You are not logged in.

#26 2025-10-02 20:14:41

seth
Member
From: Don't DM me only for attention
Registered: 2012-09-03
Posts: 69,175

Re: screen goes black and turns back into my screen and then black again

No, first and foremost try to boot https://grml.org/ (w/o applying nomodeset) to see whether the hardware causes problems there as well.
Then try to get the edid data from the monitor (see #14) and post that.

Online

#27 2025-10-02 20:20:38

rimurusama
Member
Registered: 2025-09-30
Posts: 19

Re: screen goes black and turns back into my screen and then black again

seth wrote:

No, first and foremost try to boot https://grml.org/ (w/o applying nomodeset) to see whether the hardware causes problems there as well.
Then try to get the edid data from the monitor (see #14) and post that.


i am sorry but what to do with grml?

Offline

#28 2025-10-02 20:22:14

rimurusama
Member
Registered: 2025-09-30
Posts: 19

Re: screen goes black and turns back into my screen and then black again

i forgot to tell you something
i use a converter my monitor uses vga and my pc uses hdmi so i use a converter

Offline

#29 2025-10-02 20:30:19

seth
Member
From: Don't DM me only for attention
Registered: 2012-09-03
Posts: 69,175

Re: screen goes black and turns back into my screen and then black again

i am sorry but what to do with grml?

Boot it? See how it behaves.

i use a converter my monitor uses vga and my pc uses hdmi so i use a converter

Ok, that has just become the most likely problem.
Can you boot the system when explicitly using XGA/1024x768?
https://www.kernel.org/doc/Documentation/fb/modedb.rst

Online

#30 2025-10-02 21:35:57

rimurusama
Member
Registered: 2025-09-30
Posts: 19

Re: screen goes black and turns back into my screen and then black again

like download it and just reboot the system or use it in my usb and do ssh?

it makes me automatically 1024x768 when using nomodeset but i am trying to make it work without setting it 1024x768

Offline

#31 2025-10-03 08:25:39

seth
Member
From: Don't DM me only for attention
Registered: 2012-09-03
Posts: 69,175

Re: screen goes black and turns back into my screen and then black again

grml is a live distro, you can put that on a USB key like the arch iso and boot it the same way.

The point is to try whether modesetting still works when you're only using a XGA output - iffff it's the converter, anything > 1024x768 might not be possible and that's what's this test would show.
If you can run at 1024x768 WITHOUT nomodeset it's extremely likely that the converter is the culprit.

Online

#32 2025-10-03 09:46:59

rimurusama
Member
Registered: 2025-09-30
Posts: 19

Re: screen goes black and turns back into my screen and then black again

ok thanks i will install grml now but do you know the way to run arch at 1024x768?

Offline

#33 2025-10-03 10:25:03

rimurusama
Member
Registered: 2025-09-30
Posts: 19

Re: screen goes black and turns back into my screen and then black again

i tried grml and still it doesn't work without nomodeset

Last edited by rimurusama (2025-10-03 13:35:22)

Offline

#34 2025-10-03 14:01:07

seth
Member
From: Don't DM me only for attention
Registered: 2012-09-03
Posts: 69,175

Re: screen goes black and turns back into my screen and then black again

do you know the way to run arch at 1024x768?

Online

Board footer

Powered by FluxBB