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Fine red horizontal lines through media

PostPosted: Fri Feb 05, 2021 5:34 pm
by AlexWalker47
I'm testing out the latest beta and I'm seeing fine red lines through all of my media. RED, prores, doesn't matter. MacOS 11.2. Exports from this footage have odd strobing in some of the tones.

Screen Shot 2021-02-05 at 11.32.02 AM.jpg
Screen Shot 2021-02-05 at 11.32.02 AM.jpg (289.67 KiB) Viewed 875 times

Re: Fine red horizontal lines through media

PostPosted: Fri Feb 05, 2021 5:37 pm
by Jim Simon
Do the exports also show the lines?

Re: Fine red horizontal lines through media

PostPosted: Fri Feb 05, 2021 6:55 pm
by AlexWalker47
Yes, as I mentioned the exports also show strange strobing in certain warmer tones. Currently seeing these issues with ACES and DaVinci color managed workflows. Non color managed has no issues.

Re: Fine red horizontal lines through media

PostPosted: Sat Feb 06, 2021 6:17 pm
by Jim Simon
Alright.

I haven't seen anything similar with my own ProRes ACES projects in any version of Resolve for Windows.

Possibly it's a mac bug.

Re: Fine red horizontal lines through media

PostPosted: Sun Feb 07, 2021 2:58 am
by Uli Plank
If this is a 'trash can' MacPro, it might be a faulty GPU.

Re: Fine red horizontal lines through media

PostPosted: Tue Feb 23, 2021 7:30 pm
by AlexWalker47
Not a GPU issue as I just downgraded to 16 and catalina without issue. Probably an issue with eGPUs under Big Sur/DR17 as I have a Sonnet eGPU enabled via purgewrangler

Re: Fine red horizontal lines through media

PostPosted: Wed May 19, 2021 9:34 pm
by AlexWalker47
Fyi, I eventually figured out it was Resolve's noise removal that was causing these lines. Delete that node, no more lines.