UserAgent: Mozilla/5.0 (Windows NT 6.3; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.81 Safari/537.36
Platform: chromebook

Steps to reproduce the problem:
1. press Power+Fresh key;
2. typing keyboards randomly all the way while OS is booting;
3. OS screen shows login,but the chromebook keyboard can not be used.

What is the expected behavior?
I can use chromebook keyboard all the way.

What went wrong?
It seems kernel driver can not be probed for i8042 keyboard.

2018-11-08T16:09:36.632191+08:00 INFO kernel: [    0.518750] i8042: PNP: PS/2 Controller [PNP0303:PS2K] at 0x60,0x64 irq 1
2018-11-08T16:09:36.632192+08:00 WARNING kernel: [    0.518752] i8042: PNP: PS/2 appears to have AUX port disabled, if this is incorrect please boot with i8042.nopnp
2018-11-08T16:09:36.632198+08:00 WARNING kernel: [    0.519429] i8042: Warning: Keylock active

Did this work before? No 

Chrome version: 64.0.3282.190(official build)(64-bit)  Channel: stable
OS Version: 10176.76.0
Flash Version: 29.0.0.113

when this issues occurs,i can connect another USB keyboard,the keyboard can work
 

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