Do you have any other idea of how to fix it?
If there is no way to fix it then for sure i will try the workaround
I've had an issue where I had to connect dummy or monitor to motherboard GPU. Solved it by installing latest Intel graphics driver (Z270 chipset)
Would be interesting to know the real reason behind this. I had identical rigs, the old ones updated to build 1709 was OK, build 1709 installed from scratch did not work.
I suppose the problem could have been fixed in the mining software if anyone knew what was causing it.