"Glitch" Issue with Source Video Files

Hello everyone,

hope you all are doing well! I just started using Davinci Resolve 18 and really like it so far! I nearly completed my first project now, but before I can do so there is one issue that needs to be resolved.

The issue is that some - not all - original shots I took are being displayed with a "glitch" error, as in the examples attached. Currently only clips shot in 60FPS are concerned, however only some and others do not have this issue. Do you know what is the reason for this and how can I solve it?

Some key info on my set up, please let me know if you need any other info:

- Latest version of Davinci Resolve
- PC Specs: CPU: 12th Gen Intel I5 12600K; RAM: 32GB ; I do not have a dedicated GPU at the moment
- Project Settings: Please see attached.

Note: If I ran the affected original videos with VLC or other players it works fine and the clip looks normal.

[Peter Chamberlain]

What are the exact details of the GPU and driver u r using?

I think it’s an overload of your iGPU. DR needs more resources than a simple video player.

What are the exact details of the GPU and driver u r using?

The exact details of the Intel® UHD Graphics 770 are listed below:

Processor Graphics
Processor Graphics ‡ Intel® UHD Graphics 770
Graphics Base Frequency 300 MHz
Graphics Max Dynamic Frequency 1.45 GHz
Graphics Output eDP 1.4b, DP 1.4a, HDMI 2.1
Execution Units 32
Max Resolution (HDMI)‡ 4096 x 2160 @ 60Hz
Max Resolution (DP)‡ 7680 x 4320 @ 60Hz
Max Resolution (eDP - Integrated Flat Panel)‡ 5120 x 3200 @ 120Hz
DirectX* Support 12
OpenGL* Support 4.5
OpenCL* Support 3.0
Multi-Format Codec Engines 2
Intel® Quick Sync Video Yes
Intel® Clear Video HD Technology Yes
# of Displays Supported ‡4
Device ID0x4680

Drivers are the most recent ones. For the iGPU it is: Intel® Graphics Driver 31.0.101.3802 with effective date November 18th 2022.

I do not have a dedicated GPU at the moment.

Your first course of action should be to change that.

[Peter Chamberlain]

I’d seriously consider adding a dedicated GPU

Ok, thanks, I figured as much but was rather surprised in the first place that overall it worked rather fine also with only the iGPU. Just ordered an RTX 3060 with 12GB VRAM, so should be covered for further projects

Hey everyone,

so I got my new RTX 3060 and installed it with latest drivers etc and also did all the neccessary changes in DaVinci. However, this issue still remains on the clips. I also tried doing a new project, but still these issues in the pictures persist. What else can I try to have my videos being displayed correctly?

What I noticed is that in my Windows explorer these "glitches" also appear in the preview icons, but when I open them in VLC or other programs it workes fine.

Appreciate your support on this!

Can you post one of those original clips on a cloud service?

Can you post one of those original clips on a cloud service?

I've uploaded it to Google Drive: https://drive.google.com/file/d/1Bz1d3d ... sp=sharing

Let me know if it shouldn't be accessible. Thanks!

your clip plays without any glitch on my old macpro in DR 18.1.1
I don't see any anomalies in the media info either

Your clip plays fine here. But it's HEVC in 10 bit, for which your machine has no dedicated hardware.
I'd either transcode into DNxHR or get a stronger machine (or try Apple silicon).

Your clip plays fine here. But it's HEVC in 10 bit, for which your machine has no dedicated hardware.
I'd either transcode into DNxHR or get a stronger machine (or try Apple silicon).

Which component(s) would I need to upgrade in order to have enough power to work with HEVC 10 bit?

And could the accelarated GPU decoding of the DR Studio version be helpful in this case or rather not?

You could upgrade to Studio. Since your Intel iGPU is 12th generation, it should decode that format. But I'd first try to transcode some footage to DNxHR with a tool like Shutter Encoder (free). If you can't play UHD in 60 fps then, you'll need a serious GPU.

You could upgrade to Studio. Since your Intel iGPU is 12th generation, it should decode that format. But I'd first try to transcode some footage to DNxHR with a tool like Shutter Encoder (free). If you can't play UHD in 60 fps then, you'll need a serious GPU.

So I used the Shutter Encoder to transcode some of the "problematic clips" and it workes fine now in DR. Thanks for the tip with the transcoding!

But just that we are on the same page. I bought an Nvidia RTX 3060 and still have these issues with the original files - but only with some of them. I filmed in 4k 24fps and 4k 60 fps with my Panasonic Lumix S5 and I have clips that do not have these issues. Before I bought the RTX 3060 the clips also worked fine during playback with only the iGPU. One question I'd have is how much impact the RTX will bring me if, in the future, I'll simply use the transcoder? I do not need the graphics card for anything else than Lightroom and Davinci Resolve.

It will run much better with that card. Check the files that don't show the issue with MediaInfo (also free). See if you can spot any differences in the 2nd tab.

If you are using the free version of Resolve that is most likely the problem as your clip is 10bit h265. It runs perfectly in Resolve Studio.