Lenovo Thinkpad X220
Overview
- Intel i5-25[24]0M CPU (Sandy Bridge)
- Two core, hyperthread CPU
- Intel integrated graphics
- Intel Centrino 6300 WiFi
Notes
- Suspend/resume works
- Video suspend/resume requires vt(4) and dri2 to be loaded
- Brightness keys work after r270516 (you have to start X at least once); acpi_video works to control brightness with the same caveat
- acpi_ibm(4) reports fan speed, but most of the control sysctls do not work
- Mute and volume controls work
- External displays can be hotplugged while in X, but must be explicitly enabled via xrandr
- Booting / disk layout issues
- The BIOS does not handle GPT-labelled disks that boot via BIOS (default install layout for FreeBSD). It seems to assume that the present of a GPT means it should expect an UEFI partition. Using MBR partition and BSD label with UFS works fine.
- Using ZFS with MBR is reported to not work with FreeBSD's bootloader (but does work with grub) See PR#194359 for the bug report and fix
- Booting with UEFI works