I just booted my Debian 11 PC today and when I entered the password SDDM just froze. I waited several minutes then went to another tty and logged into to see .xsession-errors had the following errors:

Code: Select all

The X11 connection broke: I/O error (code 1)
X connection to :1 broken (explicit kill or server shutdown).
Application::crashHandler() called with signal 11; recent crashes: 1
corrupted double-linked list
KCrash: crashing... crashRecursionCounter = 2
KCrash: Application Name = kwin_x11 path = /usr/bin pid = 1763
KCrash: Arguments: /usr/bin/kwin_x11
KCrash: Attempting to start /usr/lib/x86_64-linux-gnu/libexec/drkonqi
Xsession: X session started for username at Wed 24 Aug 2022 07:33:21 PM EDT
WARNING: tempfile is deprecated; consider using mktemp instead.
dbus-update-activation-environment: setting DBUS_SESSION_BUS_ADDRESS=unix:path=/run/user/1000/bus
dbus-update-activation-environment: setting DISPLAY=:0
dbus-update-activation-environment: setting XAUTHORITY=/home/username/.Xauthority
No protocol specified
xrdb: Resource temporarily unavailable
xrdb: Can't open display ':0'
No protocol specified
xhost:  unable to open display ":0"
dbus-update-activation-environment: setting GTK_MODULES=gail:atk-bridge
dbus-update-activation-environment: setting QT_ACCESSIBILITY=1
No protocol specified
$DISPLAY is not set or cannot connect to the X server.

This was a fresh install of Debian 11 and the desktop was installed through tasksel. Through a tty I can run startx and it hangs until I press ctrl-c exactly 4 times then the desktop comes right in and I'm logged in (Don't know why I have to press ctrl-c, but kde wont come up unless I do).

This kinda feels like an NVidia problem (surprise surprise), but I don't know why KDE could still start and run fine through another tty if it was a driver issue.


Versions:
5.10.0-17-amd64 #1 SMP Debian 5.10.136-1 (2022-08-13) x86_64 GNU/Linux
Kde Plasma Version: 5.20.5
Kde framworks version: 5.78.0
Qt version: 5.15.2
GPU: Quadro P600 (running the nvidia drivers from developer.download.nvidia.com repository)