Hi,

I did install the recent SSU and the occassional error with wlan0 switching into power management off instead of shutting down is still present (maybe someone - me? - should file a bug report ...).

However, since I started to look at dmesg or iwconfig output after manually disabling wifi and to manually set the power management option there was no other complete drain. As for the moment I can live with that. My guess would be some kind of race condition when shutting down wlan, hard to track down then.

Cheers

My previous guess, modest, does not seem to be the cause alone.