NVIDIA have released driver 415.22, which is supposed to fix compile problems with Kernel 4.20.   Details are here:  https://www.nvidia.com/Download/driverResults.aspx/141072/en-us Unfortunately, this still fails to compile (tested with 4.20-rc5): ………………………….. CC [M] /home/rgadsdon/kernel/NVIDIA-Linux-x86_64-415.22/kernel/nvidia/linux_nvswitch.o /home/rgadsdon/kernel/NVIDIA-Linux-x86_64-415.22/kernel/nvidia/linux_nvswitch.c: In function ‘nvswitch_os_snprintf_time’: /home/rgadsdon/kernel/NVIDIA-Linux-x86_64-415.22/kernel/nvidia/linux_nvswitch.c:1585:5: error: implicit declaration of function ‘time_to_tm’; did you mean ‘time64_to_tm’? [-Werror=implicit-function-declaration] time_to_tm(time_nsec / NVSWITCH_NSEC_PER_SEC, 0, &t); ^~~~~~~~~~ time64_to_tm cc1: some … Continue reading →