Description of problem: The system is a Compaq R3000z (Athlon64) with multi-boot systems installed. WinXP is installed in hda1 (squoze down), a minimal FC3 i386 in hda3, swap as hda2, FC3 i386 everything install in hda5 and FC3 x86_64 everything install in hda6. The problem occurs with both i386 and x86_64 systems. The synaptics touchpad works fine with WinXP. It also works fine with ACPI=ON for both i386 and x86_64 (comes up as a "generic" PS2 two-button input device). However, booting with ACPI=OFF, the synaptic touchpad is not detected. Version-Release number of selected component (if applicable): FC3 with all "current" updates applied including kernel 2.6.9-1.698_FC3
I am closing this NOTABUG. With the latest BIOS upgrade from HP (F33 or SP29481.EXE) I am able to have both the snaptic touchpad and USB mouse work with acpi=on which is a better solution.