package libnvidia-compute-390 (not installed) failed to install/upgrade: trying to overwrite '/usr/lib/x86_64-linux-gnu/libnvidia-ml.so', which is also in package nvidia-340 340.106-0ubuntu3

[Matt Hall]

Just upgraded to 18.04 from 16.04. Installing nvidia-cuda-toolkit. Seems like there's a missing subpackage?

ProblemType: Package
DistroRelease: Ubuntu 18.04
Package: libnvidia-compute-390 (not installed)
ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17
Uname: Linux 4.15.0-20-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.20.9-0ubuntu7
Architecture: amd64
Date: Mon Apr 30 17:01:12 2018
ErrorMessage: trying to overwrite '/usr/lib/x86_64-linux-gnu/libnvidia-ml.so', which is also in package nvidia-340 340.106-0ubuntu3
InstallationDate: Installed on 2014-08-27 (1342 days ago)
InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
Python3Details: /usr/bin/python3.6, Python 3.6.5, python3-minimal, 3.6.5-3
PythonDetails: /usr/bin/python2.7, Python 2.7.15rc1, python-minimal, 2.7.15~rc1-1
RelatedPackageVersions:
 dpkg 1.19.0.5ubuntu2
 apt 1.6.1
SourcePackage: nvidia-graphics-drivers-390
Title: package libnvidia-compute-390 (not installed) failed to install/upgrade: trying to overwrite '/usr/lib/x86_64-linux-gnu/libnvidia-ml.so', which is also in package nvidia-340 340.106-0ubuntu3
UpgradeStatus: Upgraded to bionic on 2018-04-30 (0 days ago)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[ZX80 (zx80)]

still an ongoing issue, seems that some of the low-level *.so shared-objects ought to be moved to their own DPKG, and not included in-line directly in the higher-level DPKG of each application.

Discussion active 2 months ago:
https://askubuntu.com/questions/1321987/which-version-for-correct-nvidia-setup-for-ubuntu-20-04

[ZX80 (zx80)]

Possible workaround:
 - after the install fails, can repair it with DPKG "--force-overwrite":

apt-get -o Dpkg::Options::="--force-overwrite" install --fix-broken