[SOLVED] SDDM wouldn't start unless I restart it manually from TTY

adityagupta1089 · 2023-04-23 20:55:02

I already checked this post https://bbs.archlinux.org/viewtopic.php?id=249418 and changed `MODULES=(radeon)` and `mkinitcpio -P` but that also didn't help.
I have a AMD CPU & GPU both. I don't see any errors in `journalctl -b -u sddm` or anything relevant in `journalctl -b`.
How do I investigate this and fix this?

`journalctl -b -u sddm` : https://bpa.st/7GHLI

Last edited by adityagupta1089 (2023-04-23 22:40:21)

seth · 2023-04-23 21:03:31

systemctl status sddm # before you restart it

and post the journal.
The symptoms smell a lot like early kms, though - do you even use the radeon module (or amdgpu)?

lsmod | grep -E '(radeon|amdgpu)'

adityagupta1089 · 2023-04-23 21:06:27

seth wrote:

systemctl status sddm # before you restart it
and post the journal.
The symptoms smell a lot like early kms, though - do you even use the radeon module (or amdgpu)?
lsmod | grep -E '(radeon|amdgpu)'

http://0x0.st/HKNV.txt for the last command
and http://0x0.st/HKNf.txt for the journalctl log

seth · 2023-04-23 21:20:08

Did you look at the grep?
Now look at

lspci -k

adityagupta1089 · 2023-04-23 21:33:49

I think amdgpu is in use, lspci -k shows that here: 0x0.st/HKNt.txt

adityagupta1089 · 2023-04-23 21:35:44

Thanks, changed the module to `amdgpu` in mkinitcpio.conf and it worked! Thank you for your prompt replies and helping me out. Is the the preferred solution or just a workaround around something major?

seth · 2023-04-23 21:46:24

The kms HOOK should™ have caught that, but some form of early kms is necessary in this setup because systemd starts the graphical.target unconditionally and early.
(I guess editing the service and depending it on /sys/class/drm/card0 might do as well, but has no benefits)

Please always remember to mark resolved threads by editing your initial posts subject - so others will know that there's no task left, but maybe a solution to find.
Thanks.

Arch Linux

#1 2023-04-23 20:55:02

[SOLVED] SDDM wouldn't start unless I restart it manually from TTY

#2 2023-04-23 21:03:31

Re: [SOLVED] SDDM wouldn't start unless I restart it manually from TTY

#3 2023-04-23 21:06:27

Re: [SOLVED] SDDM wouldn't start unless I restart it manually from TTY

#4 2023-04-23 21:20:08

Re: [SOLVED] SDDM wouldn't start unless I restart it manually from TTY

#5 2023-04-23 21:33:49

Re: [SOLVED] SDDM wouldn't start unless I restart it manually from TTY

#6 2023-04-23 21:35:44

Re: [SOLVED] SDDM wouldn't start unless I restart it manually from TTY

#7 2023-04-23 21:46:24

Re: [SOLVED] SDDM wouldn't start unless I restart it manually from TTY

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