PC Graphics

[Hal900x]

I just added a custom resolution for my 21:9 monitor for the purposes of overclocking my monitor from 100->120Hz (supported by this monitor). I left it to the native 3440x1440, only changing the one frequency setting. My screen flashed as the driver tested and approved the custom res. The guide at https://www.amd.com/en/support/kb/faq/dh-032 states: "The newly created custom display mode(s) can be applied through Windows® Display settings or within the game/application graphics menu."

Actually, that doesn't seem to be true. No new resolution has appeared in either list. Which doesn't surprise me, since the actual resolution hasn't changed and there is neither the option to give a friendly name to the custom res nor is there an "apply" button. I hope I'm wrong but I have a sinking feeling that unless the new resolution differs in actual pixel count there is no way to actually apply it. Hopefully I'm jumping to conclusions. Thanks for an insights.

[goodplay]

Never used it myself for just changing refresh rate, i do that through Windows advanced display > Display adapter properties.

And what about the monitor instructions for oc refresh rate.

[Hal900x]

There are no instructions for custom resolutions, which makes sense since the monitor is just the passive receiver of what the GPU puts out. The specs do state it's normal refresh is 100, but can be OC'd to 120. However, using windows it flickers intermittently at both 100 and 120, so possibly there's a monitor issue. 

Still though, there is no information on the web that I can find on how to apply a custom resolution created in the AMD software, other than as I stated above, and as I said, the custom resolutions don't show up in either place that AMD says they should.

[elstaci]

Try using a small free program caller Custom Resolution Utility (CRU) and see if by using that your custom resolution shows up in Windows.