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Video playback issue on High Sierra

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David593:
Just looked back at this topic after a break as no response had been received for so long. I have sent Bob a pm with the support reference and contact (thanks Bob). I can confirm that I have had no response from Apple and will contact them later today. I will post any update, though I guess from others with similar issues there is no fix as yet.

Awesome Donkey:
Well, I wouldn't hold my breath on Apple giving any assistance, especially if the issue is only happening for Nvidia GPUs. They don't officially support Nvidia graphics cards (except some older Nvidia GPUs that were in some older Mac products) and Nvidia actually releases their own drivers for Mac, which has had MANY issues with High Sierra. Rumor is Apple had a falling out with Nvidia several years back, hence one of the reasons why they only support AMD cards now.

You might try contacting Nvidia instead, though I doubt it'd do much good. Rumor was Nvidia was looking to drop support for their Mac drivers with the Pascal series of cards, but a very vocal group of individuals (Hackintoshers) were able to change their mind they released their Mac Web Drivers for Pascal cards.

Personally, if it wasn't for the darn cryptocurrency mining craze and the RAM shortage, I'd of replaced my Nvidia GTX 970 with a AMD 580 by now, since I do use a Hackintosh partition on this PC. That and I'd actually like to use Wayland sessions under Linux without the terrible performance issues with the Nvidia proprietary drivers.

David593:
Hi everyone

My NVIDIA card is in a high end MacBook Pro from late 2013. Being an official Apple product I don’t believe I can update drivers directly but it is supported by Apple.

I have spoken to Apple support who suggested that they have no other programmes affected with this issue they are aware of. They would very much welcome the JRiver developers contacting them so they can obtain more logs and details of jrivers interaction with the file system etc to track down the issue. They confirmed they would take you seriously and that there is a developer channel to feedback issues. I have even obtained the phone number for this and will pm it to Bob.

Now please can JRiver contact Apple directly to sort this out as they said directly that they would help?

I sense you can feel my frustration but whoever is to blame it isn’t me, I just want to be able to use the programme on the computer, preferably upgraded. As I have said before this is a genuine Apple pc that cost over £2.5k and works perfectly in every other respect. I paid for the software and the hardware and just want them to play together. Apple have said they WILL talk to you JRiver. Let me know if they don’t and I will contact them again.

JimH:
I sympathize, but from your description, and from the response at Apple, this sure looks like a video driver problem, and this is not something we can fix.  Nor is Apple likely to fix it.  We'll talk to them, but your only hope is that a future driver fixes the problem.

David593:
Thanks Jim.

They wondered if it may be something to do with the changes made to the file system. Thanks for agreeing to talk with them, that’s all I wanted and all you can do. Fingers crossed.....

The 15” Microsoft surface book looks good.....  :D

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