Black screen in GUI mode and in text mode

konstantin.m · 2020-11-01 00:54:12

Hello everyone.

Here's my problem(long version):

After last update `pacman -Suy` i've got black screen. The very first thing i thought that it was because of notoriously nvidia drivers (390.138, got them from aur) and that is the usual thing. But then something strange had happened. I rebooted into text mode (like i've done many times before by adding `3` to the Kernel command line parameters) and i've got black screen again(it was the first time for 10+ years of using linux that i've got a black screen in text mode). It was strange but i thought i can cope with it, because for cases like that i have several systems on my machine (windows 10 and opensuse tumbleweed, besides archlinux). So i rebooted again to the opensuse system(which i updated last time a while ago and i was sure that it is bootable, because i booted in this system after last update and everything worked as expected) and (guess what) i've got black screen in this system too! That was the moment wen things become scary. So my last hope was windows and it booted normally! From that i think this is not the hardware issue. And, for the first time of my linux experience, i have no ideas how to solve this problem.

Short version:

Three OSs installed on the same disk, layout is roughly like that:
[mbr]
[unencrypted windows]
[unencrypted ntfs partition]
[luks encrypted boot] (which is shared between archlinux and opensuse)
[luks encrypted archlinux]
[luks encrypted opensuse]
[luks encrypted home] (which is shared between archlinux and opensuse)
[luks encrypted swap] (which is shared between archlinux and opensuse)

it worked for me for last 1.5 years(until last update)

- update from linux-kernel-5.9.1 to linux-kernel-5.9.2
- got black screen in gui mode
- got black screen in text mode
- got black screen on different linux(opensuse tumbleweed) system on the same machine
- windows booted normally(so i assume that it's not a hardware issue)

additional information:

I was able to boot to textmode and even though i didn't see anything on my display i was able to login and create a text file on the ntfs partition by using the command `echo 13 > /mnt/ntfs/fword.txt`.

At this point i have no idea what i should do to rescue my system.

Last edited by konstantin.m (2020-11-01 00:54:50)

seth · 2020-11-01 07:46:04

Two different OS losing framebuffer control at the same time is a pretty unlikely coincidence, so
=> start by disabling windows fast boot (link in my signature)

If you think believe it's disabled, double check on that. Windows likes to undo that because apparently they consider users to be stupid…

Arch Linux

#1 2020-11-01 00:54:12

Black screen in GUI mode and in text mode

#2 2020-11-01 07:46:04

Re: Black screen in GUI mode and in text mode

Board footer