No TTY on CTRL+ALT+F1-6 when no user is logged-in in DM

xicod · n00b Joined: 03 Oct 2013 Posts: 18

The problem is like this:
Trying to switch to a TTY using CTRL+ALT+F1 keys immediately after boot seeing a graphical user login prompt in GDM/Lightdm gives a black blank screen.
Switching back to DM with CTRL+ALT+F7, logging in and then hitting CTRL+ALT+F1 will give the desired TTY login prompt.
If I log out in GUI and try to switch to TTY - again gives a blank screen.
Conclusion - there's a direct connection between the authentication status in DM and switching ability to TTY,
which sounds to me like a "security feature", possibly in systemd (because it happens with GDM and Lightdm).

System is latest stable, using systemd and an Nvidia graphics card (which I'm pretty sure is not related)

Please assist ..

ferrelas · Tux's lil' helper Joined: 14 Jun 2008 Posts: 107

Would you ever need to do that?

Also, the obvious solution is to stop using the graphical login manager.

The Doctor · Moderator Joined: 27 Jul 2010 Posts: 2658

OP, what kind of video card do you have and what kind of drivers are you using? There have been similar cases with the higher end cards not properly supporting the console mode.
_________________
First things first, but not necessarily in that order.

Apologies if I take a while to respond. I'm currently working on the dematerialization circuit for my blue box.

xicod · n00b Joined: 03 Oct 2013 Posts: 18

xicod · n00b Joined: 03 Oct 2013 Posts: 18

Any ideas?

khamryn · n00b Joined: 05 May 2015 Posts: 2

Hi, I am too having this very issue. haven't been paying attention due to life stuff, so I have no idea when (or if) a update caused this. I do not use a DM (use startx), use Proprietary ATI-drivers, and run a mixed-system of stable and testing. Had no issues with going back to the shell with the proprietary drivers until recently. Think it may have been caused (at least for me) when the new ati-drivers was added back in early April possible. I may do a downgrade when I have time, but it's a pain due to dependence conflicts with newer packages. If anyone had experienced this issue and found a resolution, please reply.

khamryn · n00b Joined: 05 May 2015 Posts: 2

Found my solution. I downgraded x.org from 1.17 to 1.16. I overlooked this upgrade a while back and didn't realize console wouldn't display once the GUI started until this week.