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In the old days, I configured acpid to launch vlock-cmatrixreloaded when I press Fn + F2, now it no longer works since systemd handles TTYs, I just got a screen flash when I press those keys.

The only way to invoke it is launch it manually from a tty or xterm, anyway to fix that?

EDIT

Fn is a standard function key (like shift) on laptops, and acpi_listen prints:

button/screenlock SCRNLCK 00000080 00000000 K

And in acpid's handler.sh:

button/screenlock)
    /usr/bin/vlock-cmatrixreloaded -ans
    ;;

Download source code here

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What fn-f2 does? I mean, what acpi_listen prints, when your press it. Show acpi config, related to this. –  int Nov 24 '12 at 11:06
    
@int updated question area –  warl0ck Nov 24 '12 at 12:07
    
@int oops, I made a stupid mistake, vlock works, but I'm running vlock-cmatrixreloaded on my system –  warl0ck Nov 24 '12 at 12:10
    
If vlock works, then it is better to check differences between vlock and vlock-cmatrixreloaded. You can ask maintaner of this package in AUR(i guess, you use ArchLinux) or author of this program to fix this issue, if it is possible. I think, it is only way. –  int Nov 24 '12 at 12:25

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