Arduino Uno freezing after a second

I've compiled the toolchain using crossdev on Gentoo, so it's possible this is the cause - I'll try the precompiled one on a Windows machine later.

When I try to run the blink example, it will turn the LED on (or off if I make that the first statement), then just hang there. I've tried various combinations of pressing the reset button and uploading, and I've tried an external PSU.

I know it’s been a while, but I finally got around to trying it on a Windows computer. It worked. I then found a post saying binutils 2.21 didn’t work properly with the Arduino - downgraded to 2.20, by masking 2.21 in /etc/portage/package.mask , all working now :smiley:

Just posting in case anyone else has the issue.