When I go from my graphical session to a virtual console by Ctrl + Alt + F i (with i in 1 - 7 and 9-12) I see a completely black screen. Only on F8 I see the GUI. Not even a blinking coursor on the others. When I enter anything, I can't see anything.What is the problem and how do I fix it?My system$ uname -aLinux pc09 3.13.0-36-generic #63-Ubuntu SMP Wed Sep 3 21:30:07 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux$ cat /etc/issueLinux Mint 17 Qiana \n \l$ lspci | grep VGA01:00.0 VGA compatible controller: NVIDIA Corporation GK110B [GeForce GTX Titan Black] (rev a1)$ lspci -k | grep -A 2 -i VGA01:00.0 VGA compatible controller: NVIDIA Corporation GK110B [GeForce GTX Titan Black] (rev a1)Subsystem: NVIDIA Corporation Device 1066Kernel driver in use: nvidiaedit: I tried the first steps suggested on http://forums.linuxmint.com/viewtopic.php?f=42&t=168108 and the problem seems to be the framebuffer.I did this:This has been an issue that has been an annoyance with Nvidia  proprietary drivers for two or three years, and has kept me away from  Ubuntu-based distros for some time. Finally, on the Nvidia forum, I  found the workaround I'd been looking for. The problem arises with  Nvidia proprietary drivers (Nouveau doesn't show this behavior): when  you push ctrl-alt-F1, you get only a black screen or, at best, a  flashing cursor that does nothing. The problem apparently, has to do  with the way the framebuffer in implemented and this needs to be  disabled. To see if this is the problem, first you need to make a  couple of minor modifications to /etc/default/grub - but first, make a  backup! $ sudo cp /etc/default/grub /etc/default/grub.bakNow edit the file by entering $ sudo pluma /etc/default/grubin the editor, uncomment the lines #GRUB_TERMINAL=console#GRUB_GFXMODE=640x480by removing the #. Save the file and run undate-grub to implement the changessudo update-grubNow I have (a low resultion) tty working again :-)
Why are my virtual consoles completely blank?
tty