[Ubuntu-zh] 升级2.38内核后，无法识别自己的MP4？

[Taglete Taglete]

刚刚前几天从10.10升级到11.04然后安装Gnome 3，问题就来了一堆....
现在如果是切换到2.35时，识别的很正常...
[taglete grub$] lsusb
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 002: ID 071b:3203 Domain Technologies, Inc. Rockchip Media
Player（要的就是这个MP4）
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
在2.38下好像提示显示一下连接上，然后就断开了；在控制台下显示为
[174.636036] usb 1-5 :device not accepting address 3 , error -71
[174.692268] sd 5:0:0:0: [sdb] No Caching mode page present
[174.692468] sd 5:0:0:0: [sdb] Assuming drive cache :write through
下面是完整的dmesg的信息：
[  173.498706] sd 5:0:0:0: Attached scsi generic sg2 type 0
[  173.500977] sd 5:0:0:1: Attached scsi generic sg3 type 0
[  173.501902] sd 5:0:0:0: [sdb] 7837696 512-byte logical blocks: (4.01
GB/3.73 GiB)
[  173.501913] sd 5:0:0:0: [sdb] Assuming Write Enabled
[  173.612065] usb 1-5: reset high speed USB device using ehci_hcd and
address 3
[  173.860063] usb 1-5: reset high speed USB device using ehci_hcd and
address 3
[  174.108051] usb 1-5: reset high speed USB device using ehci_hcd and
address 3
[  174.636036] usb 1-5: device not accepting address 3, error -71
[  174.692092] usb 1-5: USB disconnect, address 3
[  174.692268] sd 5:0:0:0: [sdb] No Caching mode page present
[  174.692468] sd 5:0:0:0: [sdb] Assuming drive cache: write through
[  174.692967] sd 5:0:0:1: [sdc] Attached SCSI removable disk
[  174.694221] sd 5:0:0:0: [sdb] Attached SCSI removable disk
[taglete ~$] lsusb
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
内核版本：2.6.38-8-generic
有人知道这个问题的原因吗？
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