Re: Problems with Additional drivers and Installing graphic drivers
From your description you need to clear out the nvidia drivers and start again.
lspci -nnk | grep -iA3 VGA
sudo apt-cache policy nvidia-current
"Better Solutions may bring Worsened Problems": After Lao Tse, b. circa 405BC. a contemporary of Confucius, who died circa 600BC.
They did things differently in those days, apparently!!