Comment 279 for bug 272247

I forgot to mention that this is some kind of bug/conflict with some HP laptops because the DSDT was compiled using Microsofts home brewed compiler. The Linux kernel/acpi do not like it. The aml compiler(iasl) in my how to was made by Intel, and is supposed to be universal. Microsoft is now pushing their version to Bios manufacturers, so this will probably only get worse in time.