[Fixed] SDDM wont launch

mms1313 · 2025-11-26 18:22:21

During the boot it gets stuck on 'Starting User Manager for UID 1000...' and i get these errors when trying to run sddm:

sudo sddm
Detected locale "C" with character encoding "ANSI_X3.4-1968", which is not UTF-8.
Qt depends on a UTF-8 locale, and has switched to "C.UTF-8" instead.
If this causes problems, reconfigure your locale. See the locale(1) manual
for more information.
[19:14:35.064] (I) DAEMON: Initializing...
[19:14:35.071] (I) DAEMON: Starting...
[19:14:35.072] (I) DAEMON: Logind interface found
[19:14:35.072] (I) DAEMON: Adding new display...
[19:14:35.076] (I) DAEMON: Loaded empty theme configuration
[19:14:35.079] (I) DAEMON: Xauthority path: "/run/sddm/xauth_pelhL2x"
[19:14:35.082] (I) DAEMON: Using VT 1
[19:14:35.087] (II) DAEMON: Display server starting...
[19:14:35.091] (II) DAEMON: Writing cookie to "/run/sddm/xauth_pelhL2x"
[19:14:35.096] (II) DAEMON: Running: /usr/bin/X -nolisten tcp -background none -seat seat0 vt1 -auth /run/sddm/xauth_pelhL2x -noreset -displayfd 15
[19:14:35.103] (WW) DAEMON: Failed to read display number from pipe
[19:14:35.103] (II) DAEMON: Display server stopping...
[19:14:35.107] (II) DAEMON: Display server stopped.
[19:14:38.480] (II) DAEMON: Attempt 2 starting the Display server on vt 1
[19:14:38.482] (II) DAEMON: Display server starting...
[19:14:38.484] (II) DAEMON: Writing cookie to "/run/sddm/xauth_pelhL2x"
[19:14:38.489] (II) DAEMON: Running: /usr/bin/X -nolisten tcp -background none -seat seat0 vt1 -auth /run/sddm/xauth_pelhL2x -noreset -displayfd 15
[19:14:38.492] (WW) DAEMON: Failed to read display number from pipe
[19:14:38.492] (II) DAEMON: Display server stopping...
[19:14:38.494] (II) DAEMON: Display server stopped.
[19:14:43.302] (II) DAEMON: Attempt 3 starting the Display server on vt 1
[19:14:43.304] (II) DAEMON: Display server starting...
[19:14:43.306] (II) DAEMON: Writing cookie to "/run/sddm/xauth_pelhL2x"
[19:14:43.311] (II) DAEMON: Running: /usr/bin/X -nolisten tcp -background none -seat seat0 vt1 -auth /run/sddm/xauth_pelhL2x -noreset -displayfd 15
[19:14:43.313] (WW) DAEMON: Failed to read display number from pipe
[19:14:43.313] (II) DAEMON: Display server stopping...
[19:14:43.315] (II) DAEMON: Display server stopped.
[19:14:15.800] (WW) DAEMON: Cannot start Display server on vt 1
[19:14:15.800] (WW) DAEMON: Signal received: SIGINT

Note: this started happening after https://bbs.archlinux.org/viewtopic.php?id=310350

Last edited by mms1313 (2025-12-01 20:01:07)

V1del · 2025-11-26 19:25:37

Check/post your /var/log/Xorg.0.log

mms1313 · 2025-11-26 20:08:41

sorry forgot:
http://0x0.st/K4rw.txt

V1del · 2025-11-26 20:29:53

Looks like the multi GPU glamor issue snuck into the xorg server, this is supposed to be patched in 21.1.21, so update your system and make sure you get the new xorg packages. You might also want to consider removing the autoconfigured xorg.conf they are usually not necessary. (what's the second GPU for? if you don't actually need it you might be able to avoid some gotchas by disabling an eventual iGPU in your UEFI)

Last edited by V1del (2025-11-26 20:31:37)

mms1313 · 2025-11-27 15:54:52

the update didnt help, i have also checked bios and i cant find a way to disable the iGPU, btw its a laptop

mms1313 · 2025-11-30 12:25:42

can someone please help me?

seth · 2025-11-30 16:28:38

Please post an updated Xorg log

seth · 2025-11-30 22:45:23

x-ref, https://bbs.archlinux.org/viewtopic.php?id=310492

mms1313 · 2025-12-01 13:29:43

The log is the same but here it is:

http://0x0.st/KJfl.txt

seth · 2025-12-01 16:11:13

See the other thread, notably

pacman -Qikk mesa llvm llvm-libs
pacman -Qs 'llvm|mesa'

mms1313 · 2025-12-01 20:00:46

Thank you so much, i saw in the thread that i got the same errors from

pacman -Qikk mesa llvm llvm-libs
pacman -Qs 'llvm|mesa'

So reinstalled llvm-libs and everything is working fine

seth · 2025-12-01 20:20:32

\o/

That's a bit too co-incidental for a lazy universe - any idea what could have caused the library to end up being corrupted?

Arch Linux

#1 2025-11-26 18:22:21

[Fixed] SDDM wont launch

#2 2025-11-26 19:25:37

Re: [Fixed] SDDM wont launch

#3 2025-11-26 20:08:41

Re: [Fixed] SDDM wont launch

#4 2025-11-26 20:29:53

Re: [Fixed] SDDM wont launch

#5 2025-11-27 15:54:52

Re: [Fixed] SDDM wont launch

#6 2025-11-30 12:25:42

Re: [Fixed] SDDM wont launch

#7 2025-11-30 16:28:38

Re: [Fixed] SDDM wont launch

#8 2025-11-30 22:45:23

Re: [Fixed] SDDM wont launch

#9 2025-12-01 13:29:43

Re: [Fixed] SDDM wont launch

#10 2025-12-01 16:11:13

Re: [Fixed] SDDM wont launch

#11 2025-12-01 20:00:46

Re: [Fixed] SDDM wont launch

#12 2025-12-01 20:20:32

Re: [Fixed] SDDM wont launch

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