-------------------------------------------- On Thu, 7/11/13, 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: Thursday, July 11, 2013, 8:09 AM Hi Jeff, please do not top-post. On 11.07.2013 05:44, Jeff S wrote: > Thanks for the reply, Daniel. > > Yes, switching the Benchmark DAC2 from UAC 1.0 to 2.0 is done in > hardware. > > No Mac OS X drivers or any other software needed to operate in UAC > 1.0 or 2.0 modes. > > Works natively in Windows in UAC 1.0 mode, uses Benchmark-supplied > driver for UAC 2.0 mode. Nothing about this driver looks remarkable > to me, except that it provides the means to upgrade the DAC's > firmware. > > I have added more files Dropbox: > https://www.dropbox.com/sh/eq9ed280i1kka4a/hSsAYhyRJ7 >Your system signals an error code of -71, which is an > internal USB >protocol error. That is usually caused by broken USB > peripherals and/or > bogus host controllers. > > Before analyzing anything else: is that PC you run Linux on > the same > that you use for your Windows tests? Is there any other > difference in > the setups, like USB hubs for instance? > > >Daniel Hi Daniel, I did previously test Windows 7 + Benchmark DAC on this same PC w/o problems. No USB hubs used, same Benchmark-supplied USB cable. I've also tried it with Windows 8 and Ubuntu on a late-model Thinkpad: Windows 8 is fine, Ubuntu has similar issues. 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
