Hi Clive,
> > > Also on close down 3 files listed again prior to switch off.
> >
> > Could it be they're on the first virtual terminal, VT1, which is
> > used for console messages whereas you're normally sat on VT7 for the
> > graphical interface? As part of shutting down, graphics are
> > stopped, and you might be being fleetingly switched to VT1.
...
> ctrl+alt+f1 lost mouse
> ctrl+f7 mouse back
The idea was that switching to VT1, which isn't graphics so the mouse is
lost, would show left-over text from booting which may include the three
files which are listed fleetingly when you shut down. But if the text
you saw didn't look relevant then I guess it must be printed as part of
shutting down.
Logged in as normal, you could try ‘sudo -i systemctl --failed’
to see if that shows any problems with systemd's units. If all's well,
then ‘0 loaded units listed’ is shown in red.
Or soon after one of these momentary screen blanks, you could see if
systemd's journal lists anything in the last couple of minutes which is
relevant with
sudo -i journalctl -S '2 minutes ago'
The idea is two minutes is far back enough to be before the blanking.
If you go back too far then you may have more uninteresting ‘noise’ to
wade through.
The output of these two commands will tell the list what graphics
hardware you have.
lspci -vn | grep -i vga
lspci -v | grep -i vga
Lastly, there seem to be lots of complaints from Mint 22 users of
a similar issue. Their struggles may help. Though which depends on the
graphics hardware.
https://forums.linuxmint.com/viewtopic.php?p=2552593
https://forums.linuxmint.com/viewtopic.php?t=427916
--
Cheers, Ralph.
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