Custom Resolution Utility (CRU)
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04-11-2015, 04:56 PM
Post: #1311
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RE: Custom Resolution Utility (CRU)
(04-10-2015 08:52 PM)kaladar Wrote: I'd like to achieve 1080p120 (btw. 2160p60 are no problem) - I had "some" success using nVidia custom resolution, but I do have skipped frames (actually the half like it's 60Hz). I am not sure which side tricked me (nVidia as some "feature" to let me believe it sends 120Hz, while it has been just 60 - or the TV that said it run's at 120/121Hz but just displayed the half, anyway), yet I'd like to find out if the TV is capable of it.If the TV says it's running at 120/121 Hz and the UFO test shows 120 Hz, then it's definitely the TV skipping frames and not a driver issue. (04-10-2015 08:52 PM)kaladar Wrote: So what did I test till now you may ask: Using nVidia custom resolution - I did try all the available timings yet the ONLY working configuration was when I tried to set a custom res. out of 1080p60, just set 120 instead of 60Hz and test that. What makes me wonder if really 120Hz are being sent is that it actually uses timing out of 60Hz (when I check while "edit" the saved custom res.). Yet refresh-rates and pixel clock are at double of 60Hz. You can see my working settings for the nVidia custom resolution at the attached jpg file - while you can also see that I tried to set the same values via CRU - and that doesn't work ("No Signal").If the TV accepts 120 Hz with the NVIDIA control panel but not with CRU, then the TV might only accept 120 Hz as an HDMI signal. HDMI acts like single-link DVI if the extension block doesn't define HDMI support. Try adding an HDMI support data block in the custom extension block and see if the TV accepts 120 Hz that way. (04-10-2015 08:52 PM)kaladar Wrote: In the attached zip-File you can see that the "nVidia (fake?) 120Hz" are actually more like "60Hz" (as just every 2nd frame is displayed). And one weird thing: the TV displays it would be running at 121 Hz. For sure I did also try all the other automatic timings CRU provides - with out success ("No Signal").That's definitely the TV skipping frames. The timing parameters won't affect that. The TV doesn't support higher refresh rates properly. |
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