second monitor suddenly not detected

[Karl Auer]

On Mon, 2020-09-28 at 00:04 +0200, Liam Proven wrote:
> Create a new account; see if it is affected?

Already done. No change.

> Doesn't it? I found this very quickly:
> https://askubuntu.com/questions/67764/how-to-remove-and-reinstall-gnome-3

That is about how to re-install gnome shell. This problem sems to be
way below gnome-shell. But I will give it a go anyway; perhaps
installing gnome-shell installs the entire video subsystem it needs.

Have you checked your disk for errors with `fsck`?

No - but it's been rebooted a few times, which I thought did a check.
I'll check the check :-)

> > It means I selected GNOME via the cog icon at login, instead of
> > Ubuntu.
> 
> OK. As I said: I do not run Ubuntu with GNOME and so I do not know
> what the options available there are, and you are not helping me here
> by telling me!

Let me be clearer then: I have absolutely no idea what the two options
do in terms of X.org vs Wayland. I'm sorry...

> I *think* from the last time I tried it, a year or 2 back maybe, that
> there were options for:

On my system there are two, and they are called "GNOME" and "Ubuntu".

> The key thing here is to work out if this is connected to Wayland, or
> X.org, or both.

If you have a hint on how I can tell the difference I will do it
immediately and report. But I'll google a bit more too.

Regards, K.


-- 
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Karl Auer (kauer at biplane.com.au)
http://www.biplane.com.au/kauer

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