I took a look at the Xorg.0.log.old you attached.
It appears that the host (your computer) is not seeing the monitor via I2C bus,
and that's why it is not able to configure the monitor.
It could be a hardware issue (monitor / cable / mainboard VGA connector).
Before recommending installing the current development tip (OpenChrome DDX
Version 0.6.315), your may want to figure out which one of them might be at
fault.
If you have another computer that has a VGA output, test the monitor and cable
with that one to see if the hardware is working correctly.
** Changed in: xserver-xorg-video-openchrome (Ubuntu)
Assignee: (unassigned) => Brace Computer Laboratory (bracecomputerlab)
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https://bugs.launchpad.net/bugs/1897992
Title:
No VGA video signal after installing pkg and rebooting
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