Device-1: NVIDIA GT216GL [Quadro 400] driver: nouveau v: kernel 03:00.0 VGA compatible controller [0300]: NVIDIA Corporation GT216GL [Quadro 400] [10de:0a38] (rev a2)
sudo ubuntu-drivers list nvidia-340 # libcuda1-340 nvidia-opencl-icd-340 nvidia-settings screen-resolution-extra # dpkg: error: version '-' has bad syntax: revision number is empty
sudo apt-get install vrms vrms | grep -i nvidia sudo apt-get remove $(vrms | grep -i nvidia | cut -d' ' -f1) sudo apt-get autoremove --purge nvidia-340 sudo rm /etc/modprobe.d/bumblebee.conf
sudo dpkg -r nvidia-340 apt-cache search nouveau sudo apt-get install libdrm-nouveau2 xserver-xorg-video-nouveau bumblebee xserver-xorg-video-nouveau-hwe-18.04 nouveau-firmware