Forgot to mention earlier on that this was on the i386 kernel.
I've reinstalled and I'm now running the amd64 kernel (with restricted modules) and it still doesn't work.
I've checked on HP's website and this is the latest BIOS revision for this laptop.
cat /var/lib/acpi-support/*-* has the same output as above, and the kernel version is the same.
Forgot to mention earlier on that this was on the i386 kernel.
I've reinstalled and I'm now running the amd64 kernel (with restricted modules) and it still doesn't work.
I've checked on HP's website and this is the latest BIOS revision for this laptop.
cat /var/lib/ acpi-support/ *-* has the same output as above, and the kernel version is the same.