https://bugzilla.kernel.org/show_bug.cgi?id=212955 --- Comment #9 from Alan Stern (stern@xxxxxxxxxxxxxxxxxxx) --- Interesting. I don't see any particular differences as far as the USB core is concerned, but there are major differences in the way the device gets used. You can even see it in the dmesg output: [ 963.375444] usb 4-1.5: 0:1: add audio endpoint 0x2 [ 963.376273] usb 4-1.5: 1:1: add audio endpoint 0x81 Those lines are present in 5.9 but not in 5.12, and they occur before the problem happens. These messages may not be directly relevant to the problem at hand, but they do point to changes in the audio drivers. Those changes may expose a bug somewhere else. Judging from these results, I will guess that your bisection tests will pinpoint a commit that affects the snd-ua101 audio driver. -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug.
