Open Terminal and run this command:
Code:
sudo nvram "recovery-boot-mode=unused" && sudo reboot recovery
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MP 1,1-5,1 Activate AMD hardware acceleration
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How to uninstall this plug-in ? I don't know why my FCPX have problem when I video edit or export video. The system haven't response , need hard reset . 
Clear NVRAM 3 times consecutively.How to uninstall this plug-in ? I don't know why my FCPX have problem when I video edit or export video. The system haven't response , need hard reset .
How to uninstall this plug-in ? I don't know why my FCPX have problem when I video edit or export video. The system haven't response , need hard reset .
Did you check the console log after reboot?
This happened to me. Patience. I got distracted on another system and looked over and it had booted into recovery. Perhaps several minutes.
Which GPU? Which software? Any crash log? Reproducible?
Can you check the console log, and see if any KP recorded during system freeze? Or any GPU related error logged?
Any supported GPU? Or just a non-nVIDIA GPU?
So is there no way in Mojave to have one GPU hooked up to a tiny (under 10") monitor for boot screen capability and a 2nd GPU for normal (i.e. hardware accelerated) use??
Mojave don't work with mix-matched NVIDIA + AMD GPUs and don't work with a GTX 780 + 120GT at the same time, all sort of troubles.Any supported GPU? Or just a non-nVIDIA GPU?
So is there no way in Mojave to have one GPU hooked up to a tiny (under 10") monitor for boot screen capability and a 2nd GPU for normal (i.e. hardware accelerated) use??
Titan is NVIDIA.
The kext and this entire thread is for AMD acceleration. It is not expected to (and won’t ever) work for any NVIDIA card.
What has never worked in Mojave? The hardware acceleration? I doubt it has ever worked in the previous versions.
RX-580 on 10.14.6 (OEM version reported as RX-480):
No HEVC encode/decode:
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with the patch. Without it, there is no hardware acceleration
I’d wonder if this was a thermal issue or if the power draw was too great on the mini 6 pin power. Then again without more details we may never know.
I can confirm that hardware acceleration is working well here on my 5,1 with a MSI RX570. I noticed that changing the desktop background picture causes my system to freeze completely. I tried turning off the patch and then it works as expected again. No big deal, but I thought I'd report. Here's the log:
May 20 10:23:57 HN-Mac-Pro com.apple.xpc.launchd[1] (com.apple.preference.desktopscreeneffect.desktop.remoteservice[852]): Service did not exit 5 seconds after SIGTERM. Sending SIGKILL.
May 20 10:23:59 HN-Mac-Pro com.apple.xpc.launchd[1] (com.apple.DumpGPURestart): Service only ran for 1 seconds. Pushing respawn out by 9 seconds.
May 20 10:24:06 HN-Mac-Pro com.apple.xpc.launchd[1] (com.apple.photos.VideoConversionService[862]): Service did not exit 5 seconds after SIGTERM. Sending SIGKILL.
May 20 10:24:09 HN-Mac-Pro com.apple.xpc.launchd[1] (com.apple.DumpGPURestart): Service only ran for 1 seconds. Pushing respawn out by 9 seconds.
May 20 10:24:09 HN-Mac-Pro com.apple.xpc.launchd[1] (com.apple.photos.VideoConversionService[862]): Service did not exit 3 seconds after SIGKILL.
May 20 10:24:09 HN-Mac-Pro com.apple.xpc.launchd[1] (com.apple.photos.VideoConversionService[862]): Abandoning service instance. This may lead to deadlocks.
May 20 10:24:18 HN-Mac-Pro com.apple.xpc.launchd[1] (com.apple.imfoundation.IMRemoteURLConnectionAgent): Unknown key for integer: _DirtyJetsamMemoryLimit
May 20 10:24:19 HN-Mac-Pro com.apple.xpc.launchd[1] (com.apple.DumpGPURestart): Service only ran for 1 seconds. Pushing respawn out by 9 seconds.
May 20 10:23:57 HN-Mac-Pro com.apple.xpc.launchd[1] (com.apple.preference.desktopscreeneffect.desktop.remoteservice[852]): Service did not exit 5 seconds after SIGTERM. Sending SIGKILL.
May 20 10:23:59 HN-Mac-Pro com.apple.xpc.launchd[1] (com.apple.DumpGPURestart): Service only ran for 1 seconds. Pushing respawn out by 9 seconds.
May 20 10:24:06 HN-Mac-Pro com.apple.xpc.launchd[1] (com.apple.photos.VideoConversionService[862]): Service did not exit 5 seconds after SIGTERM. Sending SIGKILL.
May 20 10:24:09 HN-Mac-Pro com.apple.xpc.launchd[1] (com.apple.DumpGPURestart): Service only ran for 1 seconds. Pushing respawn out by 9 seconds.
May 20 10:24:09 HN-Mac-Pro com.apple.xpc.launchd[1] (com.apple.photos.VideoConversionService[862]): Service did not exit 3 seconds after SIGKILL.
May 20 10:24:09 HN-Mac-Pro com.apple.xpc.launchd[1] (com.apple.photos.VideoConversionService[862]): Abandoning service instance. This may lead to deadlocks.
May 20 10:24:18 HN-Mac-Pro com.apple.xpc.launchd[1] (com.apple.imfoundation.IMRemoteURLConnectionAgent): Unknown key for integer: _DirtyJetsamMemoryLimit
May 20 10:24:19 HN-Mac-Pro com.apple.xpc.launchd[1] (com.apple.DumpGPURestart): Service only ran for 1 seconds. Pushing respawn out by 9 seconds.
I tried this JellyFish video and both my GPU Nitro+ RX570 8GB and CPU handles it with ease.
Wonder why your 580 use 100% GPU while mine (570) is only around 25-40%:
I'm using VLC 3.0.6 64bit:
I couldn't open the video with QuickTime though:
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Thanks for the info. After some quick test. VLC 3.0.6 and play that video in window mode, will able to play that video smoothly with much lower GPU usage.
The bigger the window (even just black bar on both sides) will increase the GPU usage.
IINA has trouble of CPU performance. For some reason, even use hardware decode. There is still a thread that require quite a bit CPU power, and that thread can become single core performance limiting in this particular case, which eventually causing the shuttering.