Pawstar, which GPU do you have ? AFAIK the 4K limit for total accelerated screen area (sum of monitors in an RandR environment) is a hardware limit, not a driver issue.
There is some work being done (look up Ajax's "shatter" work) to separate out the screens so that each screen can use the entire hardware limit for itself, but I don't think that is available anywhere yet.
There is some work being done (look up Ajax's "shatter" work) to separate out the screens so that each screen can use the entire hardware limit for itself, but I don't think that is available anywhere yet.
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