Custom Resolution Utility (CRU)

[ToastyX]

(02-27-2022 05:26 PM)rainbow99 Wrote:  hi all, i have a DP KVM 2x1 pro and a 144hz DP monitor and ASUS Mini PC PN51 running amd 5500u. If i use direct DP connection, the monitor works well. But if I connect through the KVM, the monitor flickers forever. I've tried to use CRU and lower the settings to 100 or 120, but can't get it to work with the KVM as well. Any advice on the settings that I should look out for? Thanks.

That's usually a signal quality problem. I don't know if a better cable might help or if there's some issue with the KVM. DisplayPort runs at fixed bit rates, so the refresh rate would need to be low enough to shift to a lower bit rate. If 144 Hz uses HBR3, going below 357 MHz pixel clock would shift down to HBR2. Keep in mind the color depth as well because 10 bpc would use more bandwidth than 8 bpc.