ubuntu睡眠唤醒后键盘失灵

此现象主要出现于索尼VAIO笔记本，应该是键盘控制器的问题，来自StackExchange，自己根据自己的情况稍微修改了下。

问题 Problem：

My Sony Vaio SVF14N with 64-bit Ubuntu 16.04 installed with windows has a problem. Every time it resumes from being suspended, neither the keyboard nor touchpad work for a few seconds. Then the touchpad becomes responsive but the keyboard still remains non-responsive.

I've tried all the answers on the Chinese website however none of them work. At last i found the answer on StackExchange and partly solve the problem.

解决方式 Solving ways：

Terminal-sudo gedit /etc/default/grub

Find the line GRUB_CMDLINE_LINUX_DEFAULT 

and Edit it like

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash i8042.direct i8042.dumbkbd"

Running  sudo update-grub and then reboot 
依然存在的问题 Problems still existing：

Although the CapsLock light will always  be on after resuming from being suspend, and it still need 10 seconds to let the keyboard 'WAKE UP', i needn't reboot my laptop or disable the sleeping mode.

猜测 Guessing：

It seems like to be the problems of the new kernel of Ubuntu because i successfully run Ubuntu without any flaws 1 year before.

The new kernal may be the enemy of the keyboard controller i8042 used pervasively by Sony