Hi Clemens and everybody else, I just rebuilt my kernel activating CONFIG_USB_EHCI_TT_NEWSCHED as you suggested and I still get the same problem with the usual messages when the sound is messed-up and I try to play the next song ; [ 758.452549] usb 3-2: amarokapp timed out on ep0out len=0/0 [ 758.452561] ALSA sound/usb/usbaudio.c:1346: 2:1:1: usb_set_interface failed Is there anything else I can try or must I activate the new USN scheduling at runtime? Thank you, Samuel On November 3, 2009 10:24:27 Clemens Ladisch wrote: > Samuel Gilbert wrote: > > I own a HiFi USB sound card based on a TI Burr-Brown chip. It worked > > out of the box with Linux on two of my machines. However, I have bought > > a new machine and now I still haven't found a way to make it play > > correctly. After a random amount of time, the sound gets garbled. This > > is probably an issue with the USB host controller or it's driver. > > There are known firmware bugs in several TI chips that have this > symptom, but that is unlikely to be your problem if it does not occur > with your other computers. > > Do you have CONFIG_USB_EHCI_TT_NEWSCHED enabled? > > > I *NEVER* heard a on-board or PCI sound card that come close to the > > sound quality you can get with a good USB one. > > The high-end Xonar cards are definitely better (if overpriced). > > > Best regards, > Clemens ------------------------------------------------------------------------------ Come build with us! The BlackBerry(R) Developer Conference in SF, CA is the only developer event you need to attend this year. Jumpstart your developing skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9 - 12, 2009. Register now! http://p.sf.net/sfu/devconference _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user