je réenvoie les tests avec le téléphone en modem usb :
flo@Ludwig:~$ ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: enp9s0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc fq_codel state DOWN group default qlen 1000
link/ether d8:50:e6:d2:d8:74 brd ff:ff:ff:ff:ff:ff
3: eno1: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc fq_codel state DOWN group default qlen 1000
link/ether d8:50:e6:d2:d7:ac brd ff:ff:ff:ff:ff:ff
7: usb0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UNKNOWN group default qlen 1000
link/ether 7a:de:f5:9c:fd:6f brd ff:ff:ff:ff:ff:ff
inet 192.168.42.251/24 brd 192.168.42.255 scope global dynamic noprefixroute usb0
valid_lft 3570sec preferred_lft 3570sec
inet6 fe80::56ad:5e3c:e99e:b441/64 scope link noprefixroute
valid_lft forever preferred_lft forever
flo@Ludwig:~$ lsmod | grep usb
usbnet 45056 2 rndis_host,cdc_ether
mii 20480 1 usbnet
btusb 57344 0
btrtl 24576 1 btusb
btbcm 16384 1 btusb
btintel 24576 1 btusb
bluetooth 581632 31 btrtl,btintel,btbcm,bnep,btusb,rfcomm
usbhid 57344 1 hid_logitech_dj
hid 131072 4 usbhid,hid_generic,hid_logitech_dj,hid_logitech_hidpp
usb_storage 77824 1 uas
je vais essayer ce que tu m'as dit