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Since I installed Ubuntu 18.04, I can not switch to tty3-7 from the login screen. Until Ubuntu 17.10, this worked perfectly using Ctrl+Alt+F3, F4, .. both from login screen and from user sessions. This is a problem, especially if one is installing a fresh installation and is messing around with /etc/fstab.

I have read that the numbering of tty's changes, e.g. in How do I switch between console mode and GUI in 17.10? but I do now know why changing to terminal does not work from the login screen.

Is there a workaround for that?

Edit When I try to switch, i.e. p.e. hit ctrl+alt+f4, nothing happens (not even a short freeze or so). If I log in and do the same thing, I see the terminal, can login and everything works fine. If I then lock the screen, I can still switch to the terminal.

My graphics card is a RX 480, the mainline drivers are (as far as I know) integrated in Kernel 4.15 and should therefore work. Furthermore, it works with Ubuntu 17.10 with Kernel 4.15 (mainline kernel), so I assume the graphics driver are not the problem.

David Georg Reichelt
  • 670

3 Answers3

1

This appears to caused by a bug in gdm3: Bug #1758512 "No virtual terminals (CTRL+ALT+F?) when no user logged in; erratic behaviour when user logged in."

I'd recommend going to that link and clicking the button to mark yourself as affected by the bug.

cha5on
  • 113
0

I also had the same problem, But Ctrl + Alt + F6 seems to work on mine. EDIT: earlier, nothing worked as i tried with F2 and F3 and F4 and then gave up. But now once F6 worked well, others seem to work well again too.

swatantra
  • 21
0

I have also encountered the same problem, but it seems to have been resolved after I upgraded software packages by apt upgrade.

I'm sorry that I don't know which package upgrade is the reason for this problem. I listed the version changes of the packages in my computer before, but it was messy so I deleted it... Just try the newer version of packages to solve your problem.

li ki
  • 117