i have installed Ubuntu 12.10 (64bits) (3.5.0-18 kernel) on an ASUS N56VM. Most fn+key are working except for:

• brightness keys (fn+f5/fn+f6) don't work.
• fn+c - gamma keys
• fc+v - camera
• fn+space - toggle speed.

I really like, at least, to have the brightness keys working.

Can you help? Best Regards

$ dmesg | grep -i asus 
[    0.000000] DMI: ASUSTeK COMPUTER INC. N56VM/N56VM, BIOS N56VM.206 04/13/2012
[    0.000000] ACPI: RSDP 00000000cafcc000 00024 (v02 _ASUS_)
[    0.000000] ACPI: XSDT 00000000cafcc078 00074 (v01 _ASUS_ Notebook 01072009 AMI  00010013)
[    0.000000] ACPI: FACP 00000000cafdf858 000F4 (v04 _ASUS_ Notebook 01072009 AMI  00010013)
[    0.000000] ACPI: DSDT 00000000cafcc188 136CA (v02 _ASUS_ Notebook 00000013 INTL 20091112)
[    0.000000] ACPI: APIC 00000000cafdf950 00092 (v03 _ASUS_ Notebook 01072009 AMI  00010013)
[    0.000000] ACPI: FPDT 00000000cafdf9e8 00044 (v01 _ASUS_ Notebook 01072009 AMI  00010013)
[    0.000000] ACPI: ECDT 00000000cafdfa30 000C1 (v01 _ASUS_ Notebook 01072009 AMI. 00000005)
[    0.000000] ACPI: MCFG 00000000cafdfaf8 0003C (v01 _ASUS_ Notebook 01072009 MSFT 00000097)
[    0.000000] ACPI: SLIC 00000000cafdfb38 00176 (v01 _ASUS_ Notebook 01072009 ASUS 00000001)
[    0.000000] ACPI: HPET 00000000cafdfcb0 00038 (v01 _ASUS_ Notebook 01072009 AMI. 00000005)
[    0.000000] ACPI: BGRT 00000000cafe1090 00038 (v00 _ASUS_ Notebook 01072009 ASUS 00010013)
[    9.670500] asus_wmi: ASUS WMI generic driver loaded
[    9.671627] asus_wmi: Initialization: 0x1asus_wmi: BIOS WMI version: 7.9
[    9.671673] asus_wmi: SFUN value: 0x6a0877<6>[    9.672086] input: Asus WMI hotkeys as /devices/platform/asus-nb-wmi/input/input4
[    9.732438] Registered led device: asus::kbd_backlight
[    9.733242] asus_wmi: Backlight controlled by ACPI video driver