As this issue was very annoying, I bought a headset-adapter and switched away from using a USB audio device to using the built-in audio adapter of my Thinkpad X121e, so this issue was off my radar. Sorry for the lack of feedback. I've just given the latest kernel a test and it still happens, which is to be expected, given that my device is connected to an OHCI-controller, not EHCI. I'll give Alan's latest OHCI-patch a try.
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1191603 Title: raring-updates: regression: 3.8.0-24.35 causes sporadic failure of USB audio devices Status in “linux” package in Ubuntu: Incomplete Bug description: The 3.8.0-24.35 kernel update in raring introduced sporadic failure of USB audio devices. The symptoms are that the device suddenly stops working and you get the following dmesg output: [ 7532.838274] cannot submit urb (err = -18) [ 7532.838283] cannot submit urb (err = -18) [ 7532.838291] cannot submit urb (err = -18) [ 7532.842224] delay: estimated 288, actual 96 [ 7532.922160] delay: estimated 432, actual 96 This bug has been introduced by the following commits (UHCI: implement new semantics for URB_ISO_ASAP, OHCI: implement new semantics for URB_ISO_ASAP): https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c44b225077bb1fb25ed5cd5c4f226897b91bedd4 https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6a41b4d3fe8cd4cc95181516fc6fba7b1747a27c A fix has been released (USB: fix latency in uhci-hcd and ohci-hcd): https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=e1944017839d7dfbf7329fac4bdec8b4050edf5e The fix hasn't been backported to 3.8 yet, but as this bug was introduced to raring by pulling upstream kernel changes, it would be nice to backport the fix to raring as soon as possible. For further reference: http://markmail.org/message/gt554vejrjkutsfw#query:+page:1+mid:gt554vejrjkutsfw+state:results https://bbs.archlinux.org/viewtopic.php?id=163891 http://comments.gmane.org/gmane.linux.usb.general/85343 http://lists.opensuse.org/opensuse-bugs/2013-05/msg01617.html To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1191603/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
