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Re: Black screen.

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On Fri, Nov 15, 2024 at 9:49 PM milton César Disegna de Souza Leite <
miltoncsl@yahoo.com> wrote:

>
> On 15 Nov 2024, at 02:44, Timothy M Butterworth <
> timothy.m.butterworth@gmail.com> wrote:
>
>
>
> 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.
>
>
> Hello Timothy,
>
> Thank you for you answer. I really didn't inform all that it is necessary
> to expose my problem. I had already configure “battery and brightness” how
> you indicated.
>
> What desktop environment are you using?
>
>
> I installed KDE and Gnome but I am using only KDE. I choised login manager
> GDM.
>
>
> Is the external monitor still plugged in?
>
>
> I used external monitor only one time. And it was like I said.
>
>
> How is the external monitor configured: unified, extended or primary?
>
>
> Extended.
>
>
> You say you disabled suspend via grub? Have you tried disabling suspend in
> the BIOS? It will be S2 and S3 in BIOS.
>
>
> Yes, I disabled suspend via grub. The computer's BIOS is very simples (!)
> and it don't have config suspend item available (!!). Or it is hid an I
> don't still found it.
>
>
> When the device suspends I take it that you are not able to wake the
> device properly by pressing the power button?
>
>
> No, without to disable suspend via grub, my laptop turned off by itself
> and when I pressed power button it turned on, it resumes working from the
> point where it stopped, but it does this action indefinitely. I disabled
> suspend via grub and this problem finished. However, when I started it and
> tried to log in or simply I wait, the screen turned off (black screen).
> When I get login system work without problems.
>

Are you getting the blank screen after you login or are you not getting a
login screen at all?

If you are not getting a login screen at all, then it is likely a GDM issue.

If you are getting a login screen and then getting the black screen after
trying to login then it is also likely a GDM issue. Do you have a mouse
pointer?

Try booting into GNOME and see what happens.

Also try switching vitrual consoles, control + Alt + F4 If you get a login
prompt login and then run `startx` to launch a X-11 session.



>
>
>> Enviado do meu iPhone
>>
>
>
> --
> ⢀⣴⠾⠻⢶⣦⠀
> ⣾⠁⢠⠒⠀⣿⡁ Debian - The universal operating system
> ⢿⡄⠘⠷⠚⠋⠀ https://www.debian.org/
> ⠈⠳⣄⠀⠀
>
>
>

-- 
⢀⣴⠾⠻⢶⣦⠀
⣾⠁⢠⠒⠀⣿⡁ Debian - The universal operating system
⢿⡄⠘⠷⠚⠋⠀ https://www.debian.org/
⠈⠳⣄⠀⠀

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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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