Custom Resolution Utility (CRU)

[ToastyX]

(03-21-2019 04:18 AM)Twone Wrote:  Yes, I mean 10 meters. I have the same problems with a shorter cable like 1 meter one, my GPU loses the signal to the TV for a couple of seconds whenever I power it off or on which makes my main monitor blink and flicker until the signal gets stable. It's fairly problematic as when SCDC feature is enabled the resolution gets reset to 4k whenever my GPU is trying to get the signal to the TV again, and with the 10m cable it takes a long while, which can make my main monitor flicker for up to a 1 minute. It does this with shorter cables too, even with a 1.4 cable which I've tried, it just finds the signal quicker. However if I disable SCDC present or delete the HDMI 2.0 block and switch to 1920x1080 which I mostly use anyways the signal doesn't get dropped nor the resoluton gets changed, even when I power off the TV so my main monitor doesn't blink or flicker, which is how I want it to be. I was just wondering what causes this behavior, I can't say it's the cable as I've tried multiple. AMD driver issues perhaps?

It sounds more like a handshake problem. It's possible SCDC is not present when the TV is turned off, so the video card has to renegotiate the connection. SCDC and HDMI 2.0 are required to support HDMI 2.0 speeds. 1920x1080 doesn't require HDMI 2.0. Does anything change if you disable HDCP support for the TV in Radeon Settings?