On Mon, 2009-05-04 at 12:27 -0700, Cahill, Ben M wrote: > > >-----Original Message----- > >From: Maxim Levitsky [mailto:maximlevitsky@xxxxxxxxx] > >Sent: Monday, May 04, 2009 3:04 PM > >To: Cahill, Ben M > >Cc: iwlwifi maling list; linux-wireless > >Subject: RE: [ipw3945-devel] IWL3945 always reports noise > >levels of -127 > > > >On Mon, 2009-05-04 at 11:53 -0700, Cahill, Ben M wrote: > >> When one of our devices cannot figure out what the actual > >noise level is, it reports -127. > >> > >> Newer devices are better at old devices at figuring noise > >level. IIRC, 3945 cannot figure noise for CCK signals, and > >may not be possible with OFDM as well. > > > >Why then it did work on older kernel ? > >(and noise levels seemed to be correct) > > Hmmm, good point, and I don't know the answer! :-( > And I do know it now (this is what I suspected...) This is firmware issue. I forced the driver to use older firmware iwlwifi-3945-1.ucode, and noise levels are back. Regards, Maxim Levitsky -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
