-------------------------------------------- On Fri, 7/12/13, Daniel Mack <zonque@xxxxxxxxx> wrote: Subject: Re: Benchmark Media DAC2 HGC iffy USB 2.0 audio To: "Jeff S" <four_season_photo@xxxxxxxxx> Cc: alsa-user@xxxxxxxxxxxxxxxxxxxxx Date: Friday, July 12, 2013, 3:27 AM > Could you try again in this Thinkpad and see if that machine > also shows > the "-71" errors? I'm just trying to rule out host > controller issues. Yes, Ubuntu 12.10 (with kernel 3.5.0) on my ThinkPad X230 produced the same -71 error. > Also, please provide the output of 'lspci -v', and it would > be great if > you could also try kernel version 3.10 (it should work with > 3.8 of > course, but maybe that gives us a hint). Kernel 3.10.0 is looking promising! Previously, I never had actually gotten audio output from the DAC2+Thinkpad+Ubuntu 12.10 combo (kernel 3.5.0), though after much fussing-about, the OS would seemingly correctly recognize the DAC as a UAC 2.0 device, and PulseAudio meter would show activity (though I'd have no analog audio output). But after upgrading to kernel 3.10.0? Not only do I have audio output, but I have so far not had any trouble at all with the OS correctly detecting the UAC 2.0 device. As a UAC 1.0 device, it's still broken, producing "usb_set_interface failed" messages as before, but I suppose there's no point in my using it in that mode anymore. Configuration-wise, I simply reused the Ubuntu-supplied 3.5.0 config file. Output of lspci -v on the X230 + Kernel 3.10.0: https://www.dropbox.com/s/2jf32bx3eyz4404/results_of_lspci-v_thinkpad_x230_kernel_3.10.txt I'm currently compiling 3.10.0 for my music PC, but this will take awhile, as it's an Intel Atom box. Even if it does seem to work, I will try to break it over the next couple of days. Jeff ------------------------------------------------------------------------------ See everything from the browser to the database with AppDynamics Get end-to-end visibility with application monitoring from AppDynamics Isolate bottlenecks and diagnose root cause in seconds. Start your free trial of AppDynamics Pro today! http://pubads.g.doubleclick.net/gampad/clk?id=48808831&iu=/4140/ostg.clktrk _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user
