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
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https://bugs.launchpad.net/bugs/1610075
Title:
kubuntu-driver-manager application opens to show nothing
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