I use a debian 9 with Magic Sys Keys enabled :
sysctl -a | grep sysrq kernel.sysrq = 1
if I trigger in CLI, it works :
echo f > /proc/sysrq-trigger
I have something like :
emergency sync trigerred
But when I try to do alt+Print/Syst+s from tty1, I switch from tty1 to xorg tty7 with in xorg log :
[ 1019.608] (II) AIGLX: Suspending AIGLX clients for VT switch [ 1044.548] (II) AIGLX: Resuming AIGLX clients after VT switch
$ uname -r 4.9.0-6-amd64
I use xfce4 4.12.3
No keyboard shortcut with this combo in xfce4 applications menu -> parameters -> keyboard -> keyboard shortcuts (translated from my mind French to English)
I tried with a fresh new user and it's the same problem.
I tried with no xfce4 session, just tty1 and lxdm on tty7, I still switch to lxdm tty7 if I type the keyboard shortcut
Any clue ?
Same thing with cinnamon DM 3.2.7, if I hit alt+Print/Syst+s from tty1, I switch from tty1 to xorg tty