Update on Lenovo W540

[Eric McCorkle]

On 08/17/2014 16:38, Henry Hu wrote:
>> * The acpi_ibm and acpi_video drivers load, but the keys don't seem to
>> work.  Is there some config file that needs to be written to map the keys
>> to the right functions?  Also, setting the hw.acpi.video. variables doesn't
>> seem to do anything.
>>
>> There are apparently two devices: lcd0 and lcd1
>> hw.acpi.video.lcd[01].active are both 0, and attempting to set them to 1
>> does nothing.  The .brightness, .fullpower, and .economy variables likewise
>> seem to have no effect.
>>
>
> You may try the patch at
> https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=190186
> and see if it helps.

Got a chance to try it out.  Unfortunately, it doesn't seem to work... 
Any suggestions?