVICE_ID 0 <==> CUDA_DEVICE_ID 0
argv[0]=--width=200
argv[1]=--height=200
[2024-08-04 17:45:46,261][calvin_env.envs.play_table_env][INFO] - Loading EGL plugin (may segfault on misconfigured systems)...
failed to EGL with glad.
/home/xxx/anaconda3/envs/calvin_venv/lib/python3.8/multiprocessing/resource_tracker.py:216: UserWarning: resource_tracker: There appear to be 8 leaked shared_memory objects to clean up at shutdown
  warnings.warn('resource_tracker: There appear to be %d '

[xiaofeifei-1]

calvin/calvin_env/egl_check$ python list_egl_options.py
----------Default-------------
Starting EGL query
Loaded EGL 1.5 after reload.
GL_VENDOR=NVIDIA Corporation
GL_RENDERER=NVIDIA GeForce RTX 2080 Ti/PCIe/SSE2
GL_VERSION=3.3.0 NVIDIA 535.183.01
GL_SHADING_LANGUAGE_VERSION=3.30 NVIDIA via Cg compiler
Completeing EGL query
b'EGL device choice: -1 of 4.\n'
number of EGL devices: 4
----------Option #1 (id=0)-------------
Starting EGL query
EGL device choice: 0 of 4 (from EGL_VISIBLE_DEVICE)
Loaded EGL 1.5 after reload.
GL_VENDOR=NVIDIA Corporation
CUDA_DEVICE=0
GL_RENDERER=NVIDIA GeForce RTX 2080 Ti/PCIe/SSE2
GL_VERSION=3.3.0 NVIDIA 535.183.01
GL_SHADING_LANGUAGE_VERSION=3.30 NVIDIA via Cg compiler
Completeing EGL query

----------Option #2 (id=1)-------------
Starting EGL query
EGL device choice: 1 of 4 (from EGL_VISIBLE_DEVICE)
libEGL warning: DRI2: failed to create dri screen
libEGL warning: DRI2: failed to create dri screen
eglInitialize() failed with error: 3008

----------Option #3 (id=2)-------------
Starting EGL query
EGL device choice: 2 of 4 (from EGL_VISIBLE_DEVICE)
Loaded EGL 1.5 after reload.
GL_VENDOR=Intel
GL_RENDERER=Mesa Intel(R) UHD Graphics 630 (CFL GT2)
GL_VERSION=4.6 (Core Profile) Mesa 21.2.6
GL_SHADING_LANGUAGE_VERSION=4.60
Completeing EGL query

----------Option #4 (id=3)-------------
Starting EGL query
EGL device choice: 3 of 4 (from EGL_VISIBLE_DEVICE)
Loaded EGL 1.5 after reload.
GL_VENDOR=Mesa/X.org
GL_RENDERER=llvmpipe (LLVM 12.0.0, 256 bits)
GL_VERSION=4.5 (Core Profile) Mesa 21.2.6
GL_SHADING_LANGUAGE_VERSION=4.50
Completeing EGL query

What can I do to solve "failed to EGL with glad"?

[pranavgundewar]

I am facing same error

[AddASecond]

If you want to render in headless mode, make sure $DISPLAY environment variable is unset, otherwise you might have error Failed to EGL with glad, because EGL is sensitive to $DISPLAY environment variable.
unset $DISPLAY or unset DISPLAY

[sb93]

Although I see the 'libEGL' libraries, I am still facing the same error even when I run 'list_egl_options.py' for verification. I have seen in other places that the 'libEGL_nvidia.so*' libraries are also needed. Is that the case?

System: Ubuntu 20.04 (WSL)
GPU: RTX 8000