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Description of problem:
as shown on attached picture, there are no signal levels of non-connected networks in nm-applet
after switch to wifi-wext-only=true in NetworkManager.conf I can see them back again.
Version-Release number of selected component (if applicable):
NetworkManager-0.8.1-15.el6.x86_64
kernel-2.6.32-216.el6.bz750350.4.x86_64
wpa_supplicant-0.7.3-2.el6.x86_64
How reproducible:
100%
Steps to Reproduce:
1.plug in ZyDas Zyxel AG-220 USB wireless dongle
2.open nm-applet
Actual results:
no signal levels
Expected results:
correct signal levels as before when using wext driver
Additional info:
This will be an issue with adm8211, at76, rtl818x, and zd1211rw drivers. They don't report signal strength in dBm, but instead in "unspecified" units that are somewhat ambiguous. NM's report is due to a bug in wpa_supplicant (still present upstream in git master):
} else if (bss[NL80211_BSS_SIGNAL_UNSPEC]) {
r->level = nla_get_u8(bss[NL80211_BSS_SIGNAL_UNSPEC]);
r->flags |= WPA_SCAN_LEVEL_INVALID;
that should be "r->flags |= WPA_SCAN_QUAL_INVALID;" instead of LEVEL_INVALID.
A very low-risk change; we can do a zstream or something if people want that.
Comment 9RHEL Program Management
2011-12-13 04:42:49 UTC
This request was evaluated by Red Hat Product Management for inclusion
in a Red Hat Enterprise Linux maintenance release. Product Management has
requested further review of this request by Red Hat Engineering, for potential
inclusion in a Red Hat Enterprise Linux Update release for currently deployed
products. This request is not yet committed for inclusion in an Update release.
Moving to wpa_supplicant since that's where the bug is (see comment 8)
Comment 13RHEL Program Management
2012-02-08 07:03:22 UTC
This request was evaluated by Red Hat Product Management for inclusion
in a Red Hat Enterprise Linux maintenance release. Product Management has
requested further review of this request by Red Hat Engineering, for potential
inclusion in a Red Hat Enterprise Linux Update release for currently deployed
products. This request is not yet committed for inclusion in an Update release.
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
http://rhn.redhat.com/errata/RHBA-2012-0978.html