Thank you very much bro!
I just wanted to thank Jeff V for all the info this posting provided. I have an onboard intel GPU and an Nvidia GeForce 1650 card. I’d been using both gpu’s configured to mirror as my PC is used mostly as an HTC but I keep a 2nd monitor in another room as well. After a software update today, I could no longer use the onboard GPU and Wayland was no longer running. Following the posts here I was able to get Wayland back again and the mirroring between the two GPUs is working once more.
Thanks for all the tips here.
When using wayland can you try creating folder and file
with the content
__NV_PRIME_RENDER_OFFLOAD=1 __GLX_VENDOR_LIBRARY_NAME=nvidia __VK_LAYER_NV_optimus=NVIDIA_only
you can remove VK if you dont support Vulkan