Does Alt + SysRq work on Librem laptops?


#1

I am aware that the sysRq key needs to be configured at kernel compile time and I was wondering if anyone can shed some light at so the kernel configuration on the PureOS distro.

Can one use Alt + SysRq + F say or some other combination to recover from a frozen UI screen?

I tried it on one of my many freezes and found the screen to go black (just a black screen) and nothing more, forcing me to do a hard reboot.


#2

Edit /etc/sysctl.d/99-sysctl.conf to add kernel.sysrq = 1, save and restart.


#3

thanks @mladen for the solution. Any particular key combinations to use?


#4

See http://www.linuxhowtos.org/Tips%20and%20Tricks/sysrq.htm