I have a strange ongoing problem with my laptop. It's a single-core CPU with a top speed of 1.6Ghz and I use it for everything including programming old custom hardware through serial and parallel ports.
I'm running slackware 13 (Linux).
If I turn ACPI on then the fan problem goes away if I choose to run the system at a slower CPU speed, however when I try using the parallel port to program old hardware with ACPI on, then programming fails at least 50% of the time.
If however I disable ACPI completely in linux, then programming for the parallel port works completely, however my system reports the max CPU speed being used, and running some applications like Firefox makes my fan continuously go.
In my bios, I have no options for configuring the parallel port. and my computer is Latitude D600.
I already have the port setup in AT/SPP mode in the bios which is what the external hardware needs in order to be programmed.
Is there a way in Linux I can set it up so the fan does not constantly run from running todays applications and at the same time the parallel port works? I don't mind if it involves installing an additional driver that works or configuring something else in a linux config file.