Errors in 1 out of 3 OS's

Hi there!

I bought an Arduino Micro and I am getting the following errors while uploading on Arch Linux (Angergos), the exactly same code and exactly same setup (unmodified original) are working on the exactly same machine under * Ubuntu * Windows

But it doesn't at Antergos - why? What am I doing wrong here? Thanks!

Error Logs:

I broke it down to:

sudo avrdude -patmega32u4 -cavr109 -P/dev/ttyACM1 -e
Connecting to programmer: .avrdude: butterfly_recv(): programmer is not responding

Happens nearly all the time in my currectly running OS (Antergos), super strange.

But it looks like I am not the only one: