Public bug reported:
This looks like it has to do with a recent version of the package.
A recent update to v4l2loopback has caused it to fail with the following
error message when modprobe is done:
modprobe: ERROR: could not insert 'v4l2loopback': Invalid argument
This may have to do with an incompatibility with the kernel version and
the dkms module. It seems to compile fine, but cannot be inserted.
ProblemType: Bug
DistroRelease: Ubuntu 21.10
Package: v4l2loopback-dkms 0.12.5-1ubuntu2
ProcVersionSignature: Ubuntu 5.11.0-20.21+21.10.1-lowlatency 5.11.21
Uname: Linux 5.11.0-20-lowlatency x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair nvidia_modeset
nvidia
ApportVersion: 2.20.11-0ubuntu67
Architecture: amd64
CasperMD5CheckResult: unknown
CurrentDesktop: KDE
Date: Wed Jul 14 12:11:36 2021
InstallationDate: Installed on 2021-03-20 (115 days ago)
InstallationMedia: Ubuntu-Studio 21.04 "Hirsute Hippo" - Alpha amd64 (20210320)
PackageArchitecture: all
SourcePackage: v4l2loopback
UpgradeStatus: Upgraded to impish on 2021-06-13 (31 days ago)
** Affects: v4l2loopback (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug impish
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https://bugs.launchpad.net/bugs/1936250
Title:
modprobe: ERROR: could not insert 'v4l2loopback': Invalid argument
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