I followed the procedure at https://wiki.ubuntu.com/DebuggingKeyboardDetection and am attaching the files listed there.
It looks like this one (dmesg_diff) contains an error message that occurred when the keyboard stopped working.
I followed the procedure at https:/ /wiki.ubuntu. com/DebuggingKe yboardDetection and am attaching the files listed there.
It looks like this one (dmesg_diff) contains an error message that occurred when the keyboard stopped working.