D-Link USB Ethernet adapter loses connection with upower -e

[greenbaarron]

Hardware in question: D-Link DUB-E100 http://www.dlink.com/products/?pid=133

Software causing problem: upower / starting x11 with udev use flag build
kernel version: gentoo-sources 2.6.36-r5

Well basically I found this as my house mates came crying out of their rooms that the internet was down. I had just run "startx" with my brand new x11 build that has the 'hal' use flag removed and the udev flag added. The ethernet adapter stops working, a complete cold restart of the system is required to regain communications to anything on the ethernet adapter.

I have been able to reliably reproduce the same behavior by running the command "upower -e" in console.
Now this is where the fun starts, I have netplugd running, and if the adapter were reset / lost connection it would notify the '/var/log/messages' log, but there is nothing there. Indeed there are no useful entries in either dmesg or messages...or Xorg.0.log.

So that leaves me at '?'. What I think is happening, but can't find how to prove it, is that the USB bus is getting set to a power state that the DUB-E100 doesn't know how to wake from. Any ideas? Does anyone know what 'upower -e' does exactly? It is quite possible that I have forgotten some things in the move to udev from hal so I am going to try and run a search on that tomorrow and make sure I did it right.

Thank you all.