Experiences with Gentoo on IBM/Lenovo x60s

I'm not going to write a howto on how to configure Gentoo to run on the IBM x60s but just note some of the problems I've encountered:

- All recent ALSA versions I've tried hangs during bootup. I've used to workaround this by reloading alsa in /etc/conf.d/local.start. Thanks to eryf I solved it now by enabling the modem.

- ipw3945 doesn't bring up the wireless interface properly. I've solved this too by rmmod ipw3945, modprobe ipw3945 and restart net.eth1 in /etc/conf.d/local.start.

- Apparently the kernel fails to detect eth0 (03:00.0 Network controller: Intel Corporation Unknown device 4227 (rev 02)) when booting on batteries. Thanks to kloeri I discovered that it was an EEPROM checksum issue.

- Strange noise due to powersaving when running on batteries. AFAIR this can be solved by basically turning of the power saving features. Not solved as I want power saving.

- Battery time is much less than the 8h I've read about somewhere on the net. Not solved.

Other than that it's basically the same as my old (and now bricked) IBM x31. Only things that are different are 25% lighter and the problems described above.