slow wifi with new kernel

[Mauricio Pretto]

Binary package hint: kernel-package

After updating to the just new kernel in natty my wifi download don't go as fast as 12kb/s

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: kernel-package (not installed)
ProcVersionSignature: Ubuntu 2.6.38-1.28-generic 2.6.38-rc2
Uname: Linux 2.6.38-1-generic x86_64
Architecture: amd64
Date: Fri Jan 28 22:12:35 2011
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Alpha amd64 (20101206)
ProcEnviron:
 LANGUAGE=en
 LANG=pt_BR.utf8
 LC_MESSAGES=en_AG.utf8
 SHELL=/bin/bash
SourcePackage: kernel-package

[Mauricio Pretto (pretto)]

All images rc1, rc2, rc3 have this problem there is a huge regression on wi-fi speed 2.6.38 tree

[Tobias Wolf (tobias-mr-wolf)]

I really hope the developers will solve that kernel issue, it is a real nuisance :(
As a workaround I'm using an older kernel version than the one that came with the upgrade to ubuntu natty.

For now it is fine, but I'd like to profit from the newest kernel version as well...

[Mauricio Pretto (pretto)]

Hi Tobias
do you have the same issue ?
I have also another bug reported which is more detailed Bug #721449, if you can share your side of the story also so we can confirm this bug