Alistair: apparently, the gpu-manager detected zero GPUs on your previous boot ("last cards number = 0"). I'm not sure why that is. The number of GPUs from last boot is usually available in /var/lib/ubuntu-drivers-common/last_gfx_boot.
Is it possible that the said file was removed? As that would explain the zero GPUs statement in the log.
Alistair: apparently, the gpu-manager detected zero GPUs on your previous boot ("last cards number = 0"). I'm not sure why that is. The number of GPUs from last boot is usually available in /var/lib/ ubuntu- drivers- common/ last_gfx_ boot.
Is it possible that the said file was removed? As that would explain the zero GPUs statement in the log.