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These posts are quite old ;) You should try the new FASTLED 3.1 library! https://github.com/FastLED/FastLED/tree/FastLED3.1
Good luck!

Try this experimental Library! It works great!

https://github.com/FastLED/FastLED/tree/FastLED2.1

Dear PJRC Community,

since a few days, i changed from a Teensy 3.0 to a Teensy 3.1. Both are wired directly with a WS2801 (Data on Pin 11 and Clock on Pin 13) LED Matrix (50 LEDs in a row).
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