FreeBSD on Asus UX31A

[Lutz Bichler]

Hi,

after reading the summaries of Asus UX31E and UX32VD i did some testing of 
FreeBSD on an Asus UX31A:

Hardware
--------------
Intel Ivybridge CPU + graphics 
Centrino(R) Advanced-N 6235 WiFi
USB 2.0 + 3.0
Realtek Cardreader (Product-Id 0x139)

Software    
-------------    
- FreeBSD-CURRENT (svn274583)
  - acpi_asus_wmi & acpi_asus loaded
- xorg-7.7
- xorg-server-1.16.1
- Mesa 10.3.2
- xf86-video-intel-2.99.916

Results
----------
- F1: 			Suspend function key works
- F2: 			WiFi function key does not work
- F3/F4: 		Keyboard brightness control works
- F5/F6:		Display brightness control does not work
- F7: 			Display on/off works
- F8:			not tested
- F9:			not tested
- F10: 		Volume on/off does not work
- F11/F12: 	Volume control works

- Suspending works
- Resuming:
  - i915 only
    - no display after resume
  - acpi_video loaded before i915kms: 
    - no display after resume
  - acpi_video loaded after i915kms
    - display coming back, but display brightness after 
      resume is lower although hw.acpi.video.lcd0.brightness 
      reports the same value
    - Display brightness control partly works
      - sysctl hw.acpi.video.lcd0.brightness=X works
      - function key changes the brightness, but only allows 
        to switch between brightness levels 1 and 2.
      - changing the brightness level from 100 to  30 reduces
        the power consumpion from 11.5mW to 8.8mW.
  - with i915.7 patch (http://kib.kiev.ua/kib/drm/i915.7.patch)
      - display coming back (with and without acpi_video)
      - Display brightness control does not work (neither with nor without 	
	acpi_video)

- WiFi (Intel 6235): works 
- CardReader (Realtek Product Id 0x139): does not work

Open questions
-----------------------
- How to automatically load acpi_video after i915kms? 
- How to enable presetting the display brightness?
- How to enable a smooth function key based brightness setting?
- Is there any hope for the card reader? 
	- There have been several mailing list threads in the past but it seems 
	  they all ended up without conclusion.

Regards, Lutz