Ubuntu
linux package

  1. Bug #836250
  2. Comment #48

Comment 48 for bug 836250

Revision history for this message
rkrizan (ryankrizan) wrote : Re: [Oneiric] Intel Corporation Centrino Ultimate-N 6300 poor networking, packet loss and very slow Lenovo X201 and T500 laptops

Here's the problem with using previous kernels. I tried several things immediately after installing 11.10. I tried the latest upstream kernel, 3.0.6 (at the time), and I also tried the latest developmental build with 3.1-RC9, both kernels had the same issue. However, both kernels did NOT have this issue when used under 11.04. In other words, laptop using 3.0.6 with 11.04, no issue. Same laptop with 11.10 with 3.0.6, had an issue.

So, that being said, after installing 11.10, I installed the latest proven-working NATTY kernel (I believe it was 2.6.38-8) and the issue was still there.

11.04 with 3.0.6 = OK
11.04 with 3.1-RC9 = OK
11.04 with 2.6.38.8 = OK

However;

11.10 with 3.0.6 = BAD
11.10 with 3.1-RC9 = BAD
11.10 with 2.6.38-8 = BAD
UNLESS 11n_disable=1, then all is good.

I'm starting to think this is more a driver issue, than a kernel issue. I realize that 3.0.7 has been released, but I haven't tested that kernel yet.