Lagging/choppy backward playback

Thank you Jamie, I understand now. It's crazy that nvidia cards have such fundamental functionality missing.

The problem is that my system has integrated GPU disabled - it is not visible in neither in display manager, nor in System Information/Display/Components/Display. So I dont see how it can be used (or its driver updated) 

I'm reluctand to spend time enabling iGPU and testing it. This issue has already consumed too much of my time.

I will simply continue to use 23.0.0 (that is still working great even with iGPU disabled) until a critical functionality is released in the newest version, and then I will consider touching the BIOS and installing newest iGPU drivers.

So thank you for your help and explanation. I've learned a lot. AFAIC you may consider closing this report.

Here is a great article from Puget on performance with h264/hevc files https://www.pugetsystems.com/labs/articles/what-h-264-and-h-265-hardware-decoding-is-supported-in-premiere-pro-2120/

You are seeing choppy performance for hevc 422 10 bit media.  Since you have a 14900 cpu, I believe your igpu is uhd 770 which does have hw acceleration for this flavor of hevc.  

I'm wondering if the driver you have installed is more compatible with the older version of premiere and updating the driver will help you with the latest versions.

Jamie are you absolutely sure that 4080 Super GPU doesn not accelerate decoding of HEVC 422 10 bit?

After all you can't really get much more powerful and newer GPU (apart from 4090). And the canon 5R is 4-year old camera that I've been working without any problems for years.

Besides - how would you explain that Premiere Pro 23.0.0 is playing back that footage butter smooth both forward and reverse with system indicating GPU usage?

On the same machine Premiere Pro 23.1 and all other versions up to the beta - offer only choppy reverse playback.

On the page:

https://developer.nvidia.com/video-encode-and-decode-gpu-support-matrix-new

4080 super has YES for all possible codecs there.

I do not use integrated GPU(why would I). My nvidia driver is Studio Driver 561.09 

Have you tried diff between your source code branches  23.0.0 and 23.1?

Hi @Imgorthand - I see your file that you are working with is HEVC 422 10 bit.  You will not get hardware acceleration on your 4080 Super GPU with this format.  It sounds like you need to update your driver for your integrated GPU.  Here is a link that can point you in the right direction, https://helpx.adobe.com/x-productkb/multi/gpu-acceleration-and-hardware-encoding.html. Look at the section titled supported codec platforms, and recommended intel driver and processor versions for HEVC 422 10 bit decoding

I do use studio driver, i reported that its the same behaviour for 1/16 resolution, all closed windwods, etc

Take your time as I have switched to version 23.0.0 that works perfectly, regardless of how taxing the backward decoding is for the hardware.

OK, cool. I thought I'd ask since it seems like an odd OS version, @Imgorthand. 

After viewing your MediaInfo screenshot, I suspect it is media-related. When footage is 10-bit 4:2:2 and requires hardware decoding, it is pretty taxing for any computer system. You might try a clean installation of your GPU driver. Use the studio driver and not the game-ready one for the best results.

You can try other application optimization, like turning off HQ Playback in the Settings pop-up, lowering the Playback Resolution, and switching off unnecessary elements (scopes, overlays, etc.). Close any unnecessary apps, especially browsers, Spotify, and other GPU-robbing processes.

I hope the advice helps. If not, continue working with @jamieclarke on the issue. I hope we can help you with this shortly.

Thanks,

Kevin

> Is it possible to update Windows to see if that might help your problem?

Not sure why i have this version as it is a new PC with OEM Win11 Home. I'm reluctant to do any win version changes right now. If someone forced to to asses probablility of this fixing the problem I would guess 0.5% which is much lower than probability of contracting some random Window issues after update.

Check my ammended comment about your OS.

I should be able to provide sample clip in few days.

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