Aha! Possible cheap solution coming up!
Try the Lenovo into a flat screen telly (as Gecks says, this assumes a VGA out on the lappy but I have never had one without and this HP i3 g6 is 6 yrs ish old and also has HDMI out)
I say "try" because there could be issues. TVs can be fine for general computer/web work but loose stuff off the screen edges on DAWs. The video card control panel MIGHT be able to fix this or a geometry control in the TV but try before you buy. I have a desktop driving a cheap 22" wide screen TV and Cubase jeeeust fits.
Yes, the ultimate resolution is poorer than a good monitor but I find easily good enough for audio, maybe not for your ultimate gamer?
In the same park as resolution is the fact that the TV is unlikely to handle all the scanning modes of the Lenovo. This matters not a jot for normal use but if you need to run certain diagnostics you would have to revert to the inbuilt screen. Or you can pickup monitors very cheaply from charity shops. I have had two form my local Heart Foundation, nothing super but allows me to run diogs.
In fact I am about to do this with this 15" HP. My eye is now so bad that I have to have email at 150% zoom and that causes a lot of very irritating scrolling.
Dave.