3.8.x low latency kernels poor performance with usb
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux-lowlatency (Ubuntu) |
Fix Released
|
Undecided
|
Unassigned |
Bug Description
(this is being re-reported with ubuntu-bug as requested by Kaj Ailomaa).
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).
ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: linux-lowlatency 3.8.0.22.11
ProcVersionSign
Uname: Linux 3.5.0-28-lowlatency x86_64
ApportVersion: 2.9.2-0ubuntu8
Architecture: amd64
Date: Wed May 29 20:29:23 2013
InstallationDate: Installed on 2013-02-06 (112 days ago)
InstallationMedia: Ubuntu-Studio 12.10 "Quantal Quetzal" - Release amd64 (20121017.1)
MarkForUpload: True
SourcePackage: linux-meta-
UpgradeStatus: Upgraded to raring on 2013-05-05 (24 days ago)
affects: | linux-meta-lowlatency (Ubuntu) → linux-lowlatency (Ubuntu) |
Status changed to 'Confirmed' because the bug affects multiple users.