After the embarrassment of driver 415.22 not actually compiling with Kernel 4.20, NVIDIA have now released 415.23.    Very brief details are here:  https://www.nvidia.com/Download/driverResults.aspx/141300/en-us This version does compile with Kernel 4.20 (tested with 4.20-rc6) but shows repeated warnings: ………………………………. In file included from /home/rgadsdon/Downloads/NVIDIA-Linux-x86_64-415.23/kernel/nvidia-uvm/uvm8_gpu.h:31, from /home/rgadsdon/Downloads/NVIDIA-Linux-x86_64-415.23/kernel/nvidia-uvm/uvm8_mmu_test.c:24: /home/rgadsdon/Downloads/NVIDIA-Linux-x86_64-415.23/kernel/nvidia-uvm/uvm_linux.h:263:2: warning: #warning “atomic64_t unavailable, demoting to atomic_t!” [-Wcpp] #warning “atomic64_t unavailable, … Continue reading →