Notebook Video, Display and Touch

Start up laptop.  Use camera to log me in, so I have not touched the keyboard or touchpad.  No flickering until you touch the keyboard.  Flickers a few times, then goes black. Touching keyboard will bring up the normal screen for a few seconds, then back to black. Hold down power button and wait for it to shut off.  Hold down power button so that it starts up, again.  It will now boot up without the problem.  At all.  Will now run forever without any problems until you shut down. Then upon startup you will have the same problem.  This problem first started about a month ago.  I cannot link it to any new hardware or software update.  

What have I done to diagnose? Went into Device Manager and updated drivers (keyboard, touchpad, monitor, graphics card).  Went to various manufacturers' websites and got driver update tools and used them. Updated Windows.  Recovered windows (a short, easy process).  Reinstalled windows (lengthy complete redo of windows).  Check my anti-virus.  Brought it to the local tech shop for analysis. They were able to recreate the problem but could not fix. I ran the HP diagnostics.  The Windows diagnostics.   This cannot be a hardware issue because I can temporarily fix by powering down and powering up. 

So, problem appears to be a conflict between the touchpad/keyboard software and the monitor software.  Any bright ideas?