@PulkoMandy answered your question, but you can also check how many people affected by non-standard ACPI tables, just search for "DSDT patching".
Maybe you can search for pre-patched DSDT for your Laptop too. Haiku doesnt provides any way to override the BIOS provided one, but you can load it with 3rd Party bootloaders.
Or you can extract it from your BIOS, decompile it, and you can try to recompile the results, to See how many problems lurking in it. Prepare yourself, it will be surprising.
Just forgot that concept, that it is just a printed circuit. Your motherboard is a frickin complicated stuff, and it doesn't speak the standard. And every motherboard comes with different DSDT. And every BIOS update also introduces a different DSDT, with different quirks.
FYI: he DSDT programming guide is more than 3000 sites long. A fun night-read... I really like it, one can Do cool hacks with it.
Other solution: check your computer-specific Linux ACPI patches and try to implement it for Haiku, or complain to your hardware OEM.