No, this is not possible. Virt-manager is just a GUI over libvirt. For now libvirt doesn’t support USB passthrought by port id, only by device id (which changes on each plug) or vendor id.

I tried this, didn’t help.

I added logs to post

I have R9 280

X server isn’t starting

Kernel driver is loaded

# lsmod | grep radeon
radeon               1888256  9
video                  77824  2 amdgpu,radeon
i2c_algo_bit           12288  2 amdgpu,radeon
drm_suballoc_helper    12288  2 amdgpu,radeon
drm_display_helper    266240  2 amdgpu,radeon
drm_ttm_helper         12288  2 amdgpu,radeon
ttm                   102400  3 amdgpu,radeon,drm_ttm_helper
drm_kms_helper        253952  3 drm_display_helper,amdgpu,radeon
drm                   749568  16 gpu_sched,drm_kms_helper,drm_exec,drm_suballoc_helper,drm_display_helper,drm_buddy,amdgpu,radeon,drm_ttm_helper,ttm,amdxcp

I left PostUp as is and didn’t try removing -o))

Why I need a full isolated container? Can’t I just use chroot?

I don’t think I can run native Wayland session from container

Thanks for help. Everything is fixed, read post update

Grayjay is proprietary, so I don’t think it is very good for privacy and freedom