I'm on HP Pavillion laptop (HP Pavilion 15-AU030NG) with Windows10 x 64. I'm experiencing a weird behavior of the in-build keyboard since some time:
If i plug out my usb keyboard, so the in-build laptop PS/2 keyboard remains dead, until i restart the laptop. After restart the in-build keyboard works as expected.
Case 2 (usb-keyboard is not plugged in)
After the laptop wakes up from energy-saving mode or from hibernation state, the inbuild keyboard remains again dead - until restart. After restart the keyboard is up and riunning.
I suppose as a cause a Windows update, which has killed any service - but i could be wrong with my suppose.
Please point me to probable causes of the problem - specially to Windows services, responsible for în-build keyboard.
PS: i activated in the device manager→PS/2 keyboard an option "make waking up by keyboard possible" - no success by this.