On 31 March 2014 23:00, Greg KH <greg@xxxxxxxxx> wrote: > On Mon, Mar 31, 2014 at 10:17:20PM +0200, Russel Hughes wrote: >> Hi, >> >> Thanks for replying. I can use a some USB audio devices, ones based >> around the Ti PCM2704 are fine, the DAC I want to use is called an >> audiolab MDAC and as I said it has an elasticity buffer, this sits at >> 50% full and is rock solid, as it should do, on USB 2.0 devices under >> Ubuntu 12.04 LTS fully patched ASRock 330 but not on the 12.04 LTS >> fully patched Intel NUC, where it reaches a maximum of 20% is highly >> erratic and drops out from time to time. The lsmod output is as >> follows: > > I have no idea what kernel release Ubuntu is using, but I suggest, if > you have issues with that specific kernel, filing a bug with Ubuntu. > Otherwise, if you can run a kernel.org release, can you please try 3.14 > and see if that changes anything or not? > > thanks, > > greg k-h I think I have changed the kernel: uname -r 3.14.0-031400-generic But it has exactly the same problem. I will do a usbmon when I get time and post the results back here as requested. I dont know if its of any interest but the HDMI audio stopped working so I had to switch back to the old kernel, then it worked again. Thanks -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
