Hello to all of you.
I have a Z590 VISION D build working nicely, but the DP/HDMI audio coming from my dGPU is working terrible. I'm experiencing a crackling issues when I'm listening to music through the dGPU HDMI or DP (YouTube, VLC, etc.), audio through the onboard ALC4080 is working perfectly. My build is: Z590 VISION D (F7 BIOS), i7-11700K, Gigabyte Radeon RX580 Gaming 4GB with stock BIOS. I have working AppleVTD incl. enabled VT-d. I'm experiencing this issue on macOS Big Sur, Monterey and Ubuntu 20.04, 21.04, 22.10. On Windows 11 everything is working fine, no issues. I'm start to thinking it's a hardware problem or a BIOS setting. A strange effect: when I put load to the GPU the crackling goes away - no more crackling (both, macOS and Ubuntu). I have tried the GPU on my old build Gigabyte Z270X Gaming 5 with i7-7700K, but no crackling issues. Everything works perfectly.
What I have tried so far:
- CPU PCIe settings: PCIe Gen 1, 2, 3, 4, Auto - nothing changed
- PCH CPIe settings: PCIe Get 1, 2, 3, Auto - nothing changed
- VT-d: Enabled, Disabled - nothing changed
- XMP memory profile: Enabled, Disabled - nothing changed
- CPU C States: Disabled, Enabled - nothing changed
HDMI/DP audio crackling goes away, when:
- I put load to the GPU
Thanks, any help is appreciated.