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Re: Up-to-date Bullseye, Power Save turned Samsung T55 Monitor off. Couldn't wake it up

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On Sat, Oct 2, 2021 at 4:46 PM Dan Ritter <dsr@randomstring.org> wrote:

> Kenneth Parker wrote:
> > HP Elitedesk 705 G1.  Bullseye XFCE.
> >
> > I had a timeout set like usual.  Before, I could jiggle the Mouse and
> press
> > the Shift Key and it would wake up, but not today.
> >
> > Fortunately, I was able to power up a Laptop, and SSH into the Elitedesk,
> > and tell it to Shutdown cleanly.  (But, obviously not everyone has this
> > option).
> >
> > (Until I can figure this out, I changed the Power settings to "Never"
> turn
> > off the Monitor).
> >
>
> This is the sort of thing which is often caused by a machine
> being told to go to sleep -- i.e. suspend to ram, suspend to
> disk -- in some way which doesn't let it wake up the video card
> again.
>
> A simple DPMS power off / power on ought to work -- from X, try
>
> xset +dpms
> xset dpms suspend
>

The xset command (version 1.2.4) gave "xset: unknown option suspend".

>
> and wait a moment. It should come back when you tap a key,
> possibly if you wiggle a mouse.
>

One note:  Even though I was unable to wake up the Display, I  *was*  able
to ssh in from my Laptop, so the computer itself wasn't "Suspended".
(Also, I never enable "system sleep mode" on a Desktop computer, since I
enjoy listening to Classical Music while the Display may be off.  If I
would be inclined to [i.e. leave my Apartment], I cleanly shutdown the
system).

>
> If it doesn't, that's valuable info too.
>
> Look in logs to see if anything interesting happened before you
> got to ssh in.
>

I am still working to understand these Logs.  I copied /var/log/messages to
my Home Directory and, since it is huge, used the split command.   Nothing
jumped out.

Many thanks!

Kenneth Parker

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Thread

Up-to-date Bullseye, Power Save turned Samsung T55 Monitor off.  Couldn't wake it up Kenneth Parker <sea7kenp@gmail.com> - 2021-10-02 21:50 +0200
  Re: Up-to-date Bullseye, Power Save turned Samsung T55 Monitor off.  Couldn't wake it up Dan Ritter <dsr@randomstring.org> - 2021-10-02 22:50 +0200
    Re: Up-to-date Bullseye, Power Save turned Samsung T55 Monitor off.  Couldn't wake it up Kenneth Parker <sea7kenp@gmail.com> - 2021-10-03 14:30 +0200
  Re: Up-to-date Bullseye, Power Save turned Samsung T55 Monitor off.  Couldn't wake it up Marko Randjelovic <markoran@eunet.rs> - 2021-10-03 13:10 +0200
    Re: Up-to-date Bullseye, Power Save turned Samsung T55 Monitor off.  Couldn't wake it up Kenneth Parker <sea7kenp@gmail.com> - 2021-10-03 14:50 +0200
      Re: Up-to-date Bullseye, Power Save turned Samsung T55 Monitor off.  Couldn't wake it up Kenneth Parker <sea7kenp@gmail.com> - 2021-10-09 07:20 +0200
        Re: Up-to-date Bullseye, Power Save turned Samsung T55 Monitor off.  Couldn't wake it up Andrei POPESCU <andreimpopescu@gmail.com> - 2021-10-09 09:00 +0200
          Re: Up-to-date Bullseye, Power Save turned Samsung T55 Monitor off.  Couldn't wake it up Kenneth Parker <sea7kenp@gmail.com> - 2021-11-16 06:20 +0100
            Light-Locker (Was Up-to-date Bullseye, Power Save turned ... Monitor  off. ...) Kenneth Parker <sea7kenp@gmail.com> - 2021-11-16 15:00 +0100
              Re: Light-Locker (Was Up-to-date Bullseye, Power Save turned ...  Monitor off. ...) Kenneth Parker <sea7kenp@gmail.com> - 2021-11-16 15:00 +0100
                Re: Light-Locker (Was Up-to-date Bullseye, Power Save turned ...  Monitor off. ...) Kenneth Parker <sea7kenp@gmail.com> - 2021-11-16 15:50 +0100
                Re: Light-Locker (Was Up-to-date Bullseye, Power Save turned ...  Monitor off. ...) l0f4r0@tuta.io - 2021-11-16 19:10 +0100

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