Please install the attached apt preferences file to /etc/apt/preferences.d/ (as root) and then run 'sudo apt update && sudo apt upgrade'.
This should offer to downgrade all binary packages from the systemd source package to the current jammy-updates versions, without removing any other packages.
After doing so, you can run 'sudo rm /etc/apt/preferences.d/systemd-downgrade /lib/udev/rules.d/60-persistent-storage.rules.bak'.
Then reboot and let us know whether the problem with digikam, gphoto2, et al persists.
Please install the attached apt preferences file to /etc/apt/ preferences. d/ (as root) and then run 'sudo apt update && sudo apt upgrade'.
This should offer to downgrade all binary packages from the systemd source package to the current jammy-updates versions, without removing any other packages.
After doing so, you can run 'sudo rm /etc/apt/ preferences. d/systemd- downgrade /lib/udev/ rules.d/ 60-persistent- storage. rules.bak' .
Then reboot and let us know whether the problem with digikam, gphoto2, et al persists.