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#1 2022-05-03 19:00:28

vejtics
Member
Registered: 2021-08-31
Posts: 4

Completely black screen (no cursor) on boot

Hi everyone,

After months of functioning properly, my Arch started to "black out" during boot. More precisely, the console shows up, but by the time my login manager should appear, the screen goes black, no cursor, not even backlight. Essentially, the computer behaves as if it were turned off, but it is still on (the power indicator lamp stays on). The only thing I can do is hold the power button, which I know is a very risky thing to do. I don't remember previously changing anything about the system, except maybe updating it (I'm not entirely sure if that's when it started happening).

When I boot Arch in single-user mode, during boot it says it's in rescue mode. It prompts me to log into the console and see some logs, and it also gives me the choice to press ctrl-D and continue. After pressing ctrl-D, the login manager displays normally and everything works. I assume it'd be useful to paste those logs here, but I don't know how to copy and paste them before even starting the desktop environment.

If it matters, I use rEFInd to dual-boot Windows 10 and Arch.

Let me know if there is any additional info I should post, and thanks in advance.

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#2 2022-05-03 19:51:03

seth
Member
Registered: 2012-09-03
Posts: 28,813

Re: Completely black screen (no cursor) on boot

https://wiki.archlinux.org/title/Kernel … _KMS_start
Also 3rd link below (though I doubt that's the cause here, but just for good measure)

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#3 2022-05-05 20:02:34

vejtics
Member
Registered: 2021-08-31
Posts: 4

Re: Completely black screen (no cursor) on boot

I did both things you suggested, the issue persists.

Perhaps I should note that I resized the system partition before this happened, but I doubt it's the cause, because it didn't start happening immediately after resizing the partition.

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#4 2022-05-05 20:05:37

seth
Member
Registered: 2012-09-03
Posts: 28,813

Re: Completely black screen (no cursor) on boot

I did both things you suggested

You did rebuild the initramfs and not just edit the config?

Please post a complete system journal of an affected boot  ("sudo journalctl -b -1 | curl -F 'file=@-' 0x0.st" for the previous one)

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#5 2022-05-11 16:44:00

vejtics
Member
Registered: 2021-08-31
Posts: 4

Re: Completely black screen (no cursor) on boot

You did rebuild the initramfs

...actually no, I don't even know how it works. I checked the wiki about initramfs but it never mentions the word "rebuild", so could you tell me how exactly one does that?

I assume I should post the journal only after rebuilding the initramfs.

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#6 2022-05-11 17:06:59

V1del
Forum Moderator
Registered: 2012-10-16
Posts: 16,184

Re: Completely black screen (no cursor) on boot

It does

Wiki wrote:

.

Long story short, you'll need to run

mkinitcpio -P

after editing the config.

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#7 Today 14:20:05

vejtics
Member
Registered: 2021-08-31
Posts: 4

Re: Completely black screen (no cursor) on boot

The following error appears after trying that:

==> Building image from preset: /etc/mkinitcpio.d/linux.preset: 'default'
  -> -k /boot/vmlinuz-linux -c /etc/mkinitcpio.conf -g /boot/initramfs-linux.img
==> ERROR: Unable to write to /boot/initramfs-linux.img
==> Building image from preset: /etc/mkinitcpio.d/linux.preset: 'fallback'
  -> -k /boot/vmlinuz-linux -c /etc/mkinitcpio.conf -g /boot/initramfs-linux-fallback.img -S autodetect
==> ERROR: Unable to write to /boot/initramfs-linux-fallback.img

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#8 Today 14:21:22

seth
Member
Registered: 2012-09-03
Posts: 28,813

Re: Completely black screen (no cursor) on boot

… as root …

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