On Tue, 2007-07-24 at 18:57 -0600, Xavier Callejas wrote: > Hi, > > The problem is that NetworkManager shows all the scanned wireless networks as > they would has the optimus quality signal (at 100%), nevertheless some of > them has poor quality signal. > > 'iwlist' shows the right values.
No, it doesn't. You'll note that the Quality reported by iwlist is completely bogus: Quality=30/70 Signal level=-65 dBm Noise level=-95 dBm The first # is the difference between signal and noise, which certainly doesn't conform to the WEXT specification. Second, what does the atheros driver set in the reported quality flags? What does it call valid? NM uses the quality reported by the driver as valid before it falls back to a signal/noise ratio. In any case, there are also OpenSUSE patches that special-case madwifi signal quality reporting in NM which could also be malfunctioning. It could be that NM is getting the calculations wrong. However, madwifi has misreported quality for so long that I'm skeptical. Dan > This is my system: > > openSUSE 10.2 > Kernel 2.6.22-45 > Atheros AR5212 802.11abg > Madwifi: > ath_hal: 0.9.30.13 > wlan: 0.8.4.2 (svn r2591) > ath_pci: 0.9.4.5 (svn r2591) > ath_rate_sample: 1.2 (svn r2591) > wireless-tools-29pre10-22 > > Please look at these files to see how the problem looks like: > > ftp://central.ibcinc.com.sv/xavier/NM/screenshot.png > ftp://central.ibcinc.com.sv/xavier/NM/nm-tool.txt > ftp://central.ibcinc.com.sv/xavier/NM/iwlist.txt > > Thank you in advance. > _______________________________________________ NetworkManager-list mailing list [email protected] http://mail.gnome.org/mailman/listinfo/networkmanager-list
