[LAU] USB on ThinkPad T520

Clemens Ladisch clemens at ladisch.de
Sun May 13 20:28:57 UTC 2012

Robin Gareus wrote:
> Maybe you can do play some tricks on the EHCI controller/scheduler: add
> an old USB1.1 hub in between the soundcard and the PC... but that's just
> a shot in the dark.

The problem would be with the driver (which stays the same), not with the

Furthermore, it's probably that the EHCI driver issues are not related
with this problem, as they result in a failure to allocate bandwidth
and not in increased latency.

It's likely that some other hardware or driver or power management
interferes with processing.  If this is done by the BIOS, there is
no way around it.


More information about the Linux-audio-user mailing list