I am having a similar issue that another user has posted a few days ago about.
I have a dual monitor set up with an Intel NUC8i7HVK on Windows 10. All drivers are downloaded and updated from the Intel site.
One of the 2 monitors does not wake up from sleep or a reboot. None of the monitor's power or other physical buttons work, but when unplugged from power and restarted it connects well.
Using different thunderbolt port, HDMI ports, uninstalling and reinstalling both - the Intel HD and the Radeon Rx drivers. This continues to be an issue.
Thank you for your help,
Although I do not have yet experienced this issue myself since I use it as HTPC and do not use Sleep, have you tried using BIOS recovery to update the BIOS
instead of using the UEFI or F7?
Also just wondering, is your Windows 10 the latest July build? It appeared the latest cumulative build fixes the sleep
issue according to some users. if not, I guess it is worth a shot trying.
You can check your build by typing "winver" command in Run to compare with Microsoft's build info using this link
https://www.microsoft.com/en-us/itpro/windows-10/release-information Windows 10 release information
You can find the offline installer for the updates using Microsoft's update catalog link here in case your Windows Update doesn't update.
https://www.catalog.update.microsoft.com/Search.aspx?q=cumulative%20update%201803 Microsoft Update Catalog
Hope they work for you.
We just wanted to double check if you still need further assistance.
As well we would like to know if you were able to follow xpandabl3's advise.
Please do not hesitate on contacting us back.
I tried plugging my monitor into a different computer (Mac) and this issue persists. I am now under assumption now that this issue is related to the monitor itself. Correct me if I am wrong.
No, you're not wrong. I have a monitor (well, a 24" Seiko TV) that won't wake up via its VGA interface. Oddly enough, it wakes up fine via its HDMI interface (usually it's the other way around).