CRU / Dell P2720D / pixel clock / add monitor data

[ToastyX]

(03-24-2020 02:25 PM)sempronius Wrote:  Now what I would like to know:
In this scenario (kind of: "1920x1080" inside "2560x1440"), what pixel clock do I have: the one of the 2560x1440 desktop resolution - or in fact the lower pixel clock of a 1920x1080 resolution?

With display scaling, it uses the resolution that you specify. With GPU scaling, lower resolutions are scaled up to the native resolution, so only the refresh rates available at the native resolution will be available.

(03-24-2020 02:25 PM)sempronius Wrote:  By the way, a less important question:
Why can't my monitor (Dell P2720D) do "display scaling", only "GPU scaling" works, whilst another monitor (HP 27xq) can do both?

Display scaling won't be available if the EDID doesn't define any lower resolutions.