Problem is too complex to fit in Subject line.
First, my keyboard had some dead keys, so I replaced it with a new keyboard . The replacement keyboard started to make Enter keystrokes randomly by itself. I restarted the Lenovo Ideapad, and now the internal keyboard doesn't work. Also, Kubuntu doesn't recognize the internal touchpad. I must use an external USB keyboard and mouse.
Note: After the Power On Self Test, an error code, white on black, flashes onto the screen for only one second so I can't save it.
I think the replacement keyboard is not faulty, since all buttons work, but the random keystrokes problem occurs in Windows 10. Those random keystrokes keep me from selecting anything but Windows.
ahmet@ahmet:~$ xinput ⎡ Virtual core pointer id=2 [master pointer (3)] ⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)] ⎜ ↳ MOSART Semi. 2.4G Wireless Mouse id=11 [slave pointer (2)] ⎣ Virtual core keyboard id=3 [master keyboard (2)] ↳ Virtual core XTEST keyboard id=5 [slave keyboard (3)] ↳ Power Button id=6 [slave keyboard (3)] ↳ Video Bus id=7 [slave keyboard (3)] ↳ Power Button id=8 [slave keyboard (3)] ↳ Video Bus id=9 [slave keyboard (3)] ↳ LITE-ON Technology USB NetVista Full Width Keyboard. id=10 [slave keyboard (3)] ↳ Lenovo EasyCamera: Lenovo EasyC id=12 [slave keyboard (3)] ↳ Ideapad extra buttons id=13 [slave keyboard (3)] ↳ AT Translated Set 2 keyboard id=14 [slave keyboard (3)] ahmet@ahmet:~$
FOLLOW THROUGH POST:
the error starts with: system bootorxer not found initial
Suddenly the internal keyboard behaved, no random Enter keystrokes; then it returned, and the touchpad doesn't work, so it's back to the external USB keyboard and mouse.