Ubuntu 17.04 keyboard not responding after suspend

Solution 1:

Basically, run this in a shell to confirm you are applicable to this solution:

dmesg | grep i8042

and confirm you get this output

[ 1.514469] i8042: PNP: PS/2 Controller [PNP0303:KBC,PNP0f13:MOUE] at 0x60,0x64 irq 1,12
[ 1.525273] serio: i8042 KBD port at 0x60,0x64 irq 1
[ 1.525287] serio: i8042 AUX port at 0x60,0x64 irq 12
[ 1.526035] input: AT Raw Set 2 keyboard as /devices/platform/i8042/serio0/input/input3
[ 21.927438] input: SynPS/2 Synaptics TouchPad as /devices/platform/i8042/serio1/input/input10

then, add the boot parameters i8042.direct and i8042.dumbkbd to /etc/default/grub. For example, run

sudo nano /etc/default/grub

Find the line that begins GRUB_CMDLINE_LINUX_DEFAULT= and edit it to include the new parameters, so that after your edit it looks something like

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

Save by pressing Ctrl+O, exit by pressing Ctrl+X, and run

sudo update-grub

Source: Some time traveler here on Ubuntu Forums

Solution 2:

@Saif has found the underlying driver which is behind the issue. However setting dumbkbd and direct is unnecessary / disables system control of LEDs like Caps-Lock.

For most vaios instead resetting the controller will also correct the problem whilst maintaining this functionality. I.e. in the grub config file -

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash i8042.reset"

Then

sudo update-grub

Solution 3:

My ThinkPad E531 mouse and suspend functions works again after:

GRUB_CMDLINE_LINUX_DEFAULT="atkbd.reset=1 i8042.nomux=1 i8042.reset=1 i8042.nopnp=1 i8042.dumbkbd=1 quiet splash"

sudo update-grub