VNC SERVER CLOSING UNEXPECTEDLY

[d4x3d]

vncserver

Warning: localhost.localdomain:1 is taken because of /tmp/.X11-unix/X1
Remove this file if there is no X server localhost.localdomain:1

Warning: localhost.localdomain:1 is taken because of /tmp/.X1-lock
Remove this file if there is no X server localhost.localdomain:1

Warning: localhost.localdomain:2 is taken because of /tmp/.X11-unix/X2
Remove this file if there is no X server localhost.localdomain:2

Warning: localhost.localdomain:2 is taken because of /tmp/.X2-lock
Remove this file if there is no X server localhost.localdomain:2

New Xtigervnc server 'localhost.localdomain:3 (ubuntu)' on port 5903 for display :3.
Use xtigervncviewer -SecurityTypes VncAuth -passwd /tmp/tigervnc.S4Zde4/passwd :3 to connect to the VNC server.

=================== tail /home/ubuntu/.vnc/localhost.localdomain:3.log ===================
The XKEYBOARD keymap compiler (xkbcomp) reports:

Warning: Could not resolve keysym XF86CameraAccessEnable
Warning: Could not resolve keysym XF86CameraAccessDisable
Warning: Could not resolve keysym XF86CameraAccessToggle
Warning: Could not resolve keysym XF86NextElement
Warning: Could not resolve keysym XF86PreviousElement
Warning: Could not resolve keysym XF86AutopilotEngageToggle
Warning: Could not resolve keysym XF86MarkWaypoint
Warning: Could not resolve keysym XF86Sos
Warning: Could not resolve keysym XF86NavChart
Warning: Could not resolve keysym XF86FishingChart
Warning: Could not resolve keysym XF86SingleRangeRadar
Warning: Could not resolve keysym XF86DualRangeRadar
Warning: Could not resolve keysym XF86RadarOverlay
Warning: Could not resolve keysym XF86TraditionalSonar
Warning: Could not resolve keysym XF86ClearvuSonar
Warning: Could not resolve keysym XF86SidevuSonar
Warning: Could not resolve keysym XF86NavInfo
Errors from xkbcomp are not fatal to the X server
[mi] mieq: warning: overriding existing handler (nil) with 0x30001e0ec0 for event 2
[mi] mieq: warning: overriding existing handler (nil) with 0x30001e0ec0 for event 3
The XKEYBOARD keymap compiler (xkbcomp) reports:
Warning: Could not resolve keysym XF86CameraAccessEnable
Warning: Could not resolve keysym XF86CameraAccessDisable
Warning: Could not resolve keysym XF86CameraAccessToggle
Warning: Could not resolve keysym XF86NextElement
Warning: Could not resolve keysym XF86PreviousElement
Warning: Could not resolve keysym XF86AutopilotEngageToggle
Warning: Could not resolve keysym XF86MarkWaypoint
Warning: Could not resolve keysym XF86Sos
Warning: Could not resolve keysym XF86NavChart
Warning: Could not resolve keysym XF86FishingChart
Warning: Could not resolve keysym XF86SingleRangeRadar
Warning: Could not resolve keysym XF86DualRangeRadar
Warning: Could not resolve keysym XF86RadarOverlay
Warning: Could not resolve keysym XF86TraditionalSonar
Warning: Could not resolve keysym XF86ClearvuSonar
Warning: Could not resolve keysym XF86SidevuSonar
Warning: Could not resolve keysym XF86NavInfo
Errors from xkbcomp are not fatal to the X server
Terminated
X connection to :3 broken (explicit kill or server shutdown).

Fri Nov 22 17:10:48 2024
ComparingUpdateTracker: 0 pixels in / 0 pixels out

Fri Nov 22 17:10:49 2024
ComparingUpdateTracker: (1:nan ratio)
Killing Xtigervnc process ID 27629... success!

Session startup via '/etc/X11/Xtigervnc-session' cleanly exited too early (< 3 seconds)!

Maybe try something simple first, e.g.,
tigervncserver -xstartup /usr/bin/xterm
The X session cleanly exited!
The Xtigervnc server cleanly exited!