NVIDIA have just released driver version 430.40, and ‘legacy’ driver 390.129, which is also OK with the latest Kernel (tested with 5.3-rc2):

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ld -r -o /home/rgadsdon/kernel/NVIDIA-Linux-x86_64-390.129/kernel/nvidia-modeset/nv-modeset-interface.o /home/rgadsdon/kernel/NVIDIA-Linux-x86_64-390.129/kernel/nvidia-modeset/nvidia-modeset-linux.o
Building modules, stage 2.
MODPOST 4 modules
CC /home/rgadsdon/kernel/NVIDIA-Linux-x86_64-390.129/kernel/nvidia-drm.mod.o
LD [M] /home/rgadsdon/kernel/NVIDIA-Linux-x86_64-390.129/kernel/nvidia-drm.ko
CC /home/rgadsdon/kernel/NVIDIA-Linux-x86_64-390.129/kernel/nvidia-modeset.mod.o
LD [M] /home/rgadsdon/kernel/NVIDIA-Linux-x86_64-390.129/kernel/nvidia-modeset.ko
CC /home/rgadsdon/kernel/NVIDIA-Linux-x86_64-390.129/kernel/nvidia-uvm.mod.o
LD [M] /home/rgadsdon/kernel/NVIDIA-Linux-x86_64-390.129/kernel/nvidia-uvm.ko
CC /home/rgadsdon/kernel/NVIDIA-Linux-x86_64-390.129/kernel/nvidia.mod.o
LD [M] /home/rgadsdon/kernel/NVIDIA-Linux-x86_64-390.129/kernel/nvidia.ko
make[1]: Leaving directory '/usr/src/linux-5.3-rc2'

Robert Gadsdon.   July 31, 2019.