[rob87]

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My Kodi settings
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• Settings - System - Display - Delay after change of refresh rate -> 1.0 seconds (also tried 4 seconds, makes no difference)
  
• Settings - System - Display - Whitelist:
  -> 3840x2160p 60.00Hz
  -> 3840x2160p 59.94Hz
  -> 3840x2160p 50.00Hz
  -> 3840x2160p 24.00Hz
  -> 3840x2160p 23.98Hz
  -> 1920x1080p 120.00Hz
  -> 1920x1080p 60.00Hz
  -> 1920x1080p 59.94Hz
  -> 1920x1080p 50.00Hz
  -> 1920x1080p 24.00Hz
  -> 1920x1080p 23.98Hz
  
• Settings - System - Display - Allow double refresh rates -> activated
  
• ...
  

Thanks for your great tutorial 

1. unfortunately the settings listed above are not present in any of the above Kodi images.
Where can I find them?
2. @sk83 last image kodiapp-arm64-v8a-timeout-15k.apk has only english language.
I have first kodiapp-arm64-v8a.apk then on the new upgadatet, then you can reinstall everything again.
3. should I now uninstall/deactivate the APP "Automatic Refresh Rate"?
4. which resolution should I set in Nvidia Shleld?
Is 4K 59,920 Hz Dolby Vision and HDR10 ok?

Thanks
Tenker

Try to change to expert level in the kodi settings. I guess you will find the missing ones then.

But to be honest i wouldn't just copy settings from other people.
For example i you want to use the ai upscaling all the time you cannot use this whitelist because 1080p content won't be upscaled in the shield. Instead the tv is doing the upscaling in this case.
I don't say this is a bad thing, it depends on if the shield or the tv is the better upscaler. But if the tv is the better upscaler i would also whitelist the lower resolutions, otherwise the shield will do the upscaling.
At lease this is how i understood how the upscaling works...

Because of the languages - you can always install another languages in the settings menu.

My shield is on 4k 59.97hz HDR10 mode(standard res) and this works with dolby vision as well in the emby app. I didn't try these Kodi DV builds yet but it shouldn't make any difference.

For refresh rate changes in kodi you don't need an extra app. Just set it at start/stop in the kodi settings.