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dice

Member

From: Germany

Registered: 2014-02-10

Posts: 413

sometimes unable to switch tty

I am using lightdm and cinnamon.

Sometimes I am unable to switch to another tty. Whe I press CTRL+ALT+F2 (or 3,4,5,6 whatever) the screen flickers shortly and I am still in cinnamon.
journalctl shows the following when it happens:

Mai 22 11:49:11 obsidian systemd[1]: getty@tty1.service has no holdoff time, scheduling restart.
Mai 22 11:49:11 obsidian systemd[1]: Started Getty on tty1.
Mai 22 11:49:11 obsidian systemd[1]: Starting Getty on tty1...
Mai 22 11:50:01 obsidian login[1089]: pam_tally(login:auth): pam_get_uid; no such user
Mai 22 11:50:18 obsidian login[1089]: pam_unix(login:auth): check pass; user unknown
Mai 22 11:50:18 obsidian login[1089]: pam_unix(login:auth): authentication failure; logname=LOGIN uid=0 euid=0 tty=tty1 ruser= rhost=
Mai 22 11:50:19 obsidian login[1089]: FAILED LOGIN 1 FROM tty1 FOR JOURN-F, Authentication failure
Mai 22 11:51:00 obsidian systemd[1]: getty@tty1.service has no holdoff time, scheduling restart.
Mai 22 11:51:00 obsidian systemd[1]: Started Getty on tty1.
Mai 22 11:51:00 obsidian systemd[1]: Starting Getty on tty1...

The failed authentication for user "journ-f" indicates that I am somehow writing on the other tty while I am writing in a terminal too. I started journaltctl -f thats where the username comes from.

Any ideas what could be the problem? Or how I could investigate this further?

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I put at button on it. Yes. I wish to press it, but I'm not sure what will happen if I do.  (Gune | Titan A.E.)

karol

Archivist

Registered: 2009-05-06

Posts: 25,440

Re: sometimes unable to switch tty

https://bbs.archlinux.org/viewtopic.php?id=197637 ?

gehidore

IRC Op

From: Near the pine trees

Registered: 2012-11-09

Posts: 35

Re: sometimes unable to switch tty

I am using lightdm and cinnamon.

Sometimes I am unable to switch to another tty. Whe I press CTRL+ALT+F2 (or 3,4,5,6 whatever) the screen flickers shortly and I am still in cinnamon.
journalctl shows the following when it happens:

Mai 22 11:49:11 obsidian systemd[1]: getty@tty1.service has no holdoff time, scheduling restart.
Mai 22 11:49:11 obsidian systemd[1]: Started Getty on tty1.
Mai 22 11:49:11 obsidian systemd[1]: Starting Getty on tty1...
Mai 22 11:50:01 obsidian login[1089]: pam_tally(login:auth): pam_get_uid; no such user
Mai 22 11:50:18 obsidian login[1089]: pam_unix(login:auth): check pass; user unknown
Mai 22 11:50:18 obsidian login[1089]: pam_unix(login:auth): authentication failure; logname=LOGIN uid=0 euid=0 tty=tty1 ruser= rhost=
Mai 22 11:50:19 obsidian login[1089]: FAILED LOGIN 1 FROM tty1 FOR JOURN-F, Authentication failure
Mai 22 11:51:00 obsidian systemd[1]: getty@tty1.service has no holdoff time, scheduling restart.
Mai 22 11:51:00 obsidian systemd[1]: Started Getty on tty1.
Mai 22 11:51:00 obsidian systemd[1]: Starting Getty on tty1...

The failed authentication for user "journ-f" indicates that I am somehow writing on the other tty while I am writing in a terminal too. I started journaltctl -f thats where the username comes from.

Any ideas what could be the problem? Or how I could investigate this further?

Based on your statements you have the same issue which I have, I've narrowed it to LightDM - though I don't have a fix beyond disabling LightDM for now, also using i3wm...

Last edited by gehidore (2015-05-24 07:54:44)

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Windows get broken, penguins rarely get sucked into jet engines.

gehidore

IRC Op

From: Near the pine trees

Registered: 2012-11-09

Posts: 35

Re: sometimes unable to switch tty

Fixed this for myself by setting

minimum-vt=7

in /etc/lightdm/lightdm.conf

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Windows get broken, penguins rarely get sucked into jet engines.

dice

Member

From: Germany

Registered: 2014-02-10

Posts: 413

Re: sometimes unable to switch tty

Thanks I will try this. But I found I can very well live without a DM at the moment

Last edited by dice (2015-06-17 12:46:18)

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I put at button on it. Yes. I wish to press it, but I'm not sure what will happen if I do.  (Gune | Titan A.E.)