Custom Resolution Utility (CRU)

[hannes69]

Quote:It will give you the pixel clock and horizontal/vertical totals necessary to match a refresh rate. Keep in mind that calculated values might not match actual values because of hardware variance, so I don't know how close you can get.

Wow, that´s it what I was asking for...
In the meantime I played around manually with CRU. It cost me several hours to get accurate enough settings for 25 and 23.976fps movies (the ones I need mostly). Most of the time was spent for the reboots. I discovered now that you have implemented a restarter, if that works it will save a lot of time. Will test that.
It was a lot of trial and error because the resulting refresh rate of CRU doesn´t match the actual value, the deviation is maximum +/-0.003Hz.
For watching longer movies four decimal places of the refresh rate are necessary. Madvr renderer shows the clock deviation of the video and audio clock, eg. in my setup -72.7ppm. So for watching a 25fps movie I need 50*(1-72.7/1000000)= 49.996365 Hz. So if I take a setting in CRU with 49.996Hz I get something between 49.993 and 49.999Hz. I had the luck to get the right settings for 23.976 and 25fps movies.
So I can say that it is possible to get accurate enough settings for movie playback by using CRU, no need for Powerstrip,Reclock or madvr smoothmotion, so the perfect solution without "bending" audio or video.
I can now use the displayswitcher option of madvr and it works great!

Quote:There's also no way to have separate refresh rates for 23.976 Hz and 24 Hz with EDID overrides because both would be listed as 24 Hz. You'd have to use 48 Hz or 72 Hz if the projector can handle those, or you'd have to use a different resolution (make sure GPU scaling is disabled if you do that).

Yeah, I saw this kind of problem in a similar way: First of all I deleted all the given presets for my projector. Then I added 2 detailed resolutions with CRU for 23.976 and 25fps movie framerate (the movie framerate x2 as refresh rate because my projector only accepts refresh rates in the 30-60Hz region.). So I added 47.949Hz and 49.996Hz detailed resolutions. Now I have in Windows 3 selectable refresh rates though creating 2 by CRU. You can figure out what I get: 47, 48, 50 Hz.
So probably thereßs no way to implement 23.976 and 24.000Hz side by side. Not so bad because movies with 24.000 are rare comparing to the number of 23.976.


I hope CRU works with all current AMD GPUs, my next will probably be a R7 250 replacing my old HD4550.
Nice work you have done here ToastyX, thanks for the provided links, so it will be a much easier and faster workflow with my next GPU.
If CRU will work with my new GPU flawlessly, a donation is obligatory for me of course.
Many thanks,
Hannes