Re: x and virtual consoles

[Ed <ed-debian@s5h.net>]

On 2019-08-05 16:59-0500, David Wright wrote:
> Perhaps this is all to do with your DM. I use startx, and since
> stretch the Xserver runs "on top of" the VC that started it, and
> as the user, not root. In the past, Xservers ran as root on VC7,
> VC8, …

Does lightdm or gdm act as your greeter? I have not reproduced this 
between xsessions started by tty login, only ever the session started by 
lightdm crashes.

Tried to force a x session on vt8, but that responds with 'Permission 
denied' when doing that. I think system d sets up the permissions of 
tty1 when you use that console:

  crw------- 1 ed   tty     4,  1 2019-08-06 06:57:48 /dev/tty1

[   757.147] (--) synaptics: ETPS/2 Elantech Touchpad: touchpad found
[   778.512] (II) AIGLX: Suspending AIGLX clients for VT switch
[   786.321] (II) AIGLX: Resuming AIGLX clients after VT switch
[   786.321] (EE) modeset(0): drmSetMaster failed: Invalid argument
[   786.321] (EE) modeset(0): failed to set mode: Permission denied
[   786.321] (EE)
Fatal server error:
[   786.321] (EE) EnterVT failed for screen 0
[   786.321] (EE)
[   786.321] (EE)
Please consult the The X.Org Foundation support
         at http://wiki.x.org
 for help.
[   786.321] (EE) Please also check the log file at "/var/log/Xorg.0.log" for additional information.
[   786.321] (EE)
[   786.321] (II) AIGLX: Suspending AIGLX clients for VT switch
[   786.376] (EE) Server terminated with error (1). Closing log file.

To eliminate my actions from this, I tried again without telling startx 
which vt to use, and the error above happened on the *second* switch 
back to vt7.

-- 
Best regards,
Ed http://www.s5h.net/