I now have this exact same issue with KUbuntu 19.10. Device Manager worked fine in KUbuntu 19.04 but then I upgraded to 19.10 (do-release-upgrade) and now get exactly the same hang of the kubuntu- driver-manager
The command "ubuntu-drivers" seems to report info ok but installing reports an issue $ sudo ubuntu-drivers install Reading package lists... Done Building dependency tree Reading state information... Done Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. The following information may help to resolve the situation: The following packages have unmet dependencies: nvidia-driver-435 : Depends: libnvidia-gl-435 (= 435.21-0ubuntu2) but it is not going to be installed Depends: nvidia-compute-utils-435 (= 435.21-0ubuntu2) but it is not going to be installed Depends: libnvidia-decode-435 (= 435.21-0ubuntu2) but it is not going to be installed Depends: libnvidia-encode-435 (= 435.21-0ubuntu2) but it is not going to be installed Depends: xserver-xorg-video-nvidia-435 (= 435.21-0ubuntu2) but it is not going to be installed Depends: libnvidia-cfg1-435 (= 435.21-0ubuntu2) but it is not going to be installed Depends: libnvidia-ifr1-435 (= 435.21-0ubuntu2) but it is not going to be installed Depends: libnvidia-fbc1-435 (= 435.21-0ubuntu2) but it is not going to be installed Recommends: libnvidia-compute-435:i386 (= 435.21-0ubuntu2) Recommends: libnvidia-decode-435:i386 (= 435.21-0ubuntu2) Recommends: libnvidia-encode-435:i386 (= 435.21-0ubuntu2) Recommends: libnvidia-ifr1-435:i386 (= 435.21-0ubuntu2) Recommends: libnvidia-fbc1-435:i386 (= 435.21-0ubuntu2) Recommends: libnvidia-gl-435:i386 (= 435.21-0ubuntu2) E: Unable to correct problems, you have held broken packages -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1610075 Title: kubuntu-driver-manager application opens to show nothing To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/kubuntu-driver-manager/+bug/1610075/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs