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Cannot open virtual Console

If you see this line in the log:

Log

xf86OpenConsole: Cannot open virtual console 2 (Permission denied)
  • Run cat /etc/X11/Xwrapper.config

This should have the line allowed_users=anybody in it

  • Run cat /etc/group | grep tty

If your username is not listed under that line, you need to add it with the following command:

usermod -a -G tty pi
(if your username is not 'pi' change 'pi' to your username)

Restart KlipperScreen: 

sudo service KlipperScreen restart

If it's still failing:

add needs_root_rights=yes to /etc/X11/Xwrapper.config:

sudo bash -c "echo needs_root_rights=yes>>/etc/X11/Xwrapper.config"

Restart KlipperScreen: 

sudo service KlipperScreen restart