Arch Linux

LichHunter

Member

Registered: 2026-02-20

Posts: 3

Session crashes after login, booted back to sddm

So I have been using arch on my gigabyte laptop, running an nvidia 4060 and an intel cpu, everytime after I log in, it works for about 2 minutes and then boots me back to the sddm login screen. Curious enough when I try to change to tty, the login screen dissapears and I'm back inside KDE where I left off,

I use SDDM with KDE. Nvidia Graphics and Intel cpu with iGPU.

Here are my recent boot logs

https://termbin.com/2w3v

Any help is appreciated.

seth

Member

From: Won't reply 2 private help req

Registered: 2012-09-03

Posts: 74,647

Re: Session crashes after login, booted back to sddm

Apr 16 10:13:31 KHALED-BM sudo[4161]:   khaled : TTY=pts/1 ; PWD=/home/khaled ; USER=root ; COMMAND=/usr/bin/journalctl -e

sudo journalctl -b

after the session failed, you can

sudo journalctl -b | curl -s -H "Accept: application/json, */*" --upload-file - 'https://paste.c-net.org/'

Edit: there's somehow a 90s session

Apr 16 10:11:42 KHALED-BM (systemd)[1029]: pam_unix(systemd-user:session): session opened for user khaled(uid=1000) by khaled(uid=0)
Apr 16 10:11:42 KHALED-BM systemd[1]: Started Session 2 of User khaled.
Apr 16 10:13:12 KHALED-BM sddm-helper[1023]: pam_unix(sddm:session): session closed for user khaled

seems dbus related.

echo $DBUS_SESSION_BUS_ADDRESS

Last edited by seth (2026-04-16 13:15:09)

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LichHunter

Member

Registered: 2026-02-20

Posts: 3

Re: Session crashes after login, booted back to sddm

I did an update today, and so far I've rebooted the pc a few times and the error hasn't happened yet, but I'm still observing it, for the Dbus command:

echo $DBUS_SESSION_BUS_ADDRESS
unix:path=/run/user/1000/bus

Edit: there's somehow a 90s session

Also, what does this mean

seth

Member

From: Won't reply 2 private help req

Registered: 2012-09-03

Posts: 74,647

Re: Session crashes after login, booted back to sddm

There was a session that ran for ~90s (suspiciously the default systemd service timeout)

the error hasn't happened yet, but I'm still observing it

Errr? Hein?
The dbus address is fine, unless the problem still manifests and 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.

You can remove the tag and bump the thread w/ a new journal if and when this happens again.

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How to upload text · How to boot w/o GUI · Disable Windows Fast-Start! · Fix your xinitrc