====== Dell Latitude E7470 ======

===== Hardware Overview =====

  * CPU: Intel(R) Core(TM) i7-6600U CPU @ 2.60GHz (2808.14-MHz K8-class CPU)
  * Wireless: Intel Dual Band Wireless AC 8260, supported by ''%%iwm(4)%%'', works
  * Wired Ethernet: Intel(R) PRO/1000 Network Connection 7.6.1-k, supported by ''%%em(4)%%'', works
  * Graphics: Intel Skylake, supported by [[https://github.com/FreeBSDDesktop/freebsd-base-graphics|drm-next]] branch, works with some issues with external connectors
  * Sound: Realtek ALC293, works, also correctly detects plugging in the headphones
  * Suspend/resume: untested
  * Fn keys: only toggling keyboard backlight works; other keys (volume, display brightness, wifi toggle) do not

===== Config required =====

  * Add kld_list="if_iwm" to /etc/rc.conf
  * Display brightness is too high by default. It can be tuned with https://github.com/FreeBSDDesktop/intel_backlight_fbsd, but it's reset when display goes to sleep. I've ended up by tuning it in the BIOS.
  * May also add coretemp to kld_list

===== Issues =====

  * Problems with plugging/unplugging external monitors
    * You may need to restart xorg to make all external video outputs detected
    * When you disconnect all external outputs you cannot get them back until reboot 
    * See https://github.com/FreeBSDDesktop/freebsd-base-graphics/issues/155

===== Notes =====

  * Don't forget to add your user to **video** group for xrandr to work properly
  * Removing xorg.conf is also recommended, as having it may interfere with dynamic detection of external displays and lead to system panics.