Unable to login after upgrade

[Gregory Gamble]

Dear list,

I wonder if you have advice on what to check out.

On my "work" computer, I recently did the upgrade from 18.04 to 20.04
and now have the curious situation of not being able to login at the desktop,
but I'm able to remote login from home.

So far the IT guy has not been able to locate the problem.
Have you some ideas on where to look and what info. I should provide
... might the GRUB file have been over written?
     If so, will a sudo command fix it?

Regards,
Greg Gamble

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