acpi and touchpad under 5.2-current

[Andreas Heinze]

hi,
i have a little problem with using acpi and and my touchpad on my laptop 
(Averatec 5120CJ) at the same time.
If i enable acpi at startup, i'm not able to use my touchpad (e.g.: 
"sysinstall --> enable mouse" fails), so i have to plug in my external usb 
mouse which works fine with acpi enabled. If i disable acpi at startup i 
can use my touchpad without any problems.
Did anyone knows why this happens and how i can fix it? Is there an 
interupt problem?

thanks, andi.