Logout causing black screen with blinking underscore | Arch Linux Community | Page 1

harsh harbor Apr 23, 2025, 9:28 PM

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Logging out from kde goes to a black screen with blinking cursor.

I can access tty.

trim atlas Apr 23, 2025, 9:34 PM

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Yo yo

harsh harbor Apr 23, 2025, 9:34 PM

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Yo

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I'm in tty

I can reboot and get into a normal desktop session if that's better tho

trim atlas Apr 23, 2025, 9:36 PM

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TTY is fine

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Which display manager are you using?

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Check it's status systemctl status

harsh harbor Apr 23, 2025, 9:37 PM

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Sddm

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Running and enabled

trim atlas Apr 23, 2025, 9:38 PM

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journalctl -u sddm --since "1 hour ago"

harsh harbor Apr 23, 2025, 9:39 PM

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rn_image_picker_lib_temp_16110692-a0e8-4826-840c-1430780ddc71.jpg

trim atlas Apr 23, 2025, 9:41 PM

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journalctl -b -1

harsh harbor Apr 23, 2025, 9:42 PM

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There's pages and pages

trim atlas Apr 23, 2025, 9:42 PM

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Lol

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Any errors

harsh harbor Apr 23, 2025, 9:43 PM

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Duplicate entries in fstab, I'll fix that I see now.

trim atlas Apr 23, 2025, 9:43 PM

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Any display manager crashing?

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sddm-helper crashed

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nvidia kerne; module not fount

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kernel*

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xorg crashed / wayland session terminated

harsh harbor Apr 23, 2025, 9:44 PM

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I fucked up installing, genfstab'd twice.

I'll wipe it and generate a fresh one

trim atlas Apr 23, 2025, 9:46 PM

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Ok, let me know if you need any help

harsh harbor Apr 23, 2025, 9:47 PM

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Ntpd service failed to start

Looking for other errors one sec, had to let my dog out lol

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rn_image_picker_lib_temp_d4d456ab-23d4-415b-94b8-b3ea5de34605.jpg

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rn_image_picker_lib_temp_27fa537c-5515-48b9-8c66-75d3335aec58.jpg

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rn_image_picker_lib_temp_a34bc5af-ecce-4116-a870-7e117f357403.jpg

trim atlas Apr 23, 2025, 9:51 PM

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ooooh

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nice

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Failed to read display number from pipe

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Attempt 2 ... on vt 2 failed

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Could not start Display server on vt 2

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This confirms your exact issue

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After stopping the user session, SDDM attempts to restart the display server

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Then you've got some KWin input handling bug/error

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nvidia-gpu i2c timeout error

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org_kde_powerdevil (KDE’s power management daemon) is failing to access /dev/i2c-8

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FAT-fs (nvme0n1p1): Volume was not properly unmounted - /boot

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sudo pacman -Syu

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Are you using a custom kernel by chance?

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If so you'll need nvidia-dkms

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But let's reinstall the driver and ensure it's configured properly

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sudo pacman -S nvidia nvidia-utils

harsh harbor Apr 23, 2025, 10:04 PM

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trim atlas Are you using a custom kernel by chance?

I just have all the kernels installed. Linux, linux-lts, linux-hardened, and linux-zen. Just for fun.

I use zen tho.

I used nvidia-open as that's what the wiki recommended. But I'll install just nvidia instead

trim atlas Apr 23, 2025, 10:06 PM

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sudo mkinitcpio -P After you've removed nvidia-open and installed nvidia

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Oh btw did Syu pick anything up?

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nvidia, sddm, kde?

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sudo nano /etc/default/grub
Add nvidia-drm.modeset=1 to GRUB_CMDLINE_LINUX_DEFAULT

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sudo grub-mkconfig -o /boot/grub/grub.cfg

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And that should honestly fix the SDDM logout restart failure

harsh harbor Apr 23, 2025, 10:15 PM

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Rebooting and testing 🤞

harsh harbor Apr 23, 2025, 11:00 PM

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Now I'm having fstab issues..

I'm in the live environment.

I open my encrypted container, mount the partitions in my LVM, I wiped my fstab clean, mounted the partitions.. genfstab and boot and it won't freaking work..

trim atlas Apr 23, 2025, 11:06 PM

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Oh shoot, well now we are in for it

harsh harbor Apr 23, 2025, 11:08 PM

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rn_image_picker_lib_temp_a28cc8fb-2fa3-4531-aaef-e1643a10331d.jpg

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Nah it should be simple

trim atlas Apr 23, 2025, 11:09 PM

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Do you need my help or you got it?

harsh harbor Apr 23, 2025, 11:11 PM

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Idk 😅

I'm trying the steps again..

Reboot into live environment.
Open container, mount partitions, clear fstab.
Gen fstab, re-config grub just in case, reboot
Profit

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rn_image_picker_lib_temp_8739041c-082e-4e46-bdad-7c592658d4b7.jpg

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I think I figured it out now, root= is the wrong path is grub config

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Hey hey 👏 🙂

trim atlas Apr 23, 2025, 11:21 PM

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Yo yo

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You get the fstab?

harsh harbor Apr 23, 2025, 11:22 PM

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I was just celebrating 🥳 but I spoke to soon

trim atlas Apr 23, 2025, 11:22 PM

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Darn give me a minute we will fix it.

harsh harbor Apr 23, 2025, 11:22 PM

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Now it's just stuck like this

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Blinking cursor, I can get into tty

sullen phoenix Apr 23, 2025, 11:26 PM

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harsh harbor Blinking cursor, I can get into tty

Can you start a desktop session just for fun? What’s your DE?

harsh harbor Apr 23, 2025, 11:26 PM

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KDE

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Let's see on sec

trim atlas Apr 23, 2025, 11:29 PM

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Yo my bad I'm on the phone.

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I'll brt

harsh harbor Apr 23, 2025, 11:29 PM

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startplasma-x11 says failed to connect to x server

harsh harbor Apr 23, 2025, 11:29 PM

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trim atlas I'll brt

Np take your time

sullen phoenix Apr 23, 2025, 11:31 PM

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harsh harbor `startplasma-x11` says failed to connect to x server

Oh you use X normally?

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Can you check out xorg.log?

harsh harbor Apr 23, 2025, 11:31 PM

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I usually use Wayland, my bad I'll try Wayland too.

sullen phoenix Apr 23, 2025, 11:32 PM

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harsh harbor I usually use Wayland, my bad I'll try Wayland too.

That’s the way to go

harsh harbor Apr 23, 2025, 11:32 PM

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rn_image_picker_lib_temp_147120b0-3511-4b70-8239-954e094c48b8.jpg

sullen phoenix Apr 23, 2025, 11:34 PM

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Can you run this instead

startplasma-wayland > ~/kde_wayland_log.txt 2>&1

Then pastebin the log

If that’s the same output no need to upload

harsh harbor Apr 23, 2025, 11:37 PM

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rn_image_picker_lib_temp_a5679ad5-38ea-42a7-888e-6bd5a9835f35.jpg

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nvidia_drm not nvidia-drm

My typos are going to be the death of me

sullen phoenix Apr 23, 2025, 11:49 PM

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can you run one more thing? You can take a picture of this one:

journalctl -b | grep -i wayland

trim atlas Apr 23, 2025, 11:49 PM

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Alright dude, my ba

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bad

harsh harbor Apr 23, 2025, 11:54 PM

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rn_image_picker_lib_temp_3f8bad95-095d-4ced-bc32-5a9e25bef92f.jpg

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🍻

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Cheer's fella's!

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👏👏👏

Thank you very much!

sullen phoenix Apr 24, 2025, 12:27 AM

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harsh harbor

can you post what you did to fix it?

trim atlas Apr 24, 2025, 12:29 AM

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The thread disappeared until now, but congrats brother.

harsh harbor Apr 24, 2025, 12:32 AM

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sullen phoenix can you post what you did to fix it?

I had nvidia installed instead of nvidia-dkms

And also I had nvidia-drm.modeset=1 instead of nvidia_drm.modeset=1

#Logout causing black screen with blinking underscore