RE: CAC-1070 and 1170 HDMI 2.0 adapter feedback topic.

Hi DeathofChaos, thank you for your feedback. Before concluding that the adapter doesn’t do what it’s advertised to do, please bear in mind that the firmware in this (advanced) adapter needs to establish a handshake between a very wide variety of hardware. Our HDMI 2.0 adapters are the first to ship globally in volume. This is new technology, although it has been extensively tested and we wish it would work perfect in any configuration it doesn’t. But based on the feedback we get it does a great job for most customers, enabling functionality they did not have before.

At this moment many of the support questions we receive are concerning users who try to get 4K60 working on a Vizio TV. The recent firmware update for the adapter did resolve some of the Vizio issues so updating the firmware update is definitely worth a try. It’s also possible there may be other causes for the specific issue you’re having.

Can you provide us with more info about your setup? You use an R9 280X, it most likely has an mDP output. Do you use a CAC-1070 DP to HDMI 2.0 or CAC-1170 mDP to HDMI 2.0 adapter? If you use a CAC-1070, do you have another (mDP to DP) adapter in between? What type of HDMI cable are you using? Which AMD driver version are you using?

This is all relevant information which helps us with trouble shooting and finding a solution for you. Thanks!