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GUI not working with VNC and Monitor not connected

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mwillems:

--- Quote from: tombert on September 14, 2017, 03:45:21 pm ---I saw that my title was wrong - should read "... and Monitor NOT connected"

Yes exactly. I re-verified again.
If I connect a monitor, I am able to open menus etc. normally through either the keyboard attached to the server or also through VNC.
As soon as I disconnect the monitor and control the server via VNC only, the menus do not work. Other applications still work fine.

thx

--- End quote ---

Bob this was the issue I was seeing last year with my debian server (no menus visible via VNC but everything works fine with a monitor plugged in). 

I hadn't connected the issue to monitors being connected or not, but if I boot my server with no monitor connected I have no issues at all in VNC, but if I connect and then disconnect a monitor I can reproduce the issue tombert is seeing.  This is with a more or less vanilla debian stretch install using x11vnc to reproduce the actual desktop via VNC.

bob:
Thanks, those are great hints, I'll see if I can reproduce it.
I bet it has something to do with the xrandr extension.
Oh yes, one more thing, you are using x11vnc for a server and what for a client??

tombert:

--- Quote from: bob on September 14, 2017, 05:11:59 pm ---Thanks, those are great hints, I'll see if I can reproduce it.
I bet it has something to do with the xrandr extension.
Oh yes, one more thing, you are using x11vnc for a server and what for a client??

--- End quote ---

I am using vino-server.
And TightVNC.

mwillems:

--- Quote from: bob on September 14, 2017, 05:11:59 pm ---Thanks, those are great hints, I'll see if I can reproduce it.
I bet it has something to do with the xrandr extension.
Oh yes, one more thing, you are using x11vnc for a server and what for a client??

--- End quote ---
'

Bob, I'm using x11vnc for the server, and had the same results with tightvnc and tigervnc for clients.

bob:
I just tried this on a MC22 Id.
It's a NUC running Jessie and x11vnc.
Booted gui mode with monitor attached.
Connected with tigervnc from my linux box.

Pulled the monitor cable.
It still works for all menus with both MC23 and MC22.

The Id uses fluxbox which is far simpler than other DM's
Perhaps there is an issue with a particular desktop?

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