For what its' worth, I built the nvidia-340_340.108-0ubuntu5 package (includes patches to go up to kernel 5.9 apparently) on Focal20.04 -- just using the groovy-updates version and renumbering it back to 20.04.0test0 instead of a 20.10. version.
The full source and set of debs is here:- https://www.iremonger.me.uk/noidx/nvidia-340-focal/ You only seem to need the 'nvidia-340' deb [ https://www.iremonger.me.uk/noidx/nvidia-340-focal/nvidia-340_340.108-0ubuntu5.20.04.0test0_amd64.deb ] for basic usage of the driver, but the full set of debs and source package is provided above. This appears to solve the build and install problem on 20.04 based system, with ubuntu kernel 5.8 series installed. By all means use and test this if you like, I hope ubuntu-devs will put the same or equivalent into focal-proposed and focal-updates very soon!. -- 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/1910709 Title: DKMS linux-headers-5.8.0-34-generic update brokes nvidia-340 Status in nvidia-graphics-drivers-340 package in Ubuntu: Confirmed Status in nvidia-graphics-drivers-340 source package in Focal: Confirmed Bug description: Last linux kernel update "linux-headers-5.8.0-34-generic" broke nvidia-340 driver and Desktop access. In make log: [...] 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 ; [...] Full DKMS log file attacked. --- ProblemType: Bug ApportVersion: 2.20.11-0ubuntu27.14 Architecture: amd64 CasperMD5CheckResult: skip CurrentDesktop: ubuntu:GNOME DistroRelease: Ubuntu 20.04 InstallationDate: Installed on 2020-11-04 (64 days ago) InstallationMedia: Ubuntu 20.04.1 LTS "Focal Fossa" - Release amd64 (20200731) MachineType: Gigabyte Technology Co., Ltd. H81M-D3H NonfreeKernelModules: nvidia Package: linux (not installed) ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=es_ES.UTF-8 SHELL=/bin/bash ProcFB: 0 EFI VGA ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-59-generic root=UUID=b0ed05d5-7921-451b-b62c-773b97eeca2f ro quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 5.4.0-59.65-generic 5.4.78 RelatedPackageVersions: linux-restricted-modules-5.4.0-59-generic N/A linux-backports-modules-5.4.0-59-generic N/A linux-firmware 1.187.7 RfKill: 0: phy0: Wireless LAN Soft blocked: no Hard blocked: no Tags: focal Uname: Linux 5.4.0-59-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: sudo WifiSyslog: _MarkForUpload: True dmi.bios.date: 01/20/2014 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: F2 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: H81M-D3H dmi.board.vendor: Gigabyte Technology Co., Ltd. dmi.board.version: x.x dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: Gigabyte Technology Co., Ltd. dmi.chassis.version: To Be Filled By O.E.M. dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrF2:bd01/20/2014:svnGigabyteTechnologyCo.,Ltd.:pnH81M-D3H:pvrTobefilledbyO.E.M.:rvnGigabyteTechnologyCo.,Ltd.:rnH81M-D3H:rvrx.x:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvrToBeFilledByO.E.M.: dmi.product.family: To be filled by O.E.M. dmi.product.name: H81M-D3H dmi.product.sku: To be filled by O.E.M. dmi.product.version: To be filled by O.E.M. dmi.sys.vendor: Gigabyte Technology Co., Ltd. --- ProblemType: Bug ApportVersion: 2.20.11-0ubuntu27.14 Architecture: amd64 CasperMD5CheckResult: skip DistroRelease: Ubuntu 20.04 InstallationDate: Installed on 2020-11-04 (64 days ago) InstallationMedia: Ubuntu 20.04.1 LTS "Focal Fossa" - Release amd64 (20200731) MachineType: Gigabyte Technology Co., Ltd. H81M-D3H NonfreeKernelModules: nvidia Package: linux (not installed) ProcEnviron: TERM=xterm-256color PATH=(custom, no user) LANG=es_ES.UTF-8 SHELL=/bin/bash ProcFB: 0 EFI VGA ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-59-generic root=UUID=b0ed05d5-7921-451b-b62c-773b97eeca2f ro quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 5.4.0-59.65-generic 5.4.78 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: linux-restricted-modules-5.4.0-59-generic N/A linux-backports-modules-5.4.0-59-generic N/A linux-firmware 1.187.7 RfKill: 0: phy0: Wireless LAN Soft blocked: no Hard blocked: no Tags: focal Uname: Linux 5.4.0-59-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: N/A _MarkForUpload: True dmi.bios.date: 01/20/2014 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: F2 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: H81M-D3H dmi.board.vendor: Gigabyte Technology Co., Ltd. dmi.board.version: x.x dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: Gigabyte Technology Co., Ltd. dmi.chassis.version: To Be Filled By O.E.M. dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrF2:bd01/20/2014:svnGigabyteTechnologyCo.,Ltd.:pnH81M-D3H:pvrTobefilledbyO.E.M.:rvnGigabyteTechnologyCo.,Ltd.:rnH81M-D3H:rvrx.x:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvrToBeFilledByO.E.M.: dmi.product.family: To be filled by O.E.M. dmi.product.name: H81M-D3H dmi.product.sku: To be filled by O.E.M. dmi.product.version: To be filled by O.E.M. dmi.sys.vendor: Gigabyte Technology Co., Ltd. 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