Hi Neil, > -----Original Message----- > From: AMoonRabbit <razgriz.wilson6@xxxxxxxxx> No top posts please. On Tue, 27 Jul, 2021 at 7:43 am, "Schmid, Carsten" <Carsten_Schmid@xxxxxxxxxx> wrote: > Hi Greg, > > On Tue, Jul 27, 2021 at 12:37:28AM +0100, Razgriz375 (Neil) wrote: > >>> [ 109.668465] usb 1-1: USB disconnect, device number 2 >>> [ 110.084429] usb 1-1: new high-speed USB device number 5 using >>> xhci_hcd >>> [ 110.237963] usb 1-1: New USB device found, idVendor=054c, >>> idProduct=0b8c, bcdDevice= 1.00 >>> [ 110.237989] usb 1-1: New USB device strings: Mfr=2, Product=3, >>> SerialNumber=4 >>> [ 110.238002] usb 1-1: Product: WALKMAN >>> [ 110.238011] usb 1-1: Manufacturer: Sony >>> [ 110.238019] usb 1-1: SerialNumber: 10458B55477916 >>> [ 110.342104] usb 1-1: 1:7 : unsupported format bits 0x100000000 >>> [ 110.343953] usbcore: registered new interface driver >>> snd-usb-audio >>> >> >> >> Looks like you removed the device and then added it back? And it >> says >> the device is supported by the kernel now, what does not work >> properly? > > But earlier in boot these messages are seen: > [ 1.908489] usb 1-1: New USB device found, idVendor=054c, > idProduct=0ca1, bcdDevice= 1.00 > [ 1.908503] usb 1-1: New USB device strings: Mfr=2, Product=3, > SerialNumber=4 > [ 1.908508] usb 1-1: Product: WALKMAN > [ 1.908513] usb 1-1: Manufacturer: Sony > [ 1.908516] usb 1-1: SerialNumber: 10458B55477916 > [ 2.195821] usb-storage 1-1:1.0: USB Mass Storage device detected > [ 2.195988] scsi host0: usb-storage 1-1:1.0 > > ProductId is different, that's strange. > > Neil, could you collect the dmesg from the working kernel 5.10 please? > And: is the device expected to be a mass storage (aka USB disk) and > sound card in one? > > So this is the Dmesg output from 5.10.17 with working output to USB DAC > (Walkman visually gets audio as the amp meter visualiser works where as > on newer kernels, whilst the system looks to be outputting sound, the > Walkman shows it's receiving nothing). ... > [ 12.202312]usb 1-1: new high-speed USB device number 3 using xhci_hcd > [ 12.351838]usb 1-1: New USB device found, idVendor=054c, > idProduct=0b8c, bcdDevice= 1.00 > [ 12.351844]usb 1-1: New USB device strings: Mfr=2, Product=3, > SerialNumber=4 > [ 12.351847]usb 1-1: Product: WALKMAN > [ 12.351850]usb 1-1: Manufacturer: Sony > [ 12.351852]usb 1-1: SerialNumber: 10458B55477916 > [ 38.560172]usb 1-1: 1:7 : unsupported format bits 0x100000000 > [ 38.562750]usbcore: registered new interface driver snd-usb-audio > [ 38.630995]snd_hda_intel 0000:00:1f.3: DSP detected with PCI > class/subclass/prog-if info 0x040380 Looks like on the old kernel the Walkman is seen as the first sound card. On the new kernel, it was seen as a mass storage first and later switched to snd-usb. Please check if your Walkman appears as a sound card in the new kernel and if it is muted due to not being the default output. Thanks, Carsten ----------------- Siemens Electronic Design Automation GmbH; Anschrift: Arnulfstraße 201, 80634 München; Gesellschaft mit beschränkter Haftung; Geschäftsführer: Thomas Heurung, Frank Thürauf; Sitz der Gesellschaft: München; Registergericht München, HRB 106955