Special keys not working after installing newest kernel

[Riemer van der Zee]

Hello all,

I always build a custom kernel from torvalds/linux.git as a training 
exercise, however since today a few of the special keys are not working.
(As in/de-creasing and muting sound). I get the following errors after 
pressing one of these buttons:

[   47.976253] ACPI: \_SB_.ATKD: Unsupported event type 0x32
[   50.846828] ACPI: \_SB_.ATKD: Unsupported event type 0x31
[   51.209026] ACPI: \_SB_.ATKD: Unsupported event type 0x30


I also find the following messages worrying:

[    1.290958] ACPI Warning: SystemIO range 0x0000000000000428-0x000000000000042f conflicts with OpRegion 0x0000000000000400-0x000000000000047f (\PMIO) (20140214/utaddress-258)
[    1.290968] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver
[    1.290974] ACPI Warning: SystemIO range 0x0000000000000540-0x000000000000054f conflicts with OpRegion 0x0000000000000500-0x0000000000000549 (\SBGP) (20140214/utaddress-258)
[    1.290981] ACPI Warning: SystemIO range 0x0000000000000540-0x000000000000054f conflicts with OpRegion 0x0000000000000500-0x0000000000000563 (\GPIO) (20140214/utaddress-258)
[    1.290988] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver
[    1.290992] ACPI Warning: SystemIO range 0x0000000000000530-0x000000000000053f conflicts with OpRegion 0x0000000000000500-0x0000000000000549 (\SBGP) (20140214/utaddress-258)
[    1.290997] ACPI Warning: SystemIO range 0x0000000000000530-0x000000000000053f conflicts with OpRegion 0x0000000000000500-0x0000000000000563 (\GPIO) (20140214/utaddress-258)
[    1.291001] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver
[    1.291003] ACPI Warning: SystemIO range 0x0000000000000500-0x000000000000052f conflicts with OpRegion 0x0000000000000500-0x0000000000000549 (\SBGP) (20140214/utaddress-258)
[    1.291008] ACPI Warning: SystemIO range 0x0000000000000500-0x000000000000052f conflicts with OpRegion 0x0000000000000500-0x0000000000000563 (\GPIO) (20140214/utaddress-258)
[    1.291013] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver


The laptop is an Asus n61j and a version where the keys did work is:
01d5f3b598b18a5035426c30801adf65822dbd0c

my .config      : http://pastebin.com/cwar1Hk7
the whole dmesg : http://pastebin.com/9jmhLskD


Any pointers in how to fix this or if you require any more information
I'm glad to listen/supply. Are there any recent commits to the ACPI 
system I can take a look at?

Thank you!

Riemer van der Zee