Ubuntu
linux-lowlatency package

3.8.x low latency kernels poor performance with usb

Bug #1185368 reported by James Stone
8
This bug affects 1 person
Affects Status Importance Assigned to Milestone
linux-lowlatency (Ubuntu)
New
Undecided
Unassigned

Bug Description

Ubuntu version - Raring, Ubuntu Studio.

I cannot use any of the 3.8.x series of low latency kernels for audio use with my usb Focusrite Scarlett 2i4 (I have tried the last 2 releases). The lowest latency I can get in qjackctl is 512 (it won't start jackd with lower), and performance is seriously degraded, with multiple xruns. The system runs fine with a 3.5.x kernel (I can start jackd with a latency of 64 samples in qjackctl, and with much greater system stability).

Revision history for this message
Kaj Ailomaa (zequence) wrote :

Could you please report the bug by using the tool "ubuntu-bug". Using a terminal:

ubuntu-bug linux-lowlatency

Thanks.

Revision history for this message
James Stone (jamesmstone) wrote :

OK - done. It's appeared under linux-meta-lowlatency for some reason.

To post a comment you must log in.
This report contains Public information  
Everyone can see this information.
Subscribing...

Other bug subscribers

Remote bug watches

Bug watches keep track of this bug in other bug trackers.