Hi, I reproduced the Bug. After installing new Verions off libusb, libspice, and vinagre I tried starting with $ LD_PRELOAD=/usr/lib/x86_64-linux-gnu/libusb-1.0.so vinagre
That worked. So i finally straced the library calls during startup and figured out, that the Problem was caused by an 3rd Party libusb-1.0 which had been installed in /usr/lib/. However the dynamic linker prefers this over the distribution one. Fix-1: Comment out /usr/local/lib in /etc/ld.so.conf.d/libc.conf Run ldconf Fix-2: Remove/rename this Lib Run ldconf Jan