Dev1 Galaxy Forum / KDE/SDDM issue: devuan v. debian

Re: KDE/SDDM issue: devuan v. debian

dummy@example.com (grunchy) — Sat, 08 Nov 2025 22:03:11 +0000

thanks @lynch9, you cleared that up. i guessed the change was baked-in but did not examine the source code to confirm.

as i have recently read, using vt7 is an old convention for graphical sessions (X11), not a requirement. and as sddm is aligning with systemd behaviors, re-using vt1 is how-things-work now. since systemd uses on-demand allocation of tty's there does not appear to be any way to "request" vt7 be used.

Re: KDE/SDDM issue: devuan v. debian

dummy@example.com (lynch9) — Thu, 06 Nov 2025 15:23:56 +0000

Yeah in SDDM 0.21 the `--novtswitch` / `-keeptty` flags come from the logind code path.
They’re not in a config file, they’re baked in.

Devuan’s older SDDM (0.19 + elogind) doesn’t add them, so it still hops to VT7 i suppose

If you want Trixie to behave like that, either use elogind or patch/rebuild SDDM...

KDE/SDDM issue: devuan v. debian

dummy@example.com (grunchy) — Thu, 09 Oct 2025 23:38:29 +0000

i have a debian trixie vm running KDE and SDDM. unlike devuan
daedalus, on login it does not switch to vt7, remaining on vt1.

i would like to make the debian vm behave like devuan and switch
to vt7.

in the debian vm, /usr/bin/Xorg is called with arguments not
present in devuan daedalus: -keeptty --novtswitch

there does not appear to be any config file that specifies these
arguments, so i cannot change/remove them.

does anyone know if these command-line arguments are hard-coded
in the sddm binary?

is it possible to change the behavior of sddm in this regard?

the debian trixie sddm is version 0.21 while the devuan daedalus
sddm version is 0.19