I am one of those affected by this bug. I tried the 340 driver made by this PPA as a workaround and it works great and resolves my issue: https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-340/+bug/1916640
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to nvidia-graphics-drivers-340 in Ubuntu. https://bugs.launchpad.net/bugs/1938978 Title: nvidia-340 kernel module failed to build (ERROR: Kernel configuration is invalid) Status in nvidia-graphics-drivers-340 package in Ubuntu: Confirmed Bug description: ProblemType: Package DKMSBuildLog: DKMS make.log for nvidia-340-340.108 for kernel 5.11.0-25-generic (x86_64) to. 05. aug. 06:23:28 +0200 2021 NVIDIA: calling KBUILD... make[1]: Entering directory '/usr/src/linux-headers-5.11.0-25-generic' test -e include/generated/autoconf.h -a -e include/config/auto.conf || ( \ echo >&2; \ echo >&2 " ERROR: Kernel configuration is invalid."; \ echo >&2 " include/generated/autoconf.h or include/config/auto.conf are missing.";\ echo >&2 " Run 'make oldconfig && make prepare' on kernel src to fix it ."; \ echo >&2 ; \ /bin/false) make -f ./scripts/Makefile.build obj=/var/lib/dkms/nvidia-340/340.108/build \ single-build= \ need-builtin=1 need-modorder=1 cc -Wp,-MMD,/var/lib/dkms/nvidia-340/340.108/build/.nv.o.d -nostdinc -isyste m /usr/lib/gcc/x86_64-linux-gnu/9/include -I./arch/x86/include -I./arch/x86/inc lude/generated -I./include -I./arch/x86/include/uapi -I./arch/x86/include/gener ated/uapi -I./include/uapi -I./include/generated/uapi -include ./include/linux/k...etc /var/crash$ lsb_release -rd Description: Ubuntu 20.04.2 LTS Release: 20.04 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: 2.20.11-0ubuntu27.18 Architecture: amd64 CasperMD5CheckResult: skip DKMSKernelVersion: 5.11.0-25-generic Date: Thu Aug 5 06:24:36 2021 InstallationDate: Installed on 2021-05-01 (95 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) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-340/+bug/1938978/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp