I have two graphics cards:
- 3rd Generation Intel® Core™ Processors with Intel® HD Graphics 4000
- NVIDIA GeForce GT 640M LE.
I tried to install
nvidia-current, but it seems not compatible.
After I reboot my computer, it does not display anything. Then I go recovery mode and type:
lshw -c video
it shows the above two graphics cards, but with
*-display UNCLAIMED. Also, when I try to
echo $DISPLAY, it shows nothing.