Some additional information: This issue also exists with the latest ALSA 1.0.25 snapshot, but the error messages are more informative: usb_set_interface fails with -EPIPE. The host then continues calling usb_set_interface with different parameters until the device is unplugged:
Aug 18 15:46:10 andean kernel: [16605.374295] ALSA pcm.c:322 6:3:1: usb_set_interface failed (-32) Aug 18 15:46:13 andean kernel: [16607.904844] ALSA pcm.c:322 6:4:3: usb_set_interface failed (-32) Aug 18 15:46:13 andean kernel: [16607.905468] ALSA pcm.c:322 6:3:1: usb_set_interface failed (-32) Aug 18 15:46:15 andean kernel: [16610.422240] ALSA pcm.c:322 6:4:3: usb_set_interface failed (-32) Aug 18 15:46:15 andean kernel: [16610.423063] ALSA pcm.c:322 6:3:1: usb_set_interface failed (-32) When looking at the USB messages between the host and the sound card using wireshark, it looks like several URB_ISOCHRONOUS transfers fail with -ECONNRESET just before the host makes the first usb_set_interface call that returns -EPIPE. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1036979 Title: [USB-Audio - USB Sound Blaster HD, playback] X-Fi HD playback fails after a while with a beeping sound and usb_set_interface failed errors To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1036979/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
