HDMI sound issue with UGREEN usb-c
Hello,
I have an issue on my archlinux where the sound from the HDMI port isn't played on the tv speaker
uname -a
Linux computer 6.18.21-1-lts #1 SMP PREEMPT_DYNAMIC Thu, 02 Apr 2026 15:44:36 +0000 x86_64 GNU/Linux
I have only one sink listed
pactl list short sinks
471 alsa_output.pci-0000_00_1f.3.hdmi-stereo PipeWire s32le 2ch 48000Hz RUNNING
While the HDMI is detected
But still the sound doesn't come up in the speakers
cat /proc/asound/card0/eld\#2.16
monitor_present 1
eld_valid 1
codec_pin_nid 0xb
codec_dev_id 0x0
codec_cvt_nid 0x3
monitor_name AAA
connection_type DisplayPort
eld_version [0x2] CEA-861D or below
edid_version [0x3] CEA-861-B, C or D
manufacture_id 0x1863
product_id 0x0
port_id 0x0
support_hdcp 0
support_ai 0
audio_sync_delay 0
speakers [0x1] FL/FR
sad_count 1
sad0_coding_type [0x1] LPCM
sad0_channels 2
sad0_rates [0xe0] 32000 44100 48000
sad0_bits [0x6] 16 20
It used to work yesterday and after a screen off/ screen on, it sudently stopped working.
The hub is also working with a Windows computer
I think it might be a mapping error between alsa/pipewire/wireplumber and the physical output but I don't know how to fix it.
Did it already happen to you ? Or do you have any insights on where to look please ?
PS : I have the extra1,2,3 also available but they doesn't work also.
Thank you !
When connecting the hub I get the following dmesg
[ +8,723541] usb 3-4: new high-speed USB device number 10 using xhci_hcd
[ +0,137487] usb 3-4: New USB device found, idVendor=05e3, idProduct=0610, bcdDevice= 6.63
[ +0,000005] usb 3-4: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ +0,000001] usb 3-4: Product: USB2.1 Hub
[ +0,000001] usb 3-4: Manufacturer: GenesysLogic
[ +0,001323] hub 3-4:1.0: USB hub found
[ +0,000269] hub 3-4:1.0: 4 ports detected
[ +0,047857] usb 2-3: new SuperSpeed USB device number 7 using xhci_hcd
[ +0,023577] usb 2-3: New USB device found, idVendor=05e3, idProduct=0626, bcdDevice= 6.63
[ +0,000004] usb 2-3: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ +0,000001] usb 2-3: Product: USB3.1 Hub
[ +0,000001] usb 2-3: Manufacturer: GenesysLogic
[ +0,001302] hub 2-3:1.0: USB hub found
[ +0,000804] hub 2-3:1.0: 4 ports detected
[ +0,277662] usb 2-3.3: new SuperSpeed USB device number 8 using xhci_hcd
[ +0,018880] usb 2-3.3: New USB device found, idVendor=0b95, idProduct=1790, bcdDevice= 2.00
[ +0,000005] usb 2-3.3: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ +0,000001] usb 2-3.3: Product: AX88179B
[ +0,000001] usb 2-3.3: Manufacturer: ASIX
[ +0,000001] usb 2-3.3: SerialNumber: 006C1FF770BFAA
[ +0,048744] cdc_ncm 2-3.3:2.0: MAC-Address: 6c:1f:f7:72:06:ee
[ +0,000006] cdc_ncm 2-3.3:2.0: setting rx_max = 16384
[ +0,000266] cdc_ncm 2-3.3:2.0: setting tx_max = 16384
[ +0,000391] cdc_ncm 2-3.3:2.0 eth0: register 'cdc_ncm' at usb-0000:00:0d.0-3.3, CDC NCM (NO ZLP), 6c:1f:f7:72:06:
ee
[ +0,008501] cdc_ncm 2-3.3:2.0 enp0s13f0u3u3c2: renamed from eth0
[ +0,822938] usb 3-4.2: new full-speed USB device number 11 using xhci_hcd
[ +0,106144] usb 3-4.2: New USB device found, idVendor=4037, idProduct=2804, bcdDevice= 1.10
[ +0,000004] usb 3-4.2: New USB device strings: Mfr=0, Product=1, SerialNumber=0
[ +0,000001] usb 3-4.2: Product: 2.4G Composite Devic
[ +0,006777] input: 2.4G Composite Devic as /devices/pci0000:00/0000:00:14.0/usb3/3-4/3-4.2/3-4.2:1.0/0003:4037:28
04.0009/input/input41
[ +0,130537] hid-generic 0003:4037:2804.0009: input,hidraw2: USB HID v1.10 Keyboard [2.4G Composite Devic] on usb-
0000:00:14.0-4.2/input0
[ +0,002511] input: 2.4G Composite Devic Mouse as /devices/pci0000:00/0000:00:14.0/usb3/3-4/3-4.2/3-4.2:1.1/0003:4
037:2804.000A/input/input42
[ +0,000088] input: 2.4G Composite Devic Consumer Control as /devices/pci0000:00/0000:00:14.0/usb3/3-4/3-4.2/3-4.2
:1.1/0003:4037:2804.000A/input/input43
[ +0,050707] input: 2.4G Composite Devic System Control as /devices/pci0000:00/0000:00:14.0/usb3/3-4/3-4.2/3-4.2:1
.1/0003:4037:2804.000A/input/input44
[ +0,000053] hid-generic 0003:4037:2804.000A: input,hidraw3: USB HID v1.10 Mouse [2.4G Composite Devic] on usb-000
0:00:14.0-4.2/input1
And I don't have more message when plugging in the HDMI separetly.
I have found this topic: https://bbs.archlinux.org/viewtopic.php?id=309588 and followed this article https://wiki.archlinux.org/title/PipeWire#Simultaneous_output_to_multiple_sinks_on_the_same_sound_card but it seems that it creates two sinks but the HDMI one still doesn't work
pactl list sinks short
57 alsa_output.pci-0000_00_1f.3.analog-stereo PipeWire s32le 2ch 48000Hz IDLE
58 alsa_output.pci-0000_00_1f.3.hdmi-stereo PipeWire s32le 2ch 48000Hz RUNNING