Launch Desktop issue: Could not connect to session bus

When the “Launch Desktop” is clicked, getting message in VNC window “Could not connect to session bus: Failed to connect to /tmp/dbus-: Connection refused”. Then after clicking Close on that message, get: “Could not acquire name on session bus”.

Everything used to work fine. Most recent change was adding GPUs to the machines. Disk space is good on the machines. I didn’t see any obvious issues in messages/dmesg. Verified I can still run the mate desktop using ssh -X. Any advice on where to look?

Wow, dodged an obscure bullet there. Conda’s dbus package broke it…

sudo /opt/anaconda/bin/conda uninstall dbus

:triumph: Bad conda!!!

h/t https://github.com/TigerVNC/tigervnc/issues/592#issuecomment-507488917