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[Discontinued][17-09-22] RatRefresh - refresh rate switcher, stops LCD tearing

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Justin:
Ok sounds good. I was referring to your comment about loading a 300mb file.  The single rom xml info file is a few kbytes at most :)

Baldbull:
Hello!

I've recently found this tool and have been fighting it thus far...  FYI - I have a Makvision CRT and Nvidia GPU.

Initially, I downloaded 0.14 and had zero success.

After reading through this thread a few more times and downloading the latest beta, I made some progress... but the tool only seems to work 10% of the time?  Can't figure out why.  Timing issue?

I made progress after downloading CRU and creating a custom "dummy" resolution.  I use RatRefresh command-line, get the USB connect.. then USB disconnect sound.

The new refresh rate shows in Windows/Display and if I change it there, will always work... but like I said, the RatRefresh tool will only set this new refresh rate about 10% of the time.

Maybe I can find a tool like QRes that can support non-integer refresh rates and do a multi-step method?

Any ideas?

Rataplan626:
There is still issues with AMD and NVidia gpu's because of how their drivers work. I'm working on a version that works with AMD, NVidia would be next. The issue is indeed that the new refreshrate IS registered, but not automatically selected. And I'll need to talk to the API for that. At least with AMD.
When you ran RatRefresh, does Windows show two 60Hz refreshrates in the display settings?

Baldbull:

--- Quote from: Rataplan626 on June 05, 2023, 03:18:38 am ---There is still issues with AMD and NVidia gpu's because of how their drivers work. I'm working on a version that works with AMD, NVidia would be next. The issue is indeed that the new refreshrate IS registered, but not automatically selected. And I'll need to talk to the API for that. At least with AMD.
When you ran RatRefresh, does Windows show two 60Hz refreshrates in the display settings?

--- End quote ---

No. Only 1.

I've identified a utility called nircmd which has a setdisplay option.  This successfully changes resolution, but only supports an integer value for refresh rate.  I also found another utility called SetResolution, with the same issue, though either should probably work for anything that does not round to 60.

Passing the appropriate refresh rate onto these utilities seems to be a viable, although clunky option.

Rataplan626:
It's been a long while, but live struck me. I don't have any AMD or nVidia stuff anymore, so I can't troubleshoot or develop this any further. It seems to work fine for Intel iGPU, and I still use it on my cabs to great extent. I've had question from people using VRR and FreeSync with RatRefresh, but I don't have any of that fancy stuff so I don't know. I don't know if Mame has a implementation for such monitors to run at the correct rate, if not I still think RatRefresh might be beneficial as Mame can then sync to the set refresh rate.

Anyway, I think it's fair to conclude this tool is discontinued now. If there's any specifics I can help with, feel free to ask. AMD nVidia support is unlikely to ever get in because of lack of time and equipment.

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