Devices > Video Cards, Monitors, Televisions, and Projectors
strange video stuttering problem
tij:
Well restarting to 60fps desktop broke frame pack 3D ... other stuff still works
except 60fps 4K stuff (Billy Lynn and Gemini Man) still does not work ... queues are not filling (all of them) ... stuttering like hell (both picture and sound) ... sound gets out of sync ... BUT can passthrough HDR to TV (which I could not do if start in 23fps desktop)
EDIT - SUMMARY of my testing of 2004 with NVidia:
1. 4k 60fps does not work (Billy Lynn and Gemini Man)
2. Booting to 60fps breaks 3D framepack playback
3. Best to boot to 23.976fps (to make 3D works) ... then change desktop to 60fps
VERDICT - if video is important to you, don't upgrade to 2004 yet (God knows what else might be broken lol)
TheShoe:
--- Quote from: tij on October 17, 2020, 01:31:44 pm ---do you have those weird 4k 60fps stuff (Billy Lynn or Gemini Man) ... does those stuff run OK on you 1080ti system?
--- End quote ---
i can play 4K60 but i have to drop down the scaling setting in madvr to do so. usually pulling way back on NGU settings to prevent dropped frames.
the difference there is that frames are actually droped whereas my little problem on the stuttering does not drop frames. so it makes me think this is all post media center/madvr processing and is more likely one of: Windows, the GPU itself, The TV firmware.
didn’t get time to test yesterday. will get to it this evening and see if i can narrow it down.
wer:
Ok. The tests I would try would be:
1. Connect to the other TV
2. Wipe the drivers and try the 445.75
3. If 445.75 doesn't work with the new tv, Try 445.75 with old tv, on the off chance it's a combination of factors
4. Put the 1080ti in the new PC, just to be sure.
I would think #2 is the most likely winner. But that combination of tests will tell you exactly where the problem is.
tij:
Still on v2004 build 19041.572 ... but up NVidia to 456.71
Restarted PC on 59fps ... hoping it will clear 4K 60fps stuff (those things are actually 59.94) ... no luck ... HDR passes through ... but whole thing flickers in and out of HDR ... queues still cannot fill
and it screw 23fps stuff ... flickers like hell (looks like TV jumping in and out of HDR mode)
EDIT: restarting PC on 60fps fix 23fps ... 4K 60fps same - cannot fill any queue (dejavu with MadVR 92.16)
EDIT2: enabling hardware decoding fixes 4K 60fps ... wonder if AntiVirus is slowing down software decoding
EDIT3: initially hardware decoding had some "presentation glitches" piling up (on both 4K, HD, 59, and 23 content) ... updated motherboard drivers and BIOS and "presentation glitches" problem went away ... but still cannot use software decoding on 2160p59 content - queues do not fill up
TheShoe:
Very busy but managed to get back to this.
1. Connect to the other TV
- done; no effect, either direct or through the Marantz processor which the working HTPC goes through. So that removes the TV firmware (same sets otherwise) and the Sony Soundbar/processor as potential culprits.
2. Wipe the drivers and try the 445.75
- unfortunately Guru3D links to an nVidia site in the UK and it returns 404 for any version of that driver. So out of luck. I did try the version released two weeks later but same issue.
3. If 445.75 doesn't work with the new tv, Try 445.75 with old tv, on the off chance it's a combination of factors
- see (2)
4. Put the 1080ti in the new PC, just to be sure.
- this one I still have to try. My guess is that this will resolve it. I think it's the 1650S card that is the issue, given what has been eliminated. will have to wait till the weekend
5. I want to try Windows 1909
- both HTPCs are on latest Windows 10 2004 (same patch level) so I think (5) is unlikely as an issue. Aware of the weirdness with 3D that tij reported; I'd do same if I were still using auto-detection but just using top/bottom now.
----
For now I'll just turn off auto-refresh switching and leave it at 60Hz which produces an artifact free image (to these eyes anyway).
Appreciate all the tips!
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