Comment 102 for bug 2034477

I have now tried to apply the i8042 options together with the 3 different IRQ types. Interestingly they all make the keyboard work, but with the same extreme delay as previously mentioned. It doesn't seem that i8042.direct was never needed since it works fine with just "i8042.noloop i8042.dumbkbd i8042.nopnp".

The "dmesg | grep i8042" reads the same for all of them:

i8042: PNP detection disabled
serio: i8042 KBD port at 0x60,0x64 irq 1
serio: i8042 AUX port at 0x60,0x64 irq 12
input: AT Translated Set 2 keyboard as /devices/platform/i8042/serio0/input/input3

It seems that the AUX port is vital for the keyboard to work, since it only works whenever "AUX port at 0x60,0x64 irq 12" is displayed. This confuses me since I always thought that the AUX port was for the mouse/trackpad.

I tried to add some debug prints in the i8042 code and it seems that i8042_pnp_aux_probe in i8042-acpipnpio.h is never called, which prevents the AUX port from being created. Does this mean that the AUX port could not be found or is it just the IRQ failing? Nothing else in the code seems to be returning any errors.