On Tue, Jul 27, 2021 at 12:37:28AM +0100, Razgriz375 (Neil) wrote: > Hello, > > Since updating from 5.10.17, I have not been able to get my Walkman > A55 to work as a USB DAC with my device. My system specs are as > follows: > > Surface Pro 4 > Pop_OS 21.04 x86_64 > Kernel 5.12.10-surface > CPU Intel i5-6300U > Mem 4GB > > I can switch back to 5.10.17-surface which I have done and the USB DAC > starts working again. This issue has also been reported in > https://bbs.archlinux.org/viewtopic.php?id=264051&p=2 > > I'm pretty amateur at linux, but happy to help and provide more > information if required. I guess this is a niche issue as it's not > been reported as far as I can tell. > > Desmg output is attached as your spam filter intercepted the raw > information in the email. > > Kind regards, > > Neil > [ 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? thanks, greg k-h
