Hey everyone! To try work around some sound issues in Ubuntu I recently bought one of these: https://www.ugreen.com/products/2-in-1-usb-external-sound-card The audio output works just fine, but the input from the mic doesn't work at all. An extracted portion from running the alsa-info.sh script: !!Soundcards recognised by ALSA !!----------------------------- 0 [PCH ]: HDA-Intel - HDA Intel PCH HDA Intel PCH at 0x80788000 irq 167 1 [Audio ]: USB-Audio - USB Audio Generic USB Audio at usb-0000:00:14.0-1.1.3, full speed So it appears as though this USB device is being picked up as a generic USB audio module. According to the manufacturer it uses the ACL4030 chip from Realtek, but I can't find any info on this chip. Diff from running usb-devices without and with the device plugged in: 63a64,73 > T: Bus=03 Lev=03 Prnt=04 Port=02 Cnt=03 Dev#= 10 Spd=12 MxCh= 0 > D: Ver= 1.10 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1 > P: Vendor=0bda ProdID=49b5 Rev=00.03 > S: Manufacturer=Generic > S: Product=USB Audio > C: #Ifs= 3 Cfg#= 1 Atr=a0 MxPwr=100mA > I: If#=0x0 Alt= 0 #EPs= 1 Cls=01(audio) Sub=01 Prot=00 Driver=snd-usb-audio > I: If#=0x1 Alt= 1 #EPs= 1 Cls=01(audio) Sub=02 Prot=00 Driver=snd-usb-audio > I: If#=0x2 Alt= 0 #EPs= 1 Cls=03(HID ) Sub=00 Prot=00 Driver=usbhid > Diff from running lsusb without and with the device plugged in: > Bus 003 Device 009: ID 0bda:49b5 Realtek Semiconductor Corp. Does the generic USB audio driver support recording/input? I'm happy to contribute towards the driver support if someone can point me in the right direction. Any help would be greatly appreciated! Thane _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user
