Jennings, the new Lenovo PC has presented a few challenges. The most recent one is no display on the TTYs. Although the default interface is graphical, pressing
F6) will get you a text console. This is useful for quick operations or when something wonky happens with X. But doing so on Jennings presented a black screen with no video. I was curious to see if this was a display-only issue since Jennings has an NVidia card in it. I pressed
CTL+ALT+F1 and entered my log-in, then
top. I jumped back to the X session with
CTL+ALT+F7 and entered
ps aux. Sure enough, top was running. I went back to the TTY, killed top and logged out. Googling for “ubuntu 14.04 blank tty” turned up some advice that Grub may be using a graphical log in that’s incompatible with my video card. The cure is to edit
/etc/default/grub as root, uncomment out the line
sudo update-grub and reboot.