ROG Ally: HDMI audio cuts out frequently when docked (Bounty $60 USD)

CPU: 3900x / GPU: 6800xt. I’m experiencing HDMI audio cuts and dropouts for a while now. Happens on Chimera and Bazzite too last time I’ve tried. My workaround was to use the motherboard onboard sound or an external sound card. Today decided to give HDMI audio a shot (is far more convenient than the workarounds). Came across a post about power_dpm_force_performance_level saying that if you set it to high then the issue doesn’t happen. Gave it a shot and it worked! Maybe the gpu audio chip starves at the lowest profile, who knows. I would like this to be set permanently on my Chimera setup, as of now each reboot reverts the changes. Is there a way to set the high profile permanently?

echo high | sudo tee /sys/class/drm/card0/device/power_dpm_force_performance_level

CPU: 3900x / GPU: 6800xt. I’m experiencing HDMI audio cuts and dropouts for a while now. Happens on Chimera and Bazzite too last time I’ve tried. My workaround was to use the motherboard onboard sound or an external sound card. Today decided to give HDMI audio a shot (is far more convenient than the workarounds). Came across a post about power_dpm_force_performance_level saying that if you set it to high then the issue doesn’t happen. Gave it a shot and it worked! Maybe the gpu audio chip starves at the lowest profile, who knows. I would like this to be set permanently on my Chimera setup, as of now each reboot reverts the changes. Is there a way to set the high profile permanently?

echo high | sudo tee /sys/class/drm/card0/device/power_dpm_force_performance_level

pw-dump | jq '.[] | select(.type=="PipeWire:Interface:Node") | {id: .id, "node.name": .info.props."node.name", "node.description": .info.props."node.description", "priority.driver": .info.props."priority.driver", "priority.session": .info.props."priority.session", "api.alsa.headroom": .info.props."api.alsa.headroom"}'

pw-dump | jq '.[] | select(.type=="PipeWire:Interface:Node") | {id: .id, "node.name": .info.props."node.name", "node.description": .info.props."node.description", "priority.driver": .info.props."priority.driver", "priority.session": .info.props."priority.session", "api.alsa.headroom": .info.props."api.alsa.headroom"}'

{
  "id": 51,
  "node.name": "alsa_output.pci-0000_08_00.1.hdmi-surround-extra3",
  "node.description": "Navi 21/23 HDMI/DP Audio Controller",
  "priority.driver": 1100,
  "priority.session": 1100,
  "api.alsa.headroom": 1024
}

{
  "id": 51,
  "node.name": "alsa_output.pci-0000_08_00.1.hdmi-surround-extra3",
  "node.description": "Navi 21/23 HDMI/DP Audio Controller",
  "priority.driver": 1100,
  "priority.session": 1100,
  "api.alsa.headroom": 1024
}

monitor.alsa.rules = [
  {
    matches = [
      {
        node.name = "alsa_output.pci-0000_08_00.1.hdmi-surround-extra3"
      }
    ]
    actions = {
      update-props = {
         priority.driver = 1100
         priority.session = 1100
         api.alsa.headroom = 1024
      }
    }
  }
]

monitor.alsa.rules = [
  {
    matches = [
      {
        node.name = "alsa_output.pci-0000_08_00.1.hdmi-surround-extra3"
      }
    ]
    actions = {
      update-props = {
         priority.driver = 1100
         priority.session = 1100
         api.alsa.headroom = 1024
      }
    }
  }
]

pw-dump | jq '.[] | select(.type=="PipeWire:Interface:Node") | {id: .id, "node.name": .info.props."node.name", "node.description": .info.props."node.description", "priority.driver": .info.props."priority.driver", "priority.session": .info.props."priority.session", "api.alsa.headroom": .info.props."api.alsa.headroom"}'

pw-dump | jq '.[] | select(.type=="PipeWire:Interface:Node") | {id: .id, "node.name": .info.props."node.name", "node.description": .info.props."node.description", "priority.driver": .info.props."priority.driver", "priority.session": .info.props."priority.session", "api.alsa.headroom": .info.props."api.alsa.headroom"}'