I followed the instructions at
the debian wiki. By the way, those instructions are a little confusing as they tell you to remove "all stable security updates line(s) (anything with security.debian.org in it)", but then tell you to include "deb
http://security.debian.org <"testing" or codename>/updates main line in your /etc/apt/sources.list". My sources.list file:
Code: Select all
deb http://ftp.uk.debian.org/debian/ testing main contrib non-free
deb-src http://ftp.uk.debian.org/debian/ testing main contrib non-free
deb http://security.debian.org testing/updates main
I upgraded and found that I couldn't start x after a reboot! There were no relevant error messages any where in dmesg/syslog/Xorg.0.log! There's no /etc/etc/X11/xorg.conf file. Running init5 and startx did nothing. Running kdeinit5 5 gave me an error message: "kdeinit5 aborting. $DISPLAY not set."
I got it working after I installed a different display manager. Not sure if there are any compelling reasons to switch back to sddm? So, I think this may be an issue with sddm.
Kernel: 4.9.0-4-amd64 x86_64
gcc: 6.3.0
Desktop: KDE Plasma 5.12.3 (Qt 5.9.2)
Display Server: x11 (X.Org 1.19.6 )
drivers: ati,amdgpu (unloaded: modesetting,fbdev,vesa,radeon)