My m15 has a 2070 Max Q-design and an in Intel UHD Graphics 630.  I have no interest in using the UHD graphics and I'm not sure why this laptop even has it.  I always go in to nvidia control panel and make sure it's set to the 2070.  I'm never going to play games on battery, so to me it's pointless.

Here's the problem.  I have been diagnosing weird performance issues, and have noticed that if I go in to device properties and disable UHD graphcis 630, my performance increases dramatically.  The laptop behaves as it should.  The problem is this will only work if I use an external monitor- if I am playing from the laptop itself, disabling the UHD graphics option for some reason also disables the 2070.  I am prevented from going in to control panel, and starting up games is extremely sluggish.  As soon as I plug in an external monitor, I can disable the UHD graphics card and it is fine.  

I would really like to be able to disable the UHD graphics card without having an external monitor.  In fact, it would be wonderful if I could just get rid of the UHD graphics all together, as it is completely useless.  This is the first gaming laptop I've had where I have both options and it has become a nightmare. 

Any suggestions?