This leaves me with the thunderbolt 2 port, which reportedly can handle 4K 60 Hz. It cannot do so via its HDMI port, though, since it has a max of 4K 30 Hz. My laptop can function and output 4K 60Hz. Then try it through the receiver.īut, I would start with a short HDMI cable between the laptop and the projector and see what results you get.
If you are 6' from a projector using a good 4K/60 rated cable and it works, then move 30' away and it doesn't work, it indicates your 30' cable isn't properly supporting the resolution. This can indicate that your cabling in use isn't properly supporting the 4K/60 signal that is in place. Bypass all other equipment in the path, and see if you get a proper video signal at 4K/60. Likewise, across the board, you want to ensure that 4K/60 support is not only part of the specifications, but that it is enabled on all products throughout the lineup.įinally, plug your laptop DIRECTLY into the projector. So, you would need to check your laptop specifications. A very big thing in the industry is to advertise "4K SUPPORT!", but really they mean 4K/30 support, not 4K/60 support. USB-C to HDMI should be a direct conversion, still I have seen adapters which do not work.Ī potentially very big issue is whether or not your laptop actually supports 4K/60 resolution. It is possibly the adapter as you should just be using a Thunderbolt to HDMI adapter, you shouldn't be using multiple adapters if avoidable. Unfortunately, computer issues are almost always an issue with the computer in use. Some help here would be very much appreciated. What's happening here, is it a faulty active mini displayport adapter or something else entirely? And I don't understand why when I AM able to see the Optoma's screen it is reporting 30 Hz when I press the source button but says it's at 60 Hz. I don't understand why it's inconsistent and kind of hit or miss. The other issue is that sometimes when I connect everything the same exact way, the Optoma will report 2160p at 60 Hz but now the screen is either flickering colorful horizontal lines, a complete green screen, or a black screen with green horizontal bar across the top. But when I visit to measure the refresh rate, testufo reports 60 Hz? if that's true, why is the Optoma reporting 30 Hz? One discrepancy is that when I press the HDMI 1 source button on the Optoma's control, it reports 2160p at 30 Hz, not 60 Hz. I set the Optoma to its default resolution and to 60 Hz. I set the Optoma as the main display and the MBP and AVR as extended displays, each at their so-called default resolution. I connected an active mini displayport adaptor to my Thunderbolt 2 port, which allows me to run a second HDMI 2.0 cable to the Optoma. I ran an HDMI 2.0 cable from my MBP's HDMI port to the AVR. My video source is a mid 2015 15" Macbook Pro. I've run into issues setting up my Optoma UHD35.