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[Bougron <question293348@xxxxxxxxxxxxxxxxxxxxx>]

New question #293348 on Ubuntu:
https://answers.launchpad.net/ubuntu/+question/293348

Bonjour
Je  peux utiliser ma clé USB3 sur un port USB3 avec windows mais pas avec ubuntu 16.04 sauf à y mettre un prolongateur

u1604btrfs@u1604btrfs:~$ cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=16.04
DISTRIB_CODENAME=xenial
DISTRIB_DESCRIPTION="Ubuntu 16.04 LTS"
u1604btrfs@u1604btrfs:~$ 

La clé USB3 de 64 GO connectée directement à un port USB3 n’a aucun problème avec windows10 avec un débit moyen de 42 MB/s,
La clé USB3 de 64 GO connectée via un càble USB de prolongation  (20 cm)  à un port USB3 fonctionne avec un débit moyen de 26 MB/s avec ubuntu
Un disque USB3 connecté à ce même port USB3 fonctionne avec un débit moyen de 106 MB/s avec ubuntu,
La clé USB3 de 64 GO connectée directement à un port USB3 ne se monte pas  avec ubuntu, Je pense à un problème logiciel, Merci de votre avis,


Trace DMESG du branchement direct 
[15027.934173] usb 3-1: USB disconnect, device number 3
[15113.908384] usb 4-1: new SuperSpeed USB device number 3 using xhci_hcd
[15113.949359] usb 4-1: New USB device found, idVendor=0951, idProduct=1666
[15113.949370] usb 4-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[15113.949377] usb 4-1: Product: DataTraveler 3.0
[15113.949387] usb 4-1: Manufacturer: Kingston
[15113.949395] usb 4-1: SerialNumber: 60A44C426697FE50C98100E8
[15118.948235] usb 4-1: Set SEL for device-initiated U2 failed.
[15118.951961] usb 4-1: Disable of device-initiated U1 failed.
[15118.955466] usb 4-1: Disable of device-initiated U2 failed.
[15118.955474] usb-storage 4-1:1.0: USB Mass Storage device detected
[15118.955648] scsi host9: usb-storage 4-1:1.0
[15118.959180] usb 4-1: Set SEL for device-initiated U1 failed.
[15118.962661] usb 4-1: Set SEL for device-initiated U2 failed.
[15118.962810] usb 4-1: USB disconnect, device number 3
[15455.620301] perf interrupt took too long (2527 > 2500), lowering kernel.perf_event_max_sample_rate to 50000


Trace DMESG du branchement via un câble prolongateur,
[15455.620301] perf interrupt took too long (2527 > 2500), lowering kernel.perf_event_max_sample_rate to 50000
[15930.041889] usb 3-1: new high-speed USB device number 4 using xhci_hcd
[15930.248230] usb 3-1: New USB device found, idVendor=0951, idProduct=1666
[15930.248237] usb 3-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[15930.248241] usb 3-1: Product: DataTraveler 3.0
[15930.248244] usb 3-1: Manufacturer: Kingston
[15930.248246] usb 3-1: SerialNumber: 60A44C426697FE50C98100E8
[15930.248591] usb 3-1: ep 0x81 - rounding interval to 128 microframes, ep desc says 255 microframes
[15930.248610] usb 3-1: ep 0x2 - rounding interval to 128 microframes, ep desc says 255 microframes
[15930.249352] usb-storage 3-1:1.0: USB Mass Storage device detected
[15930.251542] scsi host10: usb-storage 3-1:1.0
[15932.447123] scsi 10:0:0:0: Direct-Access     Kingston DataTraveler 3.0 1.00 PQ: 0 ANSI: 6
[15932.447953] sd 10:0:0:0: Attached scsi generic sg2 type 0
[15932.449447] sd 10:0:0:0: [sdb] 120845300 512-byte logical blocks: (61.9 GB/57.6 GiB)
[15932.451694] sd 10:0:0:0: [sdb] Write Protect is off
[15932.451704] sd 10:0:0:0: [sdb] Mode Sense: 4f 00 00 00
[15932.453308] sd 10:0:0:0: [sdb] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA
[15932.470160]  sdb: sdb1 sdb2 sdb3 sdb4
[15932.472853] sd 10:0:0:0: [sdb] Attached SCSI removable disk
[15933.102257] EXT4-fs (sdb3): mounted filesystem with ordered data mode. Opts: (null)
[15933.128433] EXT4-fs (sdb2): mounted filesystem with ordered data mode. Opts: (null)
u1604btrfs@u1604btrfs:~$ 












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