Failed installation of Isaac Sim: GLXBadFBConfig

I have a fresh Ubuntu 20.04 installation running nvidia drivers 515.48.07 with CUDA Version: 11.7. I am using 2 Quadro RTX 6000 graphic cards. I installed Omniverse, Nucleus and Cache successfully, but the installation of Isaac Sim failed with the following error:

Error occurred during installation of Isaac Sim: Command failed: “/.local/share/ov/pkg/isaac_sim-2022.1.0/”
X Error of failed request: GLXBadFBConfig
Major opcode of failed request: 149 (GLX)
Minor opcode of failed request: 0 ()
Serial number of failed request: 189
Current serial number in output stream: 189
2022-08-01 11:47:41 [7,436ms] [Error] [omni.core.ITypeFactory] ITypeFactory must not be destructed post-main. plugins will not be unloaded.
/.local/share/ov/pkg/isaac_sim-2022.1.0/ line 17: 411445 Segmentation fault (core dumped) ${SCRIPT_DIR}/

My OpenGL Version is:

glxinfo | grep “OpenGL version”
OpenGL version string: 3.1 Mesa 21.2.6

Are there any requirements on the OpenGL version? And how can I update OpenGL?
Thank you and kind regards

OpenGL version string: 3.1 Mesa
Means you’re using software rendering.
Are you running from remote?

Ah, yes I am using FastX as a remote control. Is that the problem?

Yes, it uses a virtual Xserver running on the cpu, not an Xserver running on a real gpu. Please start an Xserver on the nvidia gpu, then connect to it using e.g. x11vnc/vnc0server