Re: Monitor switched off after resume from hibernation

From	Keith Bainbridge <keithrbaugroups@gmail.com>
Newsgroups	linux.debian.user
Subject	Re: Monitor switched off after resume from hibernation
Date	2017-01-06 01:20 +0100
Message-ID	<sWqqd-25X-7@gated-at.bofh.it> (permalink)
References	<sWnsm-8rY-9@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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Ummm, why turn the monitor off first?

I use suspend rather than hibernate, on a macbook 4,1 and just close the
lid.  I get a password screen as soon as I open up.

Keith Bainbridge

0447667468

keithrbaugroups@gmail.com

Sent from my APad

On 6 Jan 2017 08:04, "solitone" <solitone@mail.com> wrote:

> I'm on debian stretch, and my computer is a MacBookPro 12,1. I've recently
> noticed an issue that affect my system when it hibernates.
>
> When the screen is already switched off and then the system hibernates, it
> won't resume correctly later on. Specifically, the monitor will be
> switched off
> again at the end of the resume process.
>
> E.g. I give the following command in order to switch off the monitor:
>
> $ sleep 1 && xset dpms force off
>
> then I close the lid so that my system hibernates. Then I resume the
> system.
> The monitors turns on, as I see the boot loader screen and some boot
> messages.
> But then, when the resume is complete, the screen is switched off again,
> and
> there is no way to turn it on. The only solution is press the power button
> to
> turn off the entire computer.
>
> I get the same issue even when, instead of using the xset command, I wait
> several minutes so that the screen is switched off automatically by KDE's
> power management, and then I hibernate the system.
>
> By contrast, I have no issue if I hibernate when the screen is still on.
> The
> resume works perfectly well. Besides, suspend (to RAM) has no issue either,
> both when the screen is on and when it is off.
>
> I've already reported a bug to the mainteiners of debian kernel. But in the
> meanwhile, as a workaround I'm thinking of using a systemd script that
> forces
> the monitor on just before the system starts hibernating. I've tried with
> "xset dpms force on", however it won't in fact turn on the monitor. Is
> there a
> way to do this?
>
> Thanks & Regards,
>   Davide
>
>

Thread

Monitor switched off after resume from hibernation solitone <solitone@mail.com> - 2017-01-05 22:10 +0100
  Re: Monitor switched off after resume from hibernation Keith Bainbridge <keithrbaugroups@gmail.com> - 2017-01-06 01:20 +0100
    Re: Monitor switched off after resume from hibernation David Wright <deblis@lionunicorn.co.uk> - 2017-01-06 03:00 +0100
      Re: Monitor switched off after resume from hibernation Keith Bainbridge <keithrbaugroups@gmail.com> - 2017-01-06 06:20 +0100
        Re: Monitor switched off after resume from hibernation David Wright <deblis@lionunicorn.co.uk> - 2017-01-06 15:30 +0100
          Re: Monitor switched off after resume from hibernation Stefan Monnier <monnier@iro.umontreal.ca> - 2017-01-06 22:50 +0100
      Re: Monitor switched off after resume from hibernation solitone <solitone@mail.com> - 2017-01-06 22:10 +0100
        Re: Monitor switched off after resume from hibernation David Wright <deblis@lionunicorn.co.uk> - 2017-01-07 05:00 +0100
          Re: Monitor switched off after resume from hibernation solitone <solitone@mail.com> - 2017-01-07 08:20 +0100
            Re: Monitor switched off after resume from hibernation Joe <joe@jretrading.com> - 2017-01-07 10:10 +0100
              Re: Monitor switched off after resume from hibernation solitone <solitone@mail.com> - 2017-01-07 16:10 +0100
              Re: Monitor switched off after resume from hibernation solitone <solitone@mail.com> - 2017-01-07 19:40 +0100
            Re: Monitor switched off after resume from hibernation David Wright <deblis@lionunicorn.co.uk> - 2017-01-07 20:40 +0100
              Re: Monitor switched off after resume from hibernation solitone <solitone@mail.com> - 2017-01-07 21:30 +0100
              Re: Monitor switched off after resume from hibernation solitone <solitone@mail.com> - 2017-01-08 08:10 +0100
                Re: Monitor switched off after resume from hibernation David Wright <deblis@lionunicorn.co.uk> - 2017-01-09 02:10 +0100
                Re: Monitor switched off after resume from hibernation Joel Rees <joel.rees@gmail.com> - 2017-01-09 13:50 +0100
                Re: Monitor switched off after resume from hibernation David Wright <deblis@lionunicorn.co.uk> - 2017-01-09 15:20 +0100
    Re: Monitor switched off after resume from hibernation solitone <solitone@mail.com> - 2017-01-06 07:00 +0100
      Re: Monitor switched off after resume from hibernation Keith Bainbridge <keithrbaugroups@gmail.com> - 2017-01-06 07:30 +0100
        Re: Monitor switched off after resume from hibernation solitone <solitone@mail.com> - 2017-01-06 13:20 +0100
      Re: Monitor switched off after resume from hibernation Charlie Kravetz <cjk@teamcharliesangels.com> - 2017-01-06 15:40 +0100
        Re: Monitor switched off after resume from hibernation solitone <solitone@mail.com> - 2017-01-06 20:50 +0100
          Re: Monitor switched off after resume from hibernation Charlie Kravetz <cjk@teamcharliesangels.com> - 2017-01-06 23:20 +0100
            Re: Monitor switched off after resume from hibernation solitone <solitone@mail.com> - 2017-01-07 08:00 +0100
  Re: Monitor switched off after resume from hibernation Joel Rees <joel.rees@gmail.com> - 2017-01-09 14:10 +0100
    Re: Monitor switched off after resume from hibernation solitone <solitone@mail.com> - 2017-01-09 19:00 +0100
      Re: Monitor switched off after resume from hibernation solitone <solitone@mail.com> - 2017-01-22 14:40 +0100

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