Hi Marcel I would like to get some clues to the problem of running BlueZ under VMWare or VMware-Fusion I have tested many Bluetooth USB devices on nativity installed Linux systems and on guest under VMWare. The RFCOMM connection speed differs dramatically in VM guest. When on native Linux I have 600,000 bit/sec in VM guest it would be 20,000 bit/sec or less. Devices I tired: USB TRUST BT-2210Tp, USB D-Link DBT-120, Microsoft Wireless Transceiver v 2.0, Toshiba Bluetooth V2.0 EDR USB Adapter PA3455U-1BT Under host Win XP VMWare 6.5: I tired guest Ubuntu 8.10 32 bit, Fedora 9 and 10 32and 64 bit, SUSE 11.1 32 bit Under host OS X Leo VMware-Fusion 2.0.1: I tired guest Fedora 10 32 bit All with the same results! Connection speed is 20,000 bit/sec or less on Linux guest system . The most confusing is that when under Win XP host I tired Windows XP guest with ms or widcomm stack I got the speed that is very comparable to native RFCOMM speed for the same device. Vlad bluecove.org PS I have not tired Linux as host operating system for another Linux. -- To unsubscribe from this list: send the line "unsubscribe linux-bluetooth" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html