https://bugs.freedesktop.org/show_bug.cgi?id=93826
--- Comment #48 from Jonas jojonintendo@tutanota.com --- I have an Asus MG278Q, which is the TN model, and the issue is not the same as explained in the thread you have linked. Under Archlinux what happens above 60Hz is a crazy flickering of almost all screen, which can be triggered by having many windows open, or simply a terminal compiling a kernel (which refreshes very fast). Under Windows I don't have this problem at all, in fact in linux it is possible to workaround it by setting a "high" power mode, but it is not very convenient because of temperatures and power draw.