connexion USB galaxy s2 fail

J´ai acheté mon S2 début juillet, l´USB à marcher quelques jours et depuis plus moyen de le faire détecter. J´ai la version:
- Android 2.3.3
- Kernel 2.6.35.7-I9100XWKE2-CL187606
- baseband: I9100 XXKDJ
- Build: Gingerbread.XWKE2
J´ai testé sur Linux Mint 11 (Katya), sur une machine virtuelle Windows XP (SP3) et sur un Windows 7 c´est pareil.
Sous linux voici les infos que j´ai:
$ dmesg | tail
[96901.306556] usb 2-1.5: new full speed USB device using ehci_hcd and address 28
[96901.386552] usb 2-1.5: device descriptor read/64, error -32
[96901.576484] usb 2-1.5: device descriptor read/64, error -32
[96901.766405] usb 2-1.5: new full speed USB device using ehci_hcd and address 29
[96901.846403] usb 2-1.5: device descriptor read/64, error -32
[96902.036245] usb 2-1.5: device descriptor read/64, error -32
[96902.226166] usb 2-1.5: new full speed USB device using ehci_hcd and address 30
[96902.645740] usb 2-1.5: device not accepting address 30, error -32
[96902.725977] usb 2-1.5: new full speed USB device using ehci_hcd and address 31
[96903.145462] usb 2-1.5: device not accepting address 31, error -32
[96903.145781] hub 2-1:1.0: unable to enumerate USB device on port 5

$ lsb_release -a
LSB Version:    core-2.0-amd64:core-2.0-noarch:core-3.0-amd64:core-3.0-noarch:core-3.1-amd64:core-3.1-noarch:core-3.2-amd64:core-3.2-noarch:core-4.0-amd64:core-4.0-noarch
Distributor ID: LinuxMint
Description:    Linux Mint 11 Katya
Release:    11
Codename:   katya

$ uname -a
Linux 2.6.38-10-generic #46-Ubuntu SMP Tue Jun 28 15:07:17 UTC 2011 x86_64 x86_64 x86_64 GNU/Linux