This is for the Plex app.
Player Version#: Both 1.40 and 1.50
Playing a 4K HEVC 10-bit file results in tons of stuttering/dropped frames when hardware acceleration is enabled. Disabling hardware acceleration makes the video play at normal speed. Can this be fixed? I’d rather not have to keep Plex in software-only mode.
It’s probably your Hardware that is the problem .
Possibly. This is a Late 2019 MBP running Catalina, so it has both QuickSync support through the CPU and a Radeon 5500M.
I’m having the same issue running on a 15inch 2017 MBP with Catalina. I’m currently running Plex client: Version 1.4.1.940-574c2fa7. I’m not transcoding and my 4K HEVC 10b files are playing via direct play for both video and audio codecs.
Responding with “it’s probably your hardware” is rather glib when both the OP and my processor can certainly handle decoding HEVC HDR content. I can play these files with VLC and hardware decoding with no issues.
I had the same issues, HEVC was stutterings insanely, was almost like i watched it in 5-10 fps.
I think i found out something, the PMP app you download from plex.tv’s website is not the real PMP somehow.
When i downloaded the correct release that you can find in the forums is like the old PMP player that you in fact installs, which you dont do with the other one.
After installing it my stuttering disappeared for all my HEVC materials.
Scroll down to the latest announcement and download the mac release, and see if its any better.
And my post.
Plex for Mac 1.6.5.1097
Plex Server on Ubuntu 1.18.9.2578
Under Plex for Mac -> Player
Uncheck the “Use Hardware Decoding” and the problem will go away.
However the CPU usage will spike to 300%.
If you check the “Use Hardware Decoding” then problem comes back.
Laptop
MacBook Pro Late 2019
Intel 2.6 GHz Core i7-9750H
AMD Radeon Pro 5300M
The same issue even for me.
With Hardware decode enabled tons of stuttering/dropped frames.
Without all perfect.
I’ve tried to playback the same files with Movist Pro no issue at all with Hardware Decode enabled.
So the issue is not related to the Mac
Plex for Mac 1.11.0.1215
Plex server on Synology NAS 1.19.4.2865
MacBook Pro 16 Late 2019
Intel 2.4 GHz Core i9
AMD Radeon Pro 5500M 8Giga
Very weird, in my case the whole UI of the app goes with 2-3s of delay, and it does some other weird things related.
Same stuff, disable hardware decoding and works perfectly, seems like it doesn’t like new Metal APIs from Catalina.
Plex for Mac 1.12.1.1253-c29aa096
Plex server on WD My Cloud EX4100
Macbook Pro 16 Late 2019
Intel 2.6GHz Core i7
AMD Radeon Pro 5300M 4GB
please some developers can take a look to that big bug?
Thanks
Where did you take that screenshot so I can verify by my self if it works or not for me too?
Thanks
With the Plex media player app on Mac (not plex) press ctrl shift D or command shift D I don’t remember exactly (can’t check now)
Let’s hope it will be fixed soon. I tried with VLC and it works perfectly
ah ok… No I’m using Plex for Mac because for me PMP is very sluggish.
I think that this thread is for Plex for Mac and not PMP.
So but no Dev seems to have taken a look at this issue…
Plex, please fix this issue. I have an Macbook 16" 2020 and an iMac and on both I am having this issue. Simply unchecking hardware acceleration fixes the problem.
If an issue is so easy to reproduce, a solution should not be that difficult
PLEASE DEV COULD YOU FIX THIS BUG?
MANY PEOPLE ARE COMPLAINING THAT ISSUE!!! since month
As of 21-Aug-2020 this is still an issue on my 2019-16" MBP with AMD 5500M
yes it’s a big issue of the app… the hardware is not a problem at all…
but the Dev ignores this post
absurd!!!
What the heck Plex? This thread was opened in Dec and you are continuing to ignore this issue. No comments, no support. I can understand it taking time to resolve issues but ignoring your customer base is NEVER excusable. Horrible customer service.
Having the same issue. What’s up with this, Plex?
I’m having the same issue here. Mac 10.15.6 with a Radeon Vii GPU. Acceleration works fine in every other app. In the Plex for Mac app the interface and playback are very choppy and unwatchable. Browser playback works fine.
