For a few months, I have been sharing my internet connection with my Galaxy S9+ to my ubuntu computer using the feature USB Modem, with USB Debug.
A few days ago, I changed my GPU so I installed drivers with ubuntu-drivers autoinstall I didn't reboot the computer and the day after after having booted my computer I connect my galaxy S9+ to share my connection and I see that the modem isn't recognized.
So we can suppose that the drivers installation is the source of the issue but we cannot be sure.
The issue doesn't come from the s9+ after having tested it on other computers.
Here is the output of a few commands:
user@machine:~$ lsusb
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 004: ID 046d:c52b Logitech, Inc. Unifying Receiver
Bus 001 Device 003: ID 03f0:0b92 HP, Inc HyperX Virtual Surround Sound
Bus 001 Device 007: ID 04e8:6864 Samsung Electronics Co., Ltd GT-I9070 (network tethering, USB debugging enabled)
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
user@machine:~$ lsmod
Module Size Used by
xt_conntrack 16384 1
nft_chain_nat 16384 3
snd_seq_dummy 16384 0
snd_hrtimer 16384 1
snd_seq_midi 20480 0
snd_seq_midi_event 16384 1 snd_seq_midi
xt_MASQUERADE 20480 1
snd_rawmidi 53248 1 snd_seq_midi
nf_nat 61440 2 nft_chain_nat,xt_MASQUERADE
snd_seq 94208 9 snd_seq_midi,snd_seq_midi_event,snd_seq_dummy
snd_seq_device 16384 3 snd_seq,snd_seq_midi,snd_rawmidi
snd_timer 49152 2 snd_seq,snd_hrtimer
nf_conntrack_netlink 61440 0
snd 135168 6 snd_seq,snd_seq_device,snd_timer,snd_rawmidi
nf_conntrack 204800 4 xt_conntrack,nf_nat,nf_conntrack_netlink,xt_MASQUERADE
soundcore 16384 1 snd
nf_defrag_ipv6 24576 1 nf_conntrack
nf_defrag_ipv4 16384 1 nf_conntrack
xfrm_user 61440 2
xfrm_algo 20480 1 xfrm_user
xt_addrtype 16384 2
nft_compat 20480 4
nf_tables 344064 57 nft_compat,nft_chain_nat
libcrc32c 16384 3 nf_conntrack,nf_nat,nf_tables
nfnetlink 24576 5 nft_compat,nf_conntrack_netlink,nf_tables
nvidia_uvm 1785856 0
binfmt_misc 24576 1
nls_iso8859_1 16384 1
nvidia_drm 94208 5
nvidia_modeset 1314816 7 nvidia_drm
video 73728 1 nvidia_modeset
nvidia 56537088 242 nvidia_uvm,nvidia_modeset
kvm_amd 204800 0
kvm 1347584 1 kvm_amd
irqbypass 16384 1 kvm
crct10dif_pclmul 16384 1
crc32_pclmul 16384 0
polyval_clmulni 16384 0
drm_kms_helper 249856 1 nvidia_drm
polyval_generic 16384 1 polyval_clmulni
ghash_clmulni_intel 16384 0
sha512_ssse3 53248 0
aesni_intel 397312 0
crypto_simd 20480 1 aesni_intel
cryptd 28672 2 crypto_simd,ghash_clmulni_intel
syscopyarea 16384 1 drm_kms_helper
joydev 32768 0
sysfillrect 20480 1 drm_kms_helper
sysimgblt 16384 1 drm_kms_helper
ccp 131072 1 kvm_amd
input_leds 16384 0
wmi 40960 1 video
overlay 188416 0
iptable_filter 16384 0
ip6table_filter 16384 0
ip6_tables 40960 1 ip6table_filter
br_netfilter 32768 0
bridge 413696 1 br_netfilter
stp 16384 1 bridge
llc 16384 2 bridge,stp
arp_tables 32768 0
msr 16384 0
parport_pc 53248 0
ppdev 24576 0
lp 28672 0
drm 692224 9 drm_kms_helper,nvidia,nvidia_drm
parport 73728 3 parport_pc,lp,ppdev
efi_pstore 16384 0
ip_tables 36864 1 iptable_filter
x_tables 65536 9 ip6table_filter,xt_conntrack,iptable_filter,nft_compat,xt_addrtype,ip6_tables,ip_tables,xt_MASQUERADE,arp_tables
autofs4 57344 2
hid_generic 16384 0
usbhid 69632 0
hid 176128 2 usbhid,hid_generic
ahci 49152 2
xhci_pci 24576 0
libahci 57344 1 ahci
xhci_pci_renesas 20480 1 xhci_pci
