nvidia-kernel-source-460 460.73.01-0ubuntu0.20.04.1: nvidia kernel module failed to build

[Alberto]

nvidia-kernel-source-460 460.73.01-0ubuntu0.20.04.1: nvidia kernel module failed to build

ProblemType: Package
DistroRelease: Ubuntu 20.04
Package: nvidia-kernel-source-460 460.73.01-0ubuntu0.20.04.1
ProcVersionSignature: Ubuntu 5.8.0-50.56~20.04.1-generic 5.8.18
Uname: Linux 5.8.0-50-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu27.16
Architecture: amd64
CasperMD5CheckResult: skip
DKMSKernelVersion: 5.8.0-50-generic
Date: Sat Jun 5 15:09:53 2021
Dependencies:

DuplicateSignature: dkms:nvidia-kernel-source-460:460.73.01-0ubuntu0.20.04.1:clang: error: unsupported option '-dumpspecs'
InstallationDate: Installed on 2021-04-06 (80 days ago)
InstallationMedia: Ubuntu 20.04.2.0 LTS "Focal Fossa" - Release amd64 (20210209.1)
PackageVersion: 460.73.01-0ubuntu0.20.04.1
Python3Details: /usr/bin/python3.8, Python 3.8.5, python3-minimal, 3.8.2-0ubuntu2
PythonDetails: N/A
RelatedPackageVersions:
 dpkg 1.19.7ubuntu3
 apt 2.0.5
SourcePackage: nvidia-graphics-drivers-460
Title: nvidia-kernel-source-460 460.73.01-0ubuntu0.20.04.1: nvidia kernel module failed to build
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

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

[Ben Heidemann (b2n)]

This happened apparently without reasons after a reboot. Now my screen resolution is not detected properly.