quick check the log, there is:
Is nvidia kernel module available? no
However, what installed is linux-modules-nvidia-440-5.4.0-26-generic, which install the nvidia.ko to /lib/modules/5.4.0-26-generic/kernel/nvidia-440/nvidia.ko instead of the directory that gpu-manager check, which is /lib/modules/%s/updates/dkms.
quick check the log, there is:
Is nvidia kernel module available? no
However, what installed is linux-modules- nvidia- 440-5.4. 0-26-generic, which install the nvidia.ko to /lib/modules/ 5.4.0-26- generic/ kernel/ nvidia- 440/nvidia. ko instead of the directory that gpu-manager check, which is /lib/modules/ %s/updates/ dkms.