Resorting to software rendering with 'chromium --disable-gpu' should
work around the problem.

Some information that might help debugging:

1. With
   
   sudo bash -c "echo -n noquiet > /sys/module/apparmor/parameters/audit"
   journalctl -f

   Then starting Chromium, what denials are reported?

2. dpkg -l|grep nvidia

3. journalctl -b --grep='renderer for'

https://download.nvidia.com/XFree86/Linux-x86_64/525.53/README/kms.html

> NVIDIA's DRM KMS support is still considered experimental. It is disabled by 
> default, but can be enabled on suitable kernels with the 'modeset' kernel 
> module parameter. E.g.,
>
> modprobe -r nvidia_drm ; modprobe nvidia_drm modeset=1

Do we have this on?

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https://bugs.launchpad.net/bugs/1967488

Title:
  [nvidia] Chromium stable snap doesn't display anything on Wayland with
  Nvidia as primary GPU

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