My laptop keyboard and trackpad stops working suddenly because of ACPI bios error

[shadowblade]

i have to suspend and start again to use keyboard and trackpad again. This problem does not happen to external keyboard and mouse

 

[osprey]

i have to suspend and start again to use keyboard and trackpad again. This problem does not happen to external keyboard and mouse

Firstly, it's wise to check the journal for any information that it may have about errors with a command in the terminal such as:

journalctl -b | grep -iE '8042|keyboard|touch'

For information about the previous boot when this keyboard issue did occur one can run:

journalctl -b -1 | grep -iE '8042|keyboard|touch'

There may be some other messages output with the following command in a terminal which may need root's privileges to run:

dmesg | grep -iE '8042|keyboard|touch'

Look for errors or failures referred to in the output.

There are several other things to try.

A few kernel parameters have been useful for some users and may help this situation. In particular these two:

i8042.direct i8042.dumbkbd

They can be added to the kernel boot line. Instructions for how to do that can be found here: https://linuxconfig.org/how-to-set-kernel-boot-parameters-on-linux

Hopefully that's a start for the investigation. Personally, I don't suspend laptops because I found it not so reliable in linux. YMMV.