Custom Resolution Utility (CRU)

[ToastyX]

(12-26-2024 05:18 PM)ditchmagnet Wrote:  Hi, first post here. I've used CRU in the past to get some more out of some laptop monitors I've had. I'm trying now on a desktop screen (HyperX Armada 25). Default clock is 240hz and I'm unable to even go 1 hz above that. The screen displays a message that the input signal is out of range. I'm wondering if this is something that the firmware is blocking since I find that hard to believe, so maybe there is nothing I can do, but hoping there might be something I can try?

It's common for firmware to block higher refresh rates, especially if the monitor already supports high refresh rates. Laptop screens are different because they normally don't have scalers, so there is often nothing blocking higher refresh rates from being sent to the panel, but the panel controller can't always handle higher refresh rates, and you're still limited by the bandwidth of the interface.