[Bug 218544] not enough bandwidth, synaptics hi-res audio duplex audio

[bugzilla-daemon@kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=218544

Alan Stern (stern@rowland.harvard.edu) changed:

           What    |Removed                     |Added
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                 CC|                            |stern@rowland.harvard.edu

--- Comment #5 from Alan Stern (stern@rowland.harvard.edu) ---
The devices file shows that the Synaptics audio device is sharing the same bus
with a Broadcom Bluetooth device.  Maybe if you disabled that device the audio
would work better.  Try doing:

  echo 0 >/sys/bus/usb/devices/1-1.4/bConfigurationValue

and then trying the audio.

There's also a video camera on that bus, but since it runs at high speed rather
than full speed, it probably isn't interfering significantly.  If you want, you
can try disabling it also by issuing the same command with 1-1.6 in place of
1-1.4.

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