Vegas pro 20 build 214 Preview lags and Rendering video is slow

wedge wrote on 12/3/2022, 6:39 AM

I updated vegas yesterday on an new update pc and I don't think it's working normal.

The video preview in Vegas Pro 20 lags to about 8 fps on windows 10 with an intel 13900kf, RTX 2080ti and m.2 gen4 ssd. Also, the render time seems slow.

Changing legacy options has almost no effect. Changing preview options has no effect. Vegas 12 is the latest version that has a preview window of at least 60fps. I'm trying to edit an OBS 4k 60fps AVC video. This same project displays smoothly on a 2015 and 2020 pc.

I have an older computer that vegas works fine on with the peview at Best Full (intel 5960x w/ a GTX 1080, 4x4gb ram,) .

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Former user wrote on 12/9/2022, 7:43 PM

@RogerS Try this file with your intel IGPU decoder. You see the stuck GPU decoder phenomenon. Do a heap of fades to try and trigger it, does that cause the lag for you, and how long does the decoder stay stuck, if at all

https://www.dropbox.com/s/nbw2aor6u9mq7p2/How%20to%20RESET%20Vegas%20Pro%20to%20default%20settings_H.264.mp4?dl=0

RogerS wrote on 12/9/2022, 11:20 PM

Yes I think it does, after the fade it drops down to as low as 2fps for a few seconds until it recovers to full speed. You can see a very high decoder activity spike when that happens.