The current version of the Amazon Fire Cube 2nd (922Z) system being used is Coreelec 21.1, found a bug and need help to solve it. have an Audeze Maxwell earphone inside Dolby Atmos authorization, and when use a 2.4G wireless USB dongle to plug it into the docking station, the（Alsa Maxwell dongle）option is displayed in the system‘s audio but playing the film cannot output sound. use Bluetooth can output sound. Please help to solve the problem. Thanks Coreelec team for support!
my best guess from you log is the problem is here, I don’t know if this means the dongle doesn’t support the audio format used by kodi:
2024-09-26 20:21:06.643 T:5544 info <general>: Creating audio stream (codec id: 86060, channels: 8, sample rate: 48000, no pass-through)
2024-09-26 20:21:06.644 T:4431 info <general>: CActiveAESink::OpenSink - initialize sink
2024-09-26 20:21:06.644 T:4431 info <general>: CAESinkALSA::Initialize - Attempting to open device "@:CARD=Dongle,DEV=0"
2024-09-26 20:21:06.648 T:4431 info <general>: CAESinkALSA::Initialize - Opened device "surround71:CARD=Dongle,DEV=0"
2024-09-26 20:21:06.648 T:4431 info <general>: CAESinkALSA::InitializeHW - Your hardware does not support AE_FMT_FLOAT, trying other formats
2024-09-26 20:21:06.648 T:4431 error <general>: CAESinkALSA::InitializeHW - Unable to find a suitable output format
2024-09-26 20:21:06.649 T:4431 info <general>: CAESinkALSA::Initialize - Attempting to open device "@"
2024-09-26 20:21:06.655 T:4431 info <general>: CAESinkALSA::Initialize - Opened device "surround71"
2024-09-26 20:21:06.656 T:4431 info <general>: CAESinkALSA::InitializeHW - Your hardware does not support AE_FMT_FLOAT, trying other formats
2024-09-26 20:21:06.656 T:4431 info <general>: CAESinkALSA::InitializeHW - Using data format AE_FMT_S24NE4
I don’t think Xbox runs on linux, so whatever audio driver it’s using there isn’t going to help in CE. It’s hard troubleshoot the headset without having it to work with. It may rely on some audio driver that’s not present or fully functional in CE-NG and/or linux 4.9.
[ 604.229119@2]- usb 1-2.2: new high-speed USB device number 13 using xhci-hcd
[ 604.334027@2]- usb 1-2.2: New USB device found, idVendor=3329, idProduct=4b18
[ 604.334031@2]- usb 1-2.2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 604.334033@2]- usb 1-2.2: Product: Audeze Maxwell XBOX Dongle
[ 604.334034@2]- usb 1-2.2: Manufacturer: Audeze LLC
[ 604.334036@2]- usb 1-2.2: SerialNumber: 0000000000000000
[ 604.362919@2]- input: Audeze LLC Audeze Maxwell XBOX Dongle as
/devices/platform/ff500000.dwc3/xhci-hcd.0.auto/usb1/1-2/1-2.2/1-2.2:1.0/0003:3329:4B18.0008/input/input12
[ 604.422683@2]- hid-generic 0003:3329:4B18.0008: input,hiddev0,hidraw0: USB HID v1.10 Device [Audeze LLC Audeze Maxwell XBOX Dongle] on usb-xhci-hcd.0.auto-2.2/input0
[ 609.128234@2]- usb 1-2.2: USB disconnect, device number 13
[ 611.496957@2]- usb 1-2.2: 5:1: cannot get freq at ep 0x2
[ 611.561534@2]- usb 1-2.2: 10:1: cannot get min/max values for control 2 (id 10)
[ 704.360236@2]- usb 1-2.2: USB disconnect, device number 14
[ 704.364869@2]h usb 1-2.2: cannot submit urb (err = -19)
[ 704.364939@0]- usb 1-2.2: 2:1: cannot set freq 48000 to ep 0x1
, pls understand and help to solve the problem. thank u 
!