# The NuForce uDAC (Savitech chip) has flaky firmware: when PipeWire # idles and then resumes its ALSA node, the device often fails the # resulting SET_INTERFACE / sample-rate renegotiation with a USB stall # (spa.alsa: set_hw_params: Broken pipe). Enough of these in a row make # the device drop off the USB bus and require a physical replug. # # Keeping the node's hardware stream open (no idle-suspend) avoids the # repeated renegotiation and stops the crashes. monitor.alsa.rules = [ { matches = [ { node.name = "~alsa_output.usb-Nuforce_Inc\\._NuForce_USB_Audio-.*" } ] actions = { update-props = { session.suspend-timeout-seconds = 0 } } } ]