QlandkarteGT fails to conect to Garmin device

Hi folks!
I tried to use garmin 60csx with QLandkarteGT form SUSE 11.3 repo and after I configured device and tried to download tracks from it I got following error:

Failed to download tracks. Failed to configure USB: Device or resource busy

The kernel driver ‘dummy’ is blocking. Please use ‘rmmod dummy’ as root to remove it temporarily. You might consider to add ‘blacklist dummy’ to your modeprobe.conf, to remove the module permanently.
But, system insists that there is no such module

rmmod dummy

ERROR: Module dummy does not exist in /proc/modules

As it was working fine in 11.2 - I assume that reason is change in USB handling…

could you please advice?

thanks in advance!