Hi Iru,
Recently, I flashed libreboot to my X200s (with L9300 CPU). But it seems that there are some EC problems in X200s, which I haven't found in a X200.
Be aware that there are different EC versions. One should therefore upgrade the BIOS/EC (one process) to the latest version before flashing core/libreboot. EC updates are known to fix bugs and also to improve battery handling.
Can you please post the output of: cat /proc/asound/cards
You can still upgrade the EC, but it's much work. You'd have to flash an older BIOS version with flashrom , then upgrade with the regular stock ISOs to latest BIOS/EC version [0], which will update also the EC firmware, and then reflash libreboot.
- At last I bought a factory battery, the first two problems will not
appear. In these two days, I found that when I charge with a 90W adapter, the CPU will get very hot and the laptop will shut down. It seems that it'll not happen with a 65W adapter.
Some user on #libreboot reported that with an X200 Tablet (similar hardware) and EC v1.06 he had *not* this issue.
Regards,
Merlin
[0] http://www.thinkwiki.org/wiki/BIOS_update_without_optical_disk