Messages in this thread | | | Date | Mon, 14 Sep 2015 10:50:27 +0300 | From | Mathias Nyman <> | Subject | Re: Bug in Linux USB stack |
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On 12.09.2015 00:56, Andrew Gillis wrote: > I get an error when trying to play music through USB DACs under Linux. This > only happens with a few high end DACs and only when using a NEC uPD72020x > chipset USB 3.0 port. > > The people at RedHat think it may be the NEC uPD72020x chipset is reporting > it's capabilities incorrectly. > > I'm not sure why some only some DACs are effected. it may depend on their > chipsets. > > There is a detailed description of the bug with traces here > > https://bugzilla.redhat.com/show_bug.cgi?id=1240798 > > Any idea what I can do to fix this? >
Can you re-send the logs. Both dmesg with xhci debugging enabled and lsusb -v. Clicking the links to the logs in redhat bugzilla justs says "The paste you are looking for does not exist"
The command completion code 0x11 (17 dec) is a parameter error, indicating that xhci thinks that some value we used in the input context is wrong.
-Mathias
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