Christoph, What video device does your VM use? Maybe it uses real hardware, or does it use a virtual device like QLX or Virtio? I have been using virtio. I also tried QLX and it works.
See below for other questions. On Friday, 05-07-2024 at 01:16 Christoph Pleger wrote: > Hello, > > To get to the bottom of the problem, I upgraded a bullseye VM > > to a bookworm VM step by step: first libc, then the Xorg- > > packages, then the kernel, then sddm, lightdm and gdm3, and finally > the > > rest. Unfortunately, it was only after the rest that the GUI login no > > longer appeared; therefore I am not really any further with the > answer > > to the question what exactly the problem is. > > > I can now tell that the problem is introduced when upgrading the > following packages from bullseye to their bookworm versions: Did you upgrade your full distribution or only these files? I would never consider using packages from a different Debian version. I guess people do this? But liking stability, it is not something I would do. > > libglx-mesa0 libx11-xcb1 libgbm1 libgl1-mesa-dri libdrm-common > libglapi-mesa libdrm-amdgpu1 libdrm2 libegl-mesa0 libx11-6 > libwayland-client0 > > Regards > Christoph > I did a test, building a Bullseye VM and then totally upgrading to Bookworm and had no issues. George. See below for the steps I used: Using Virt-Manager, create a Bullseye, KDE Virtual Machine using VNC to communcate to the virtio display device. Upgrade Bullseye to Bookworm: https://wiki.debian.org/DebianUpgrade nano /etc/apt/sources.list (remark out Bullseye repositories and replace with the below Bookworm repositories) deb https://deb.debian.org/debian/ bookworm main non-free non-free-firmware contrib deb-src http://deb.debian.org/debian/ bookworm main non-free non-free-firmware contrib deb https://security.debian.org/debian-security bookworm-security main contrib non-free non-free-firmware deb-src http://security.debian.org/debian-security bookworm-security main contrib non-free non-free-firmware # bookworm-updates, to get updates before a point release is made; # see https://www.debian.org/doc/manuals/debian-reference/ch02.en.html#_updates_and_backports deb https://deb.debian.org/debian/ bookworm-updates main contrib non-free non-free-firmware deb-src https://deb.debian.org/debian/ bookworm-updates main contrib non-free non-free-firmware # bookworm-backports, previously on backports.debian.org deb https://deb.debian.org/debian/ bookworm-backports main contrib non-free non-free-firmware deb-src https://deb.debian.org/debian/ bookworm-backports main contrib non-free non-free-firmware apt update && apt update && apt full-upgrade -y (allow the restart of services as the installation continues) Let the installation run, then reboot and log back in... A number of Errors were reported rebooted when installation completed logged in and ran updates again, various packages were "Setting up" and there were a number of "Installing new version of " a config file". rebooted when installation completed logged back in and all worked. Ran apt autoremove, rebooted and logged back in, all working well.
