Thank you for your answers, Serge. Hereafter are the information:
> strings /lib/x86_64-linux-gnu/libusb-1.0.so.0.1.0 | grep libusb_get_p
libusb_get_port_number
libusb_get_parent
libusb_get_port_numbers
libusb_get_port_path
libusb_get_pollfds
libusb_get_port_numbers
> /usr/bin/qemu-system-x86_64 -vnc :1
/usr/bin/qemu-system-x86_64: symbol lookup error: /usr/bin/qemu-system-x86_64:
undefined symbol: libusb_get_port_numbers
but strangely:
strings /lib/libusb-1.0.so.0.1.0 | grep libusb_get_p
libusb_get_port_number
libusb_get_parent
libusb_get_port_path
libusb_get_pollfds
By checking the modified date, and finding all files that have been modified
the exact same day, it turns out that it was a third-party software ( XIMEA
video camera) that installed this library... (installed on all my computers)
Thanks for the help, and sorry for wasting your time...
** Changed in: qemu (Ubuntu)
Status: Incomplete => Invalid
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https://bugs.launchpad.net/bugs/1408692
Title:
libvirt does not start because libusb_get_port_numbers symbol is
undefined
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