Razer Core X + Mac + h.265 video + RX VEGA 56 + noise | Razer Insider
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Razer Core X + Mac + h.265 video + RX VEGA 56 + noise

  • January 8, 2019
  • 4 replies
  • 19 views
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This question has many parts so I'm mostly asking because I think there are chances of finding other users with similar experiences here. It's probably more of a Mac OS drivers/AMD question but here goes: When I play h.264 video at 4K the Vega 56 hums along at regular noise levels. When it's h.265 the fans on the card spin up to high speed/noise.
  • 2018 Mac Mini (32GB RAM, 6-core i7 model) with Mac OS Mojave
  • Razer Core X
  • MSI AMD Vega 56 Air Boost
  • VLC 3.0.3
I realise h.265 is more GPU intensive than h.264 but the difference is like night and day! Has anyone else got this issue?
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4 Replies

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... I might add that playing 4K h.265 10-bit HDR using the Mac Mini's integrrated graphics works fine, and the machine is pretty silent.
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  • chondo
  • January 8, 2019
What player are you using and does it spin up immediately or does it take a bit? I'm downloading some h265 and will try it on my setup...
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I think I discovered the culprit. I am using VLC as player, since it has the best HDR tone mapping (normally I use Plex but their HDR tone mapping is just wrong). In order for tone mapping to work, the VLC video output module must be set to OpenGL, but I realised there are two OpenGL versions. I simply switched from "Mac OS X Open GL Ouput" to "Core Animation Open GL Layer (Mac OS X)" in the VLC advanced options. This results in far lower GPU load.
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  • chondo
  • January 8, 2019
Okay, I downloaded a h265 video and played it with and without the Razer X. I have this Razer X plus Vega 64 eGPU setup, not exactly what you have but close. I also played in in VLC and had made that change after coming across this thread on The VideoLAN Forums. Glad that it is working for you now...
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