I am having issues with my laptop, Acer Spin 5 SP515-51gn-80as. I installed Windows 7 using Uefiseven. I’m using the modified Intel UHD version 21.20.16.4839 which specifically works for my UHD 620 DEV_5917. I also get x264 video decoding/acceleration working by HEX patching the 2 dll files. I also tried with the Biostar version and also 21.20.16.4860. With other versions of drivers (the 2 UHD 630) I get video, but no working x264 video decoding/acceleration even with HEX patched dll files. The problem is something fails sometimes and I get a blue screen, but my screen goes black instead and I cannot debug. I am sure BSOD is not showing up, because I simulated one and I get black screen. While using Standard VGA I get BSOD showing up when I simulate one. I suppose the video driver causes issues, which causes BSOD which doesn’t show up. Do you guys have any ideas what I could further try? Maybe some other driver version? Thanks.
I tried various drivers to no avail. But I think the BSOD comes because of the dedicated video card, as long as I have that disabled I get no issues. So the issue is from the NVIDIA dedicated video card driver or an issue within the switching process from the integrated to the dedicated video card. See here: [Win7] Graphics Driver Problems with iGPU+eGPU Systems - #6 by bloodhand