HP ProBook 6730b - internal touchpad and keyboard not working

I tried to install Haiku (latest nightly) 64 Bit on a HP ProBook 6730b.

Booting from stick worked fine. Live system works.

But when I boot the installed Haiku, the internal touchpad and the internal keyboard won’t work. External USB mouse and keyboard works fine.

Why is the touchpad working in the live system on the stick, but not in the real system. Any ideas?

As usual, your best bet is probably to submit a bug report at https://dev.haiku-os.org. See https://dev.haiku-os.org/wiki/ReportingBugs for more information.

Hi, I found a solution: If I disable the HDD DMA in the debug-screen, touchpad and keyboard works fine.

Do you think this is a bug, or is this related to any settings?

Looks like a bug indeed. It may be some problem with interrupt management. When you leave the DMA enabled, is the CPU use constantly to 100%? (you can see that as a blue bar in ProcessController in the Deskbar for example, even without working keyboard/mouse).