alors ... encore une fois, je te remercie pour ta reponse.
lsusb | sort; echo; lsusb -t
matt@mat-port:~$ lsusb | sort; echo; lsusb -t
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 003: ID 187c:0520 Alienware Corporation
Bus 001 Device 006: ID 064e:8127 Suyin Corp.
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 003: ID 8087:07da Intel Corp.
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
/: Bus 04.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/4p, 5000M
/: Bus 03.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/4p, 480M
/: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=ehci-pci/2p, 480M
|__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/8p, 480M
|__ Port 5: Dev 3, If 0, Class=Wireless, Driver=btusb, 12M
|__ Port 5: Dev 3, If 1, Class=Wireless, Driver=btusb, 12M
/: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=ehci-pci/2p, 480M
|__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/6p, 480M
|__ Port 2: Dev 3, If 0, Class=Human Interface Device, Driver=, 12M
|__ Port 5: Dev 6, If 0, Class=Video, Driver=uvcvideo, 480M
|__ Port 5: Dev 6, If 1, Class=Video, Driver=uvcvideo, 480M
|__ Port 5: Dev 6, If 2, Class=Video, Driver=, 480M
matt@mat-port:~$
lsmod | sort
matt@mat-port:~$ lsmod | sort
aesni_intel 372736 10
af_alg 24576 6 algif_hash,algif_skcipher
ahci 40960 3
algif_hash 16384 1
algif_skcipher 16384 1
atl1c 53248 0
autofs4 45056 2
binfmt_misc 24576 1
bluetooth 581632 41 btrtl,btintel,btbcm,bnep,btusb,rfcomm
bnep 24576 2
btbcm 16384 1 btusb
btintel 24576 1 btusb
btrfs 1253376 0
btrtl 24576 1 btusb
btusb 57344 0
ccm 20480 6
cfg80211 704512 3 iwldvm,iwlwifi,mac80211
cmac 16384 3
coretemp 20480 0
cqhci 28672 1 sdhci_pci
crc32_pclmul 16384 0
crct10dif_pclmul 16384 1
cryptd 24576 4 crypto_simd,ghash_clmulni_intel
crypto_simd 16384 1 aesni_intel
dcdbas 20480 1 dell_smbios
dell_rbtn 20480 0
dell_smbios 28672 1 dell_wmi
dell_smo8800 20480 0
dell_wmi 20480 0
dell_wmi_descriptor 20480 2 dell_wmi,dell_smbios
dm_crypt 40960 1
drm 491520 5 drm_kms_helper,i915
drm_kms_helper 184320 1 i915
ecc 28672 1 ecdh_generic
ecdh_generic 16384 2 bluetooth
fb_sys_fops 16384 1 drm_kms_helper
ghash_clmulni_intel 16384 0
glue_helper 16384 1 aesni_intel
hfs 61440 0
hfsplus 110592 0
hid 131072 2 usbhid,hid_generic
hid_generic 16384 0
i2c_algo_bit 16384 1 i915
i2c_i801 32768 0
i915 1986560 18
input_leds 16384 0
intel_cstate 20480 0
intel_powerclamp 20480 0
intel_rapl_common 24576 1 intel_rapl_msr
intel_rapl_msr 20480 0
ip_tables 32768 0
iwldvm 237568 0
iwlwifi 331776 1 iwldvm
jfs 188416 0
joydev 24576 0
kvm 663552 1 kvm_intel
kvm_intel 282624 0
libahci 32768 1 ahci
libarc4 16384 1 mac80211
libcrc32c 16384 2 btrfs,xfs
lp 20480 0
lpc_ich 24576 0
mac80211 843776 1 iwldvm
mac_hid 16384 0
mc 53248 4 videodev,videobuf2_v4l2,uvcvideo,videobuf2_common
mei 106496 3 mei_hdcp,mei_me
mei_hdcp 24576 0
mei_me 40960 1
memstick 20480 1 rtsx_pci_ms
minix 36864 0
Module Size Used by
msdos 20480 0
ntfs 106496 0
parport 53248 3 parport_pc,lp,ppdev
parport_pc 40960 0
ppdev 24576 0
psmouse 155648 0
qnx4 16384 0
raid6_pq 114688 1 btrfs
rapl 20480 0
rfcomm 81920 16
rtsx_pci 73728 2 rtsx_pci_sdmmc,rtsx_pci_ms
rtsx_pci_ms 24576 0
rtsx_pci_sdmmc 28672 0
sch_fq_codel 20480 6
sdhci 65536 1 sdhci_pci
sdhci_pci 53248 0
serio_raw 20480 0
snd 90112 19 snd_seq,snd_seq_device,snd_hda_codec_hdmi,snd_hwdep,snd_hda_intel,snd_hda_codec,snd_timer,snd_pcm,snd_hda_codec_ca0132,snd_rawmidi
snd_hda_codec 131072 3 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec_ca0132
snd_hda_codec_ca0132 110592 1
snd_hda_codec_hdmi 61440 1
snd_hda_core 90112 4 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec,snd_hda_codec_ca0132
snd_hda_intel 53248 5
snd_hwdep 20480 1 snd_hda_codec
snd_intel_dspcfg 24576 1 snd_hda_intel
snd_pcm 106496 6 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec,snd_hda_core,snd_hda_codec_ca0132
snd_rawmidi 36864 1 snd_seq_midi
snd_seq 69632 2 snd_seq_midi,snd_seq_midi_event
snd_seq_device 16384 3 snd_seq,snd_seq_midi,snd_rawmidi
snd_seq_midi 20480 0
snd_seq_midi_event 16384 1 snd_seq_midi
snd_timer 36864 2 snd_seq,snd_pcm
soundcore 16384 1 snd
sparse_keymap 16384 1 dell_wmi
syscopyarea 16384 1 drm_kms_helper
sysfillrect 16384 1 drm_kms_helper
sysimgblt 16384 1 drm_kms_helper
ufs 81920 0
usbhid 57344 0
uvcvideo 98304 0
vboxdrv 487424 2 vboxnetadp,vboxnetflt
vboxnetadp 28672 0
vboxnetflt 28672 0
video 49152 2 dell_wmi,i915
videobuf2_common 49152 2 videobuf2_v4l2,uvcvideo
videobuf2_memops 20480 1 videobuf2_vmalloc
videobuf2_v4l2 24576 1 uvcvideo
videobuf2_vmalloc 20480 1 uvcvideo
videodev 225280 3 videobuf2_v4l2,uvcvideo,videobuf2_common
wmi 32768 4 dell_wmi,wmi_bmof,dell_smbios,dell_wmi_descriptor
wmi_bmof 16384 0
x86_pkg_temp_thermal 20480 0
xfs 1277952 0
xor 24576 1 btrfs
x_tables 40960 1 ip_tables
zstd_compress 167936 1 btrfs
matt@mat-port:~$
dmesg | grep usb
matt@mat-port:~$ dmesg | grep usb
[ 0.614208] usbcore: registered new interface driver usbfs
[ 0.614208] usbcore: registered new interface driver hub
[ 0.614208] usbcore: registered new device driver usb
[ 0.778026] pci 0000:00:1a.0: quirk_usb_early_handoff+0x0/0x662 took 18833 usecs
[ 0.798013] pci 0000:00:1d.0: quirk_usb_early_handoff+0x0/0x662 took 19487 usecs
[ 1.294040] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 5.04
[ 1.294043] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 1.294046] usb usb1: Product: EHCI Host Controller
[ 1.294049] usb usb1: Manufacturer: Linux 5.4.0-47-generic ehci_hcd
[ 1.294051] usb usb1: SerialNumber: 0000:00:1a.0
[ 1.314055] usb usb2: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 5.04
[ 1.314058] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 1.314061] usb usb2: Product: EHCI Host Controller
[ 1.314063] usb usb2: Manufacturer: Linux 5.4.0-47-generic ehci_hcd
[ 1.314065] usb usb2: SerialNumber: 0000:00:1d.0
[ 1.316561] usb usb3: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 5.04
[ 1.316564] usb usb3: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 1.316566] usb usb3: Product: xHCI Host Controller
[ 1.316568] usb usb3: Manufacturer: Linux 5.4.0-47-generic xhci-hcd
[ 1.316570] usb usb3: SerialNumber: 0000:00:14.0
[ 1.318087] usb usb4: New USB device found, idVendor=1d6b, idProduct=0003, bcdDevice= 5.04
[ 1.318089] usb usb4: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 1.318092] usb usb4: Product: xHCI Host Controller
[ 1.318094] usb usb4: Manufacturer: Linux 5.4.0-47-generic xhci-hcd
[ 1.318095] usb usb4: SerialNumber: 0000:00:14.0
[ 1.629875] usb 1-1: new high-speed USB device number 2 using ehci-pci
[ 1.649879] usb 2-1: new high-speed USB device number 2 using ehci-pci
[ 1.790243] usb 1-1: New USB device found, idVendor=8087, idProduct=0024, bcdDevice= 0.00
[ 1.790248] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 1.806216] usb 2-1: New USB device found, idVendor=8087, idProduct=0024, bcdDevice= 0.00
[ 1.806223] usb 2-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 2.089873] usb 1-1.2: new full-speed USB device number 3 using ehci-pci
[ 2.097861] usb 2-1.5: new full-speed USB device number 3 using ehci-pci
[ 2.202937] usb 1-1.2: config 1 interface 0 altsetting 0 has 2 endpoint descriptors, different from the interface descriptor's value: 1
[ 2.204155] usb 1-1.2: New USB device found, idVendor=187c, idProduct=0520, bcdDevice= 0.00
[ 2.204160] usb 1-1.2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 2.204163] usb 1-1.2: Product: M17x
[ 2.204167] usb 1-1.2: Manufacturer: Alienware
[ 2.204170] usb 1-1.2: SerialNumber: 1.0.7
[ 2.214393] usb 2-1.5: New USB device found, idVendor=8087, idProduct=07da, bcdDevice=78.69
[ 2.214399] usb 2-1.5: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 2.219648] usbcore: registered new interface driver usbhid
[ 2.219649] usbhid: USB HID core driver
[ 2.225709] hid-generic 0003:187C:0520.0001: hiddev0,hidraw0: USB HID v1.01 Device [Alienware M17x] on usb-0000:00:1a.0-1.2/input0
[ 2.281871] usb 1-1.5: new high-speed USB device number 4 using ehci-pci
[ 2.391453] usb 1-1.5: New USB device found, idVendor=064e, idProduct=8127, bcdDevice=27.03
[ 2.391457] usb 1-1.5: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 2.391460] usb 1-1.5: Product: Laptop_Integrated_Webcam_FHD
[ 2.391462] usb 1-1.5: Manufacturer: QCM
[ 15.651442] usbcore: registered new interface driver btusb
[ 15.694893] input: Laptop_Integrated_Webcam_FHD: I as /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.5/1-1.5:1.0/input/input12
[ 15.695071] usbcore: registered new interface driver uvcvideo
[ 17.251269] audit: type=1400 audit(1600440251.337:6): apparmor="STATUS" operation="profile_load" profile="unconfined" name="ippusbxd" pid=1027 comm="apparmor_parser"
[ 18.598680] usb 1-1.2: usbfs: interface 0 claimed by usbhid while 'python3' sets config #1
[ 381.438829] usb 1-1.5: USB disconnect, device number 4
[ 389.341861] usb 1-1.5: new high-speed USB device number 5 using ehci-pci
[ 389.450901] usb 1-1.5: New USB device found, idVendor=064e, idProduct=8127, bcdDevice=27.03
[ 389.450906] usb 1-1.5: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 389.450908] usb 1-1.5: Product: Laptop_Integrated_Webcam_FHD
[ 389.450910] usb 1-1.5: Manufacturer: QCM
[ 389.484732] input: Laptop_Integrated_Webcam_FHD: I as /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.5/1-1.5:1.0/input/input19
[ 1853.940935] usb 1-1.5: USB disconnect, device number 5
[ 1855.699687] usb 1-1.5: new high-speed USB device number 6 using ehci-pci
[ 1855.809070] usb 1-1.5: New USB device found, idVendor=064e, idProduct=8127, bcdDevice=27.03
[ 1855.809075] usb 1-1.5: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 1855.809078] usb 1-1.5: Product: Laptop_Integrated_Webcam_FHD
[ 1855.809080] usb 1-1.5: Manufacturer: QCM
[ 1855.842919] input: Laptop_Integrated_Webcam_FHD: I as /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.5/1-1.5:1.0/input/input20
matt@mat-port:~$ dmesg | grep usb
[ 0.614208] usbcore: registered new interface driver usbfs
[ 0.614208] usbcore: registered new interface driver hub
[ 0.614208] usbcore: registered new device driver usb
[ 0.778026] pci 0000:00:1a.0: quirk_usb_early_handoff+0x0/0x662 took 18833 usecs
[ 0.798013] pci 0000:00:1d.0: quirk_usb_early_handoff+0x0/0x662 took 19487 usecs
[ 1.294040] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 5.04
[ 1.294043] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 1.294046] usb usb1: Product: EHCI Host Controller
[ 1.294049] usb usb1: Manufacturer: Linux 5.4.0-47-generic ehci_hcd
[ 1.294051] usb usb1: SerialNumber: 0000:00:1a.0
[ 1.314055] usb usb2: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 5.04
[ 1.314058] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 1.314061] usb usb2: Product: EHCI Host Controller
[ 1.314063] usb usb2: Manufacturer: Linux 5.4.0-47-generic ehci_hcd
[ 1.314065] usb usb2: SerialNumber: 0000:00:1d.0
[ 1.316561] usb usb3: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 5.04
[ 1.316564] usb usb3: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 1.316566] usb usb3: Product: xHCI Host Controller
[ 1.316568] usb usb3: Manufacturer: Linux 5.4.0-47-generic xhci-hcd
[ 1.316570] usb usb3: SerialNumber: 0000:00:14.0
[ 1.318087] usb usb4: New USB device found, idVendor=1d6b, idProduct=0003, bcdDevice= 5.04
[ 1.318089] usb usb4: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 1.318092] usb usb4: Product: xHCI Host Controller
[ 1.318094] usb usb4: Manufacturer: Linux 5.4.0-47-generic xhci-hcd
[ 1.318095] usb usb4: SerialNumber: 0000:00:14.0
[ 1.629875] usb 1-1: new high-speed USB device number 2 using ehci-pci
[ 1.649879] usb 2-1: new high-speed USB device number 2 using ehci-pci
[ 1.790243] usb 1-1: New USB device found, idVendor=8087, idProduct=0024, bcdDevice= 0.00
[ 1.790248] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 1.806216] usb 2-1: New USB device found, idVendor=8087, idProduct=0024, bcdDevice= 0.00
[ 1.806223] usb 2-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 2.089873] usb 1-1.2: new full-speed USB device number 3 using ehci-pci
[ 2.097861] usb 2-1.5: new full-speed USB device number 3 using ehci-pci
[ 2.202937] usb 1-1.2: config 1 interface 0 altsetting 0 has 2 endpoint descriptors, different from the interface descriptor's value: 1
[ 2.204155] usb 1-1.2: New USB device found, idVendor=187c, idProduct=0520, bcdDevice= 0.00
[ 2.204160] usb 1-1.2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 2.204163] usb 1-1.2: Product: M17x
[ 2.204167] usb 1-1.2: Manufacturer: Alienware
[ 2.204170] usb 1-1.2: SerialNumber: 1.0.7
[ 2.214393] usb 2-1.5: New USB device found, idVendor=8087, idProduct=07da, bcdDevice=78.69
[ 2.214399] usb 2-1.5: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 2.219648] usbcore: registered new interface driver usbhid
[ 2.219649] usbhid: USB HID core driver
[ 2.225709] hid-generic 0003:187C:0520.0001: hiddev0,hidraw0: USB HID v1.01 Device [Alienware M17x] on usb-0000:00:1a.0-1.2/input0
[ 2.281871] usb 1-1.5: new high-speed USB device number 4 using ehci-pci
[ 2.391453] usb 1-1.5: New USB device found, idVendor=064e, idProduct=8127, bcdDevice=27.03
[ 2.391457] usb 1-1.5: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 2.391460] usb 1-1.5: Product: Laptop_Integrated_Webcam_FHD
[ 2.391462] usb 1-1.5: Manufacturer: QCM
[ 15.651442] usbcore: registered new interface driver btusb
[ 15.694893] input: Laptop_Integrated_Webcam_FHD: I as /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.5/1-1.5:1.0/input/input12
[ 15.695071] usbcore: registered new interface driver uvcvideo
[ 17.251269] audit: type=1400 audit(1600440251.337:6): apparmor="STATUS" operation="profile_load" profile="unconfined" name="ippusbxd" pid=1027 comm="apparmor_parser"
[ 18.598680] usb 1-1.2: usbfs: interface 0 claimed by usbhid while 'python3' sets config #1
[ 381.438829] usb 1-1.5: USB disconnect, device number 4
[ 389.341861] usb 1-1.5: new high-speed USB device number 5 using ehci-pci
[ 389.450901] usb 1-1.5: New USB device found, idVendor=064e, idProduct=8127, bcdDevice=27.03
[ 389.450906] usb 1-1.5: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 389.450908] usb 1-1.5: Product: Laptop_Integrated_Webcam_FHD
[ 389.450910] usb 1-1.5: Manufacturer: QCM
[ 389.484732] input: Laptop_Integrated_Webcam_FHD: I as /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.5/1-1.5:1.0/input/input19
[ 1853.940935] usb 1-1.5: USB disconnect, device number 5
[ 1855.699687] usb 1-1.5: new high-speed USB device number 6 using ehci-pci
[ 1855.809070] usb 1-1.5: New USB device found, idVendor=064e, idProduct=8127, bcdDevice=27.03
[ 1855.809075] usb 1-1.5: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 1855.809078] usb 1-1.5: Product: Laptop_Integrated_Webcam_FHD
[ 1855.809080] usb 1-1.5: Manufacturer: QCM
[ 1855.842919] input: Laptop_Integrated_Webcam_FHD: I as /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.5/1-1.5:1.0/input/input20
