[LAD] jackd not using jackdrc...

Hi all, After migrating to a freshly installed system, it seems jackd has decided not to honor my settings in $HOME/.jackdrc anymore. I have a (minimal, no deskop) install of ubuntu 17.10 and jackd1 when I startt my jack client it prints: creating alsa driver ... hw:MADIFXtest|hw:MADIFXtest|1024|2|48000|0|0|nomon|swmeter|-|32bit but the contents of of ,jackdrc is: /usr/bin/jackd -p512 -dalsa -r48000 -p64 -n2 -D -Chw:MADIFXtest -Phw:MADIFXtest So I’m getting a period size of 1024 rather that 64. copying .jackdrc to /etc/jackdrc also didn’t help. Any idea why jack is refusing my settings? This was working fine on my other system which should be more or less identical, but obviously i'm missing something rather crucial here… thanks! fokke