the signal bar is working for me (atheros abg, madwifi), and the % value gets updated with every scan cycle - which still leaves me disconnected for about 18s with every AP scan!
since CVS-1-31 NM seems to use values for "Link Quality=x/y" (as in seen iwconfig), and NM computes a percentage signal strength as x / y * 100 (at least for me). earlier NM versions had ln x / ln y * 100. both methods seem to be used in applets (eg, gwlan uses the logarithmic method). now, being close my AP, gwlan reports 90%, while NM says 60%. i understand the drivers also use different algorithms to come up with the signal/link quality numbers. i would be very grateful if somebody (Bill?) could explain to me (off the list is fine) where these numbers come from (signal - noise?, power?) and what they signify. and ultimately, what a "correct" way of getting a % from these is. again, it's probably driver specific, but i would be happy to have an answer for a specific example (eg, ipw2200). for my card and driver, the x in iwconfig's Link Quality seems to be just Noise Level - Signal Level. Sven > CVS-2-2 is working nicely. The only problem I have found is that > NMApplet is no longer showing signal strength in the bar. However, the > signal strength is shown when you hover and what is shown is exactly > tracking what is shown by iwconfig for link quality. > > My wireless driver is ipw2200. The way ipw2200 computes link quality is > to minimize 5 values, one of which is signal quality. Under good > conditions, link quality is the same as signal quality. I wrote a patch > to replace the ipw2200 linear model for signal quality with a more > accurate quadratic model and now my link quality, when booted in FC3, > matches my link quality, when booted in Windows XP, for what that is worth. > _______________________________________________ NetworkManager-list mailing list [email protected] http://mail.gnome.org/mailman/listinfo/networkmanager-list
