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Re: Black screen.

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On Thu, Nov 14, 2024 at 11:52 PM milton César Disegna de Souza Leite <
miltoncsl@yahoo.com> wrote:

>
>
> Hello,
>
> I recently installed Debian 12.8 on a laptop with an ONKYO motherboard
> with an i5 M450 processor. With Debian and any GNU/Linux that I had
> previously installed (Fedora and Kubuntu), there was a problem with the
> suspend resource. The laptop turns off by itself and only it starts working
> again when I turn it on, it resumes working from the point where it
> stopped, but it does this action indefinitely. I solved this problem via
> GRUB by disabling suspend. After that, the installation went on normally.
> However, when I started it and tried to log in, the screen turned off. If I
> had already selected a user and entered the password, even with the screen
> off, I was logged in and I used the system as that user which it works
> without any problems. Another way to go back to the login screen is to
> switch to a prompt screen and return to graphical mode, but this is only a
> paleative since it quickly returns to the previous situation. One thing I
> noticed (and it may have nothing to do with it) is that this behavior
> started happening after I connected a monitor to the laptop and switched
> the screen and at a certain point the screen kept in black every now and
> then. What am I doing wrong and how can I solve this problem?
>

I have Debian with KDE running just fine on an external monitor. When I
need to use my webcam I switch the display configuration to unified output
and the same image is displayed on both monitors. I have KDE configured to
not suspend when the lid is closed if a monitor is connected. Also under
battery and brightness I have "manually block sleep and screen locking"
checked.

What desktop environment are you using?

Is the external monitor still plugged in?

How is the external monitor configured: unified, extended or primary?

You say you disabled suspend via grub? Have you tried disabling suspend in
the BIOS? It will be S2 and S3 in BIOS.

When the device suspends I take it that you are not able to wake the device
properly by pressing the power button?


> Enviado do meu iPhone
>


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Thread

Black screen. milton César Disegna de Souza Leite <miltoncsl@yahoo.com> - 2024-11-15 01:40 +0100
  Re: Black screen. Timothy M Butterworth <timothy.m.butterworth@gmail.com> - 2024-11-15 06:50 +0100
    Re: Black screen. Timothy M Butterworth <timothy.m.butterworth@gmail.com> - 2024-11-16 07:20 +0100
      Re: Black screen. Timothy M Butterworth <timothy.m.butterworth@gmail.com> - 2024-11-20 06:00 +0100

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