Re: Boot Hangs When Ethernet Cable Plugged In

[Peter G.]

Reply #2

Ok, for curiosity, i disabled wifi, set it to be started manually only, left ethernet to
be started automatically. I shut down the computer, leaving the ethernet cable plugged in
and started up the computer. journalctl reports:

Sep 24 10:45:51 node-1w7jr9y9ftt7b9r339kpge4hj.ipv6.telus.net systemd[1]: Started
user(a)988.service - User Manager for UID 988.
Sep 24 10:45:51 node-1w7jr9y9ftt7b9r339kpge4hj.ipv6.telus.net audit[1]: SERVICE_START
pid=1 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:init_t:s0
msg='unit=user@988 comm="systemd" exe="/usr/lib/systemd/systemd"
hostname>
Sep 24 10:45:51 node-1w7jr9y9ftt7b9r339kpge4hj.ipv6.telus.net systemd[1]: Started
session-c1.scope - Session c1 of User sddm.
Sep 24 10:45:51 node-1w7jr9y9ftt7b9r339kpge4hj.ipv6.telus.net audit[1282]: USER_START
pid=1282 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:xdm_t:s0-s0:c0.c1023
msg='op=PAM:session_open grantors=pam_unix,pam_systemd acct>
Sep 24 10:45:51 node-1w7jr9y9ftt7b9r339kpge4hj.ipv6.telus.net sddm-helper[1282]: Starting
X11 session: "" "/usr/bin/sddm-greeter --socket /tmp/sddm-:0-DVndsw --theme
/usr/share/sddm/themes/01-breeze-fedora"
Sep 24 10:45:51 node-1w7jr9y9ftt7b9r339kpge4hj.ipv6.telus.net sddm-greeter[1298]: could
not connect to display :0
Sep 24 10:45:51 node-1w7jr9y9ftt7b9r339kpge4hj.ipv6.telus.net audit[1298]: ANOM_ABEND
auid=4294967295 uid=988 gid=986 ses=4294967295 subj=system_u:system_r:xdm_t:s0-s0:c0.c1023
pid=1298 comm="sddm-greeter" exe="/usr/bin/sddm-greeter" s>
Sep 24 10:45:51 node-1w7jr9y9ftt7b9r339kpge4hj.ipv6.telus.net sddm-greeter[1298]: Could
not load the Qt platform plugin "xcb" in "" even though it was found.
Sep 24 10:45:51 node-1w7jr9y9ftt7b9r339kpge4hj.ipv6.telus.net sddm-greeter[1298]: This
application failed to start because no Qt platform plugin could be initialized.
Reinstalling the application may fix this problem.
                                                                                  
                                                                                 
Available platform plugins are: eglfs, linuxfb, minimal, minimalegl, offscreen, vnc,
wayland-egl, wayland, wayland-xcomposite-egl, wayland-xcomposite-glx>
Sep 24 10:45:51 node-1w7jr9y9ftt7b9r339kpge4hj.ipv6.telus.net systemd[1]: Created slice
system-systemd\x2dcoredump.slice - Slice /system/systemd-coredump.
Sep 24 10:45:51 node-1w7jr9y9ftt7b9r339kpge4hj.ipv6.telus.net audit: BPF prog-id=79
op=LOAD
Sep 24 10:45:51 node-1w7jr9y9ftt7b9r339kpge4hj.ipv6.telus.net audit: BPF prog-id=80
op=LOAD
Sep 24 10:45:51 node-1w7jr9y9ftt7b9r339kpge4hj.ipv6.telus.net audit: BPF prog-id=81
op=LOAD
Sep 24 10:45:51 node-1w7jr9y9ftt7b9r339kpge4hj.ipv6.telus.net audit[1]: SERVICE_START
pid=1 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:init_t:s0
msg='unit=systemd-coredump@0-1299-0 comm="systemd"
exe="/usr/lib/systemd/>
Sep 24 10:45:51 node-1w7jr9y9ftt7b9r339kpge4hj.ipv6.telus.net systemd[1]: Started
systemd-coredump(a)0-1299-0.service - Process Core Dump (PID 1299/UID 0).
Sep 24 10:45:51 node-1w7jr9y9ftt7b9r339kpge4hj.ipv6.telus.net [1302]: [156B blob data]
Sep 24 10:45:51 node-1w7jr9y9ftt7b9r339kpge4hj.ipv6.telus.net systemd-coredump[1301]: [🡕]
Process 1298 (sddm-greeter) of user 988 dumped core.

As far as I can tell, it does the same thing. SDDM will not start, so the system hangs,
does not present a login screen and does a core dump.

So, basically, I need to keep the ethernet cable unplugged until logged in. The wifi can
remain automatic or manual, makes no difference.

Ideas on this?