Sorry for overlooking part of the request in comment #71. I have done an extra usbmon trace using the following kernel, which is not affected by this bug:
$ uname -a Linux tysontan-ThinkPad-X201-Tablet 3.5.0-25-generic #39-Ubuntu SMP Mon Feb 25 18:26:58 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux Using the mehtod described in the following URL: https://www.kernel.org/doc/Documentation/usb/usbmon.txt The raw file is attached in this comment. ** Attachment added: "usbmon trace result of Arce MDAC5 (unaffected kernel)" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1136110/+attachment/3648880/+files/2.mon.out -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1136110 Title: USB Audio Codec choppy playback To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1136110/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
