With sincere respect, JGB123321, if you neither know nor care what GPU scaling is, why are you even in this thread?
If someone asks for help on the official forum for that hardware, don’t turn up in threads that you have no interest of helping in, and start bitching when people post back in confusion at your non-answer. Not to mention that your further tirade has absolutely nothing to do with the original question and doesn’t help in the slightest, considering it’s a question about a now-missing driver option and not someone’s choice of hardware, although it seems like you posted that simply to toot your own horn.
Anyway, in regards to the actual thread topic: @painkiller17 I believe we’re now supposed to use XOrg options “IncludeImplicitMetaModes” and “Metamodes” to handle this instead, but I’ve yet to find a configuration that works (which is why I was searching and found this thread in the first place). The closest line I’ve found so-far which XOrg and the driver don’t complain about is…
Option “IncludeImplicitMetaModes” “DisplayDevice = DFP-3, Scaling=Aspect-Scaled, UseModePool = false”
… but unfortunately the monitor is still switching, so clearly it’s not being handled internally.