i can assure you your last comment is not correct. if it was i would have been called out long ago.
do i sell laptops yes.
but thats not the point.
you do enough forum searchs you will see how many people have had issues.
having tested countless laptops (looking for one to sell) most do not work.
there are numerous issues with newer laptops. you have to realize that laptops are designed for the masses, the thought of using a laptop as a workstation anymore
is well the manufacturers dont get it...
because of this many issues have popped up in present laptops.
1) if there is firewire it wont be TI and chances of it working are extremely thin. Usually (Ricoh, jmicon)
2) most laptops dont have firewire, so the only option is adding an Express card with TI chipset.
however this rarely works. it has a lot to do with how the bios is written, and how Vendor ID is dealt with.
""Also known as a VID, a vendor ID is a unique number assigned to each computer hardware device that helps a computer identify the hardware being installed in the computer. Most vendor IDs start with 0x, for example, 0x9710 or 9710 is an example of a Vendor ID. Other Vendor IDs may be the first few letters of the company's name or an abbreviation. ""
this is one of the reasons the RME works better than a stock Fireiwre express card. it has a specific vendor ID where most firewire cards are read as non specific.
they still dont work in at least 50% of laptops however
3)designed for long battery life. again this is the cry of the masses give us long battery life, give us "green", give us really good wifi.
so ther are a good deal of things in the bios that are designed to SAVE power not use it. and put power where it should not (wifi)
thus making the Express slot under volted most of the time. (vendor ID tells the bios to up the voltage for the RME)
the Firewire port (if ther is one) can also suffer from this or suffer from sleep states whisch is my next statement.
4) C-States (various states of reduced power to the Processor) aka sleep states.
see this thread C1E, C3, C6, EIST, Speedstep, Turbo Boost, Core parking
with the laptop bios you do not have the options of turning these off (our laptops have custom bios' wrote with these off and other things)
5)DPC latency. you can download a program called DPC latency checker..
this never use to be an issue (well at least not as previlent as it is now) you can be an issue with Desktops as well.
DPC issue can come from numerous problems. WIFI is the big one, (disbale in windows doe not always fix issue) others are ACPI battery (this can be disabled in windows) as several other tweaks
but often even after doing all the windows tweaks you still have a laptop thats near useless.
DPC can and will come from the video card of the laptop (or desktop) onboard intel video or dedicated video can still cause DPC.
2 of our laptops we had to lock down the video card to its slowest speed (fine for audio) (again in the bios you can't do this any other way)
there is a lot more to this but i think i have already said too much.
now with that said i have seen a small handful (very few) who say that have laptop x working with firewire.
how well i cant say. To me being able to run @ 64 buffer or at most 128 with a 40-50 track project and effects and VSTi is my idea of working.