Hdmi audio inserter causes a kernel panic
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Hdmi audio inserter causes a kernel panic  


Jesper van den Ende
New Member
Joined: 1 year ago

Hi everyone,

My eGPU is running just fine on both MacOS and Windows using Bootcamp when I connect my tv to the gpu via hdmi. However, I recently bought a hdmi audio inserter to insert the SPDIF signal from my external sound card into the hdmi signal. The moment I connect the inserter to the gpu via hdmi, I get a kernel panic on MacOS. On windows everything works just fine, even with the audio inserter connected.

This is the audio inserter I'm using: https://www.techly.com/hdmi-4k2k-audio-inserter.html
It's not from that exact brand but there seem to be several different brands selling the same device online.

Here's the kernel panic:

Backtrace (CPU 0), Frame : Return Address
0xffffff81eb78b740 : 0xffffff800a9ae6ed 
0xffffff81eb78b790 : 0xffffff800aaea185 
0xffffff81eb78b7d0 : 0xffffff800aadb8ba 
0xffffff81eb78b840 : 0xffffff800a95bb40 
0xffffff81eb78b860 : 0xffffff800a9ae107 
0xffffff81eb78b980 : 0xffffff800a9adf53 
0xffffff81eb78b9f0 : 0xffffff800aadbadd 
0xffffff81eb78bb60 : 0xffffff800a95bb40 
0xffffff81eb78bb80 : 0xffffff7f8c0cc5b0 
0xffffff81eb78bd50 : 0xffffff7f8c0cc350 
0xffffff81eb78bda0 : 0xffffff7f8c0d14fd 
0xffffff81eb78bdc0 : 0xffffff7f8c0d1b03 
0xffffff81eb78bdf0 : 0xffffff7f8c0cff97 
0xffffff81eb78be20 : 0xffffff800b05f387 
0xffffff81eb78be90 : 0xffffff800b05f2a9 
0xffffff81eb78bec0 : 0xffffff800a9ed885 
0xffffff81eb78bf40 : 0xffffff800a9ed425 
0xffffff81eb78bfa0 : 0xffffff800a95b0ce 
      Kernel Extensions in backtrace:
            dependency: com.apple.iokit.IOACPIFamily(1.4)[3E8E9870-2E41-33F6-ACBF-35DDC08F22B5]@0xffffff7f8baf3000
            dependency: com.apple.iokit.IOPCIFamily(2.9)[BFDEB8D4-50FE-3DDB-87B7-F6A504393830]@0xffffff7f8b3d1000
            dependency: com.apple.iokit.IOGraphicsFamily(530.66)[373EAB85-2C5F-3B84-B86D-421F79C47DF2]@0xffffff7f8bc9e000
            dependency: com.apple.AppleGraphicsDeviceControl(3.50.12)[5334847D-B612-3E8C-88A3-C2A5853675CD]@0xffffff7f8bfe5000

BSD process name corresponding to current thread: kernel_task

Now I don't think the drivers are the only problem here, because I connected the inserter via a regular hdmi - usb c / thunderbolt adapter and the display was rather glitchy. But everything is fine on bootcamp so I'm thinking there might be a solution somewhere.

Has anyone experienced any similar problems? Not necessarily with an audio inserter like this, but perhaps some other hdmi enabled device?

My current setup:
MacBook Pro (15-inch, 2016)
Razer Core X
ASUS ROG STRIX Radeon RX Vega 56 8GB

MacBook Pro (15-inch, 2016)
Razer Core X
ASUS ROG STRIX Radeon RX Vega 56 8GB