[Bug 436043] Re: Ralink wifi doesn't work with latest -rt kernel

[Nicolas Joyard]

I did some additional experiments with rt2* modules.

I tried compiling and installing the drivers from ralinktech.com
(ignoring the errors and blacklisting rt2800usb, as indicated on several
forum threads I found). They work perfectly with the -generic kernel,
and seem to work better than the stock modules with -rt: NetworkManager
shows correct network signal strengths and remote hosts are finally
reachable.

However, when using the -rt kernel, after a few minutes the system
becomes very sluggish (or, to be more precise, mouse and keyboard input
are sluggish, as the system overall performance seem to be normal), with
no additional visible kernel messages and nothing hogging system
resources (at least to the extent visible in top).

Then I tried getting the linux-backports-modules source package and
compiled it against 2.6.31-9-rt. It worked, but gave the exact same
results as the ralink driver (I guess linux-backports-modules contains
the latest ralink drivers).

I also tried using Wicd instead of NetworkManager, with the same
results. In a few days I will try using the ralink driver with its .dat
configuration file.

I have one question, though. Are there any options I could pass to the
rt2xxx modules to make them more verbose ? I had a quick look at the
driver source, but couldn't find any.

-- 
Ralink wifi doesn't work with latest -rt kernel
https://bugs.launchpad.net/bugs/436043
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