Archive for July, 2017

N-Trig touch screens occasionally need re-calibration!

Saturday, July 29th, 2017

Since I finally got the touch-screen and pen of my Surface Pro 3 working in Linux I noticed it sometimes generates random phantom touches, or dead zones. Turns out this touch screen’s firmware have some internal re-calibration mode that can be run in that case:

2017 - when not even your touch screens work reliably anymore :-/

hey, ALSA’s arecord has a vu-meter

Friday, July 14th, 2017

who knew?

arecord -f cd -d 0 -vv /dev/null

;-)!