nvidia-340 340.108-0ubuntu5.20.04.2: nvidia-340 kernel module failed to build

[davide]

module nvidia_uvm is loaded.
after few days the graphic is messi, the windows are clear, but the desktop is unmanageable.
Every thing is fixed with a reboot.

Graphics: VGA compatible controller [0300]: NVIDIA Corporation GF108 [GeForce GT 730] [10de:0f02] (rev a1)

ProblemType: Package
DistroRelease: Ubuntu 20.04
Package: nvidia-340 340.108-0ubuntu5.20.04.2
ProcVersionSignature: Ubuntu 5.8.0-63.71~20.04.1-generic 5.8.18
Uname: Linux 5.8.0-63-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.20.11-0ubuntu27.21
Architecture: amd64
CasperMD5CheckResult: skip
DKMSKernelVersion: 5.11.0-43-generic
Date: Fri Dec 17 06:41:12 2021
InstallationDate: Installed on 2021-05-22 (209 days ago)
InstallationMedia: Ubuntu 20.04.2.0 LTS "Focal Fossa" - Release amd64 (20210209.1)
PackageVersion: 340.108-0ubuntu5.20.04.2
Python3Details: /usr/bin/python3.8, Python 3.8.10, python3-minimal, 3.8.2-0ubuntu2
PythonDetails: N/A
RelatedPackageVersions:
 dpkg 1.19.7ubuntu3
 apt 2.0.6
SourcePackage: nvidia-graphics-drivers-340
Title: nvidia-340 340.108-0ubuntu5.20.04.2: nvidia-340 kernel module failed to build
UpgradeStatus: No upgrade log present (probably fresh install)