Hello all Which of these USB Controller-Keyboards are known to work with (debian) linux? Is one recommendable for any reason? I could not find most of them in the alsa sm (soundcard matrix). Is the matrix up-to-date? Edirol PCR M1 - (yes) Evolution (MAudio) MK-425C - (?) MAudio o2 - (?) MAudio Oxygen8 - (?) Alesis Photone25 - (?) Emu XBoard25 - (?) Thank you, Emanuel