I have a ubuntu 22.04 LTS system with the following setup: I have a Systemd unit with Socket Activation, basically the following:
[Service]
ExecStart=-/usr/bin/Xvnc -inetd -query localhost -geometry 1920x1080 -once -SecurityTypes=None
User=nobody
StandardInput=socket
StandardError=syslog
Backed by gdm with the following custom config:
[daemon]
WaylandEnable=false
[security]
DisallowTCP=false
[xdmcp]
Enable=true
MaxSessions=40
DisplaysPerHost=10
This used to work fine until a couple of days ago. Now all I get is a black screen when connecting though. Does anyone have an idea where to look to get this working again?