This one recognizes the Chip. The sound chip gave me a bit more trouble. It is a PCI device, but it is not known to the kernel, the standard sound modules fail to work. I downloaded the most recent version of ALSA , but that did not work, either. Sound from the built-in speakers is not very great, especially when the battery pack is not inserted.
Headphones are fine.
Starting with version 0. 07, it works for me, at least there is sound output. Just select Maestro support when compiling your kernel. Now also the microphone works. APM Not yet sure about that. I compiled a kernel with APM support, but on first try nothing happened at all.