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I'm Jason, a web applications developer in the San Francisco Bay area.

Ubuntu 9.10 Karmic Koala - VNC resolution limited without monitor

Update 04/23/2010 - I’m not finding a solution to this issue. Sorry. I’ve lost interest.

I recently setup Ubuntu 9.10 on a desktop system, so I could use it as a file server. I’m was able to enable the remote desktop feature for it, which is basically a VNC server.

The issue is that once I disconnected a monitor from the computer and set it up next to my router (plugged directly in), and restarted it, VNC would only work with a maximum resolution of 640x480.

In a forum someone pointed out that this configuration added to /etc/X11/xorg.conf would save the day:

Section "Device"
  Identifier "VNC Device"
  Driver "vesa"

Section "Screen"
  Identifier "VNC Screen"
  Device "VNC Device"
  Monitor "VNC Monitor"
  SubSection "Display"
  Modes "1024x768"

Section "Monitor"
  Identifier "VNC Monitor"
  HorizSync 30-70
  VertRefresh 50-75

I just restarted after my ‘sudo service gdm restart’ command didn’t seem to work. I think this might have something to do with a special Nvidia driver I’m using. Hm…

And I thought this most recent article was giving me the holy grail.

Eh. I’m going to bed now. It’s 3:29 AM. I’ll slay this dragon later perhaps.