Hi. I'm also affected by this bug. I'm not running any desktop environment; just a basic window manager (notion) on top of X. The failure is as described in the original bug report.
It is reasonable to run applications that configure the network as root, and many people do that. Prior to the recent changes to X, "sudo wpa_gui" worked just fine, so I imagine that this particular bug is experienced by many users of wpa_gui. Furthermore, "sudo xeyes" works just fine as well, so there's something special about the way wpa_gui talks to the X server. Are members of the netdev group supposed to be able to talk to the wpa supplicant? If so, then that package is currently misconfigured. If it's not possible to get wpa_gui to work with the latest X server, it'd be nice for the suggested workarounds to be reported along with the error messages. Or at the very least, a note in /usr/share/doc/wpagui would be nice. Thanks!
