PS/2 keyboard non-functional after resume with i8042.nopnp

Dear Linux folks,


On an ASRock E350M1 and a PS/2 keyboard connected, starting it with 
`i8042.nopnp`, the PS/2 is detected and works fine. In this case I am 
using Linux 4.10.

kernel: i8042: Probing ports directly.
kernel: serio: i8042 KBD port at 0x60,0x64 irq 1
kernel: serio: i8042 AUX port at 0x60,0x64 irq 12
kernel: mousedev: PS/2 mouse device common for all mice

Suspending and resuming the system, the PS/2 keyboard then doesn’t work 
anymore. As a workaround a keyboard connected can be used.

Using PNP, that means ACPI, the keyboard also works after resume.

Is that by design? As I don’t see any i8042 messages in the log after 
resume, I wonder, if the devices on the PS/2 controller should also be 
probed during resume by the Linux kernel.


Kind regards,

Paul