Originally Posted by fluffysheap
If the monitor's refresh rate isn't a multiple of the video framerate then the video player will alternately drop and insert frames to keep in sync, or else it will tear the video (just like gaming with vsync off). Probably it will drop/insert frames but it depends on the software.
Regardless of what the monitor reports to the OS, the panel spec goes up to 75Hz. If you really care about this, the thing to do is probably to set it to 72Hz before watching a 24FPS movie. This should give you high-quality color and brightness without any worry about framerate mismatch. Or, if you don't notice this particular artifact, then just don't worry about it.
I'm looking into making a Lightboost-style backlight mod for this monitor, but I'd like to request some help with research to see what results people are getting with overclocks. Essentially, for this to work, it's important that the panel be able to handle a very long blanking interval, and to do it without getting super dim. This mod would yield something in the 85-96Hz range but with 120Hz pixel clock. The extra clock would be used for a large blanking interval, during which the backlight would illuminate. This would make motion much less blurry, although it still wouldn't be as good as the TN Lightboost monitors, due to the panel simply being slower. There would be a three-way tradeoff between flicker, blur, and refresh rate.
Here's what I would like, if possible:
1) Fire up Toasty CRU or whatever you use for custom timings.
2) Set to 90Hz
. Keep the 1440 vertical resolution, but slowly increase the total vertical rows. Depending on your tool, this is either the "back porch," "blanking interval," or the "total lines" or "total rows."
3) Increase the vertical rows or back porch by 75-100 at a time. If you're setting total lines, increase up until about 1900-1950 total lines. If you're setting the blanking interval or back porch, you want about 500. Either of these are roughly the same pixel clock as normal blanking @120Hz.
4) Report if the monitor freaks out, if you get the same brightness/color shift that normally happens in the 120Hz range or if the color quality stayed good, how high of a vertical row setting you reached, what your top normal overclock is, and whether you have a QNIX or X-Star monitor.
5) If your monitor freaks out, it's unlikely it will be damaged, but you might need to reboot to safe mode or have a second connected monitor to reset your settings.
Anyone who is willing to do this test, please feel free to just send me the results in a PM, unless your results are really interesting! No need to clutter up the thread.