I have two machines connected via a KVM switch to common keyboard mouse and monitor.
This morning on booting both machines, the mouse did not function but the keyboard and monitor did.
The mouse and Keyboard a PS2 in each case so checked all connection and rebooted both.
Still no mouse activity -
Shut both machines down and gave each an individual mouse each.
The Windows machines worked fine with is own private mouse
But the Linux machine still would not function.
Last evening the Linux mchine crashed and put itself through an lengthy repair/restore routine this morning.
Could this be the problem - I thought PS2 mouse/keyboard operation is MoBo firmware and O/S independent.
Finding hardware error messages?.
Does the KVM have a manual switching button, which might indicate a problem on testing?.
The switch is manual[Belkin].
On boot up this morning Windows is fine [but on its last legs [- overdue for a back up and re install - another story]
Ubuntu was very strange this AM - booted but wanted user name then password
mouse no go, but keyboard OK
Repeatedly entered name then pass word but rejected each time.
Normal is is Password then Authorize
Then the desktop came up.
But then Keyboard and mouse went on strike.
Rebooted and went ibto long strings of what failed and what it could not find.
Currently running the DVD to see if it will find what it is looking for
Otherwise I guess it is start over here too- Not that it matter- it is all experimentation - no data too lose
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