A:AnswerI did use it for a Roku streaming device and it works fine. However, there is no speakers so you have to figure out a way to output sound. I am 100% sure you can use it as a external monitor for any devices with HDMI output.
A:AnswerI would guess so, most if not all do, or so I thought. I didnt give it a second thought, when i purchased mine, just brought it, hooked it up, and wall-la. it worked.
A:AnswerWindows 10 has a built in blue light filter that works very well. You might try that first, then see if you still need a screen protector. This link has info on how to use the filter in Windows 10. https://support.microsoft.com/en-us/windows/set-your-display-for-night-time-in-windows-10-18fe903a-e0a1-8326-4c68-fd23d7aaf136
A:AnswerBuy a better quality HDMI cable, first one was cheap and still worked good, Had to buy another one since i purchase a different computer and the old cable wouldn't fit/work on the new computer. Both my cables worked on this monitor with no problem. Look up installation on You Tube, and see if they have a solution. I can only come up with you either hooked it up wrong, or a cheap HDMI cable....hope this helps.