I noticed two bugs: 1) Monitor mode hangs the system randomly, and what is interesting that this bug disappears if I patch the driver with packet injection patch from Gábor Stefanik. I noticed this bug, after I removed his patch to see if it caused some problems. Always reproducible, usually hangs just after airodump launch. 2) If I enable monitor mode regardless of injection patch, the scanning results got garbaged, iwlist scan reports > 100 quality on most APs, or 0% quality on my router, shows extremely low and hi power levels, like -127dBm or 160 dBm, and those levels change rapidly. This why I removed the injection patch, I suspected it, but this bug appears to be not related to it. Injection patch from Gábor Stefanik attached (I modified the patch to apply on latest wireless -git, but patch is the same) I use iw to create new monitor interface and use it. Best regards, Maxim Levitsky