$ tty
/dev/tty2
$ screendump 1
/dev/tty1: Permission denied
screendump: Couldn't read /dev/vcsa1
$ vcsnoop /dev/tty1 | head -n 4
Debian GNU/Linux bookworm/sid debian tty1
debian login:
$ tty
/dev/tty2
$ screendump 1
/dev/tty1: Permission denied
screendump: Couldn't read /dev/vcsa1
$ vcsnoop /dev/tty1 | head -n 4
Debian GNU/Linux bookworm/sid debian tty1
debian login: