====== Lenovo Thinkpad X220 ======

===== Overview =====

  * Intel i5-25[24]0M CPU (Sandy Bridge)
  * Two core, hyperthread CPU
  * Intel integrated graphics
  * Intel Centrino 6300 [[/WiFi|WiFi]]

===== Notes =====

  * Suspend/resume works
  * Video suspend/resume requires vt(4) and dri2 to be loaded
  * Brightness keys work after [[http://svnweb.freebsd.org/base?view=revision&revision=270516|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

===== See Also =====
  * [[http://www.thinkwiki.org/wiki/Category:X220]]
  * [[SteveWills/BTSpeaker]] 

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{{tag>Laptop Thinkpad Mobile}}