Some of the Intel built-in graphics adapters are not supported by Lightroom. I'm using an older HP desktop computer that has one of the Intel graphics adapters, no graphics card. It has been disabled. Consequently, I cannot use the slideshow in Lightroom Classic CC. I have to create a PDF slideshow, and that works just fine. But that's the only thing that doesn't work in Lightroom. In Photoshop there are a couple of the filters that I'm not able to use. I could add a supported graphics card, but at this point I don't believe it would be worth it. I don't know enough about your computer to know if there is a graphics adapter available that would solve the problem. The main benefit of having a supported graphics adapter is for those who have high resolution monitors.