Comment 1 for bug 64281

Here is the dmesg output, it does detect the and init sonypi module. This line may be relevant. I do not know why fnkeyinit is off
sonypi: detected type3 model, verbose = 0, fnkeyinit = off, camera = off, compat = off, mask = 0xffffffff,
useinput = on, acpi = on