Ubuntu 9.04 - kernel 2.6.28-8.8 When I connect my new MP5-player to USB, it is not found. lsusb can't see it. dmesg show some errors and try to re-connect (see snippet) but no luck. But then - If I attach it to my Win XP computer, where it is found, and then back to the Ubuntu computer, then it is found and auto-mount without problems! But if I turn off the player and connect one more time, then again Ubuntu can not find it. After been connectet to windows, lsusb say: Bus 007 Device 012: ID 0525:a4a5 Netchip Technology, Inc. Linux-USB File Storage Gadget Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 2.00 bDeviceClass 0 (Defined at Interface level) bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 64 idVendor 0x0525 Netchip Technology, Inc. idProduct 0xa4a5 Linux-USB File Storage Gadget bcdDevice 3.20 iManufacturer 1 323820474077 iProduct 2 File-backedStorag iSerial 3 323820474077 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 32 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 4 bmAttributes 0x80 (Bus Powered) MaxPower 500mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 2 bInterfaceClass 8 Mass Storage bInterfaceSubClass 6 SCSI bInterfaceProtocol 80 Bulk (Zip) iInterface 5 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x01 EP 1 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 0 Device Qualifier (for other device speed): bLength 10 bDescriptorType 6 bcdUSB 2.00 bDeviceClass 0 (Defined at Interface level) bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 64 bNumConfigurations 1 can't get debug descriptor: Connection timed out cannot read device status, Connection timed out (110) The player has 8GB internal memory and a 512 MB sd-card. dmesg: First snippet is before it is found, second snippet is after is has been connectet to Windows XP. If you need more info, please let me know. [ 444.192221] usb 7-1: new high speed USB device using ehci_hcd and address 9 [ 444.853445] usb 7-1: configuration #1 chosen from 1 choice [ 454.852943] scsi9 : SCSI emulation for USB Mass Storage devices [ 454.853993] usb-storage: device found at 9 [ 454.853999] usb-storage: waiting for device to settle before scanning [ 459.852887] usb-storage: device scan complete [ 459.853741] scsi 9:0:0:0: Direct-Access Ingenic JzSOC USB-DISK 0100 PQ: 0 ANSI: 0 [ 459.854306] scsi 9:0:0:1: Direct-Access Ingenic JzSOC USB-DISK 0100 PQ: 0 ANSI: 0 [ 459.857513] sd 9:0:0:0: [sdb] 16105472 512-byte hardware sectors: (8.24 GB/7.67 GiB) [ 459.858126] sd 9:0:0:0: [sdb] Write Protect is off [ 459.858132] sd 9:0:0:0: [sdb] Mode Sense: 00 06 00 00 [ 459.858137] sd 9:0:0:0: [sdb] Assuming drive cache: write through [ 459.868084] sd 9:0:0:0: [sdb] 16105472 512-byte hardware sectors: (8.24 GB/7.67 GiB) [ 459.868633] sd 9:0:0:0: [sdb] Write Protect is off [ 459.868640] sd 9:0:0:0: [sdb] Mode Sense: 00 06 00 00 [ 459.868646] sd 9:0:0:0: [sdb] Assuming drive cache: write through [ 459.868657] sdb:<6>usb 7-1: USB disconnect, address 9 [ 459.996215] sd 9:0:0:0: [sdb] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK,SUGGEST_OK [ 459.996229] end_request: I/O error, dev sdb, sector 0 [ 459.996239] __ratelimit: 5 callbacks suppressed [ 459.996246] Buffer I/O error on device sdb, logical block 0 [ 459.996359] sd 9:0:0:0: [sdb] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK,SUGGEST_OK [ 459.996370] end_request: I/O error, dev sdb, sector 0 [ 459.996377] Buffer I/O error on device sdb, logical block 0 [ 459.996430] sd 9:0:0:0: [sdb] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK,SUGGEST_OK [ 459.996439] end_request: I/O error, dev sdb, sector 0 [ 459.996445] Buffer I/O error on device sdb, logical block 0 [ 459.996484] sd 9:0:0:0: [sdb] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK,SUGGEST_OK [ 459.996493] end_request: I/O error, dev sdb, sector 0 [ 459.996499] Buffer I/O error on device sdb, logical block 0 [ 459.996534] sd 9:0:0:0: [sdb] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK,SUGGEST_OK [ 459.996543] end_request: I/O error, dev sdb, sector 0 [ 459.996549] Buffer I/O error on device sdb, logical block 0 [ 459.996566] ldm_validate_partition_table(): Disk read failed. [ 459.996591] sd 9:0:0:0: [sdb] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK,SUGGEST_OK [ 459.996600] end_request: I/O error, dev sdb, sector 0 [ 459.996606] Buffer I/O error on device sdb, logical block 0 [ 459.996641] sd 9:0:0:0: [sdb] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK,SUGGEST_OK [ 459.996650] end_request: I/O error, dev sdb, sector 0 [ 459.996656] Buffer I/O error on device sdb, logical block 0 [ 459.996691] sd 9:0:0:0: [sdb] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK,SUGGEST_OK [ 459.996700] end_request: I/O error, dev sdb, sector 0 [ 459.996706] Buffer I/O error on device sdb, logical block 0 [ 459.996740] sd 9:0:0:0: [sdb] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK,SUGGEST_OK [ 459.996748] end_request: I/O error, dev sdb, sector 0 [ 459.996755] Buffer I/O error on device sdb, logical block 0 [ 459.996771] Dev sdb: unable to read RDB block 0 [ 459.996795] sd 9:0:0:0: [sdb] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK,SUGGEST_OK [ 459.996804] end_request: I/O error, dev sdb, sector 0 [ 459.996810] Buffer I/O error on device sdb, logical block 0 [ 459.996844] sd 9:0:0:0: [sdb] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK,SUGGEST_OK [ 459.996853] end_request: I/O error, dev sdb, sector 0 [ 459.996901] sd 9:0:0:0: [sdb] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK,SUGGEST_OK [ 459.996911] end_request: I/O error, dev sdb, sector 24 [ 459.996944] sd 9:0:0:0: [sdb] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK,SUGGEST_OK [ 459.996954] end_request: I/O error, dev sdb, sector 24 [ 459.996989] sd 9:0:0:0: [sdb] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK,SUGGEST_OK [ 459.996998] end_request: I/O error, dev sdb, sector 0 [ 459.997041] sd 9:0:0:0: [sdb] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK,SUGGEST_OK [ 459.997050] end_request: I/O error, dev sdb, sector 0 [ 459.997069] unable to read partition table [ 459.998090] sd 9:0:0:0: [sdb] Attached SCSI removable disk [ 459.998749] sd 9:0:0:0: Attached scsi generic sg2 type 0 [ 459.999984] sd 9:0:0:1: [sdc] READ CAPACITY failed [ 459.999987] sd 9:0:0:1: [sdc] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK,SUGGEST_OK [ 460.000023] sd 9:0:0:1: [sdc] Sense not available. [ 460.000087] sd 9:0:0:1: [sdc] Write Protect is off [ 460.000095] sd 9:0:0:1: [sdc] Mode Sense: 00 00 00 00 [ 460.000102] sd 9:0:0:1: [sdc] Assuming drive cache: write through [ 460.000268] sd 9:0:0:1: [sdc] Attached SCSI removable disk [ 460.000369] sd 9:0:0:1: Attached scsi generic sg3 type 0 [ 460.007942] sd 9:0:0:0: [sdb] READ CAPACITY failed [ 460.007950] sd 9:0:0:0: [sdb] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK,SUGGEST_OK [ 460.007963] sd 9:0:0:0: [sdb] Sense not available. [ 460.007994] sd 9:0:0:0: [sdb] Write Protect is off [ 460.008024] sd 9:0:0:0: [sdb] Mode Sense: 00 00 00 00 [ 460.008032] sd 9:0:0:0: [sdb] Assuming drive cache: write through [ 460.008141] sd 9:0:0:0: [sdb] READ CAPACITY failed [ 460.008148] sd 9:0:0:0: [sdb] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK,SUGGEST_OK [ 460.008158] sd 9:0:0:0: [sdb] Sense not available. [ 460.008188] sd 9:0:0:0: [sdb] Write Protect is off [ 460.008195] sd 9:0:0:0: [sdb] Mode Sense: 00 00 00 00 [ 460.008202] sd 9:0:0:0: [sdb] Assuming drive cache: write through [ 468.320367] usb 7-1: new high speed USB device using ehci_hcd and address 10 [ 468.681924] usb 7-1: configuration #1 chosen from 1 choice [ 478.697102] scsi10 : SCSI emulation for USB Mass Storage devices [ 478.697597] usb-storage: device found at 10 [ 478.697602] usb-storage: waiting for device to settle before scanning [ 483.696451] usb-storage: device scan complete [ 483.696975] scsi 10:0:0:0: Direct-Access Ingenic JzSOC USB-DISK 0100 PQ: 0 ANSI: 0 [ 483.698351] scsi 10:0:0:1: Direct-Access Ingenic JzSOC USB-DISK 0100 PQ: 0 ANSI: 0 [ 483.700660] sd 10:0:0:0: [sdb] 16105472 512-byte hardware sectors: (8.24 GB/7.67 GiB) [ 483.702383] sd 10:0:0:0: [sdb] Write Protect is off [ 483.702390] sd 10:0:0:0: [sdb] Mode Sense: 00 06 00 00 [ 483.702397] sd 10:0:0:0: [sdb] Assuming drive cache: write through [ 483.704006] sd 10:0:0:0: [sdb] 16105472 512-byte hardware sectors: (8.24 GB/7.67 GiB) [ 483.713781] sd 10:0:0:0: [sdb] Write Protect is off [ 483.713789] sd 10:0:0:0: [sdb] Mode Sense: 00 06 00 00 [ 483.713796] sd 10:0:0:0: [sdb] Assuming drive cache: write through [ 483.713806] sdb:<6>usb 7-1: USB disconnect, address 10 [ 483.856217] sd 10:0:0:0: [sdb] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK,SUGGEST_OK [ 483.856231] end_request: I/O error, dev sdb, sector 0 [ 483.856241] __ratelimit: 5 callbacks suppressed [ 483.856247] Buffer I/O error on device sdb, logical block 0 [ 483.856316] sd 10:0:0:0: [sdb] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK,SUGGEST_OK [ 483.856325] end_request: I/O error, dev sdb, sector 0 [ 483.856332] Buffer I/O error on device sdb, logical block 0 [ 483.856378] sd 10:0:0:0: [sdb] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK,SUGGEST_OK [ 483.856387] end_request: I/O error, dev sdb, sector 0 [ 483.856394] Buffer I/O error on device sdb, logical block 0 [ 483.856432] sd 10:0:0:0: [sdb] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK,SUGGEST_OK [ 483.856441] end_request: I/O error, dev sdb, sector 0 [ 483.856447] Buffer I/O error on device sdb, logical block 0 [ 483.856482] sd 10:0:0:0: [sdb] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK,SUGGEST_OK [ 483.856491] end_request: I/O error, dev sdb, sector 0 [ 483.856497] Buffer I/O error on device sdb, logical block 0 [ 483.856514] ldm_validate_partition_table(): Disk read failed. [ 483.856539] sd 10:0:0:0: [sdb] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK,SUGGEST_OK [ 483.856549] end_request: I/O error, dev sdb, sector 0 [ 483.856555] Buffer I/O error on device sdb, logical block 0 [ 483.856589] sd 10:0:0:0: [sdb] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK,SUGGEST_OK [ 483.856599] end_request: I/O error, dev sdb, sector 0 [ 483.856605] Buffer I/O error on device sdb, logical block 0 [ 483.856640] sd 10:0:0:0: [sdb] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK,SUGGEST_OK [ 483.856649] end_request: I/O error, dev sdb, sector 0 [ 483.856655] Buffer I/O error on device sdb, logical block 0 [ 483.856691] sd 10:0:0:0: [sdb] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK,SUGGEST_OK [ 483.856700] end_request: I/O error, dev sdb, sector 0 [ 483.856706] Buffer I/O error on device sdb, logical block 0 [ 483.856723] Dev sdb: unable to read RDB block 0 [ 483.856747] sd 10:0:0:0: [sdb] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK,SUGGEST_OK [ 483.856756] end_request: I/O error, dev sdb, sector 0 [ 483.856762] Buffer I/O error on device sdb, logical block 0 [ 483.856797] sd 10:0:0:0: [sdb] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK,SUGGEST_OK [ 483.856806] end_request: I/O error, dev sdb, sector 0 [ 483.856855] sd 10:0:0:0: [sdb] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK,SUGGEST_OK [ 483.856865] end_request: I/O error, dev sdb, sector 24 [ 483.856898] sd 10:0:0:0: [sdb] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK,SUGGEST_OK [ 483.856908] end_request: I/O error, dev sdb, sector 24 [ 483.856943] sd 10:0:0:0: [sdb] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK,SUGGEST_OK [ 483.856952] end_request: I/O error, dev sdb, sector 0 [ 483.856987] sd 10:0:0:0: [sdb] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK,SUGGEST_OK [ 483.856996] end_request: I/O error, dev sdb, sector 0 [ 483.860067] unable to read partition table [ 483.860295] sd 10:0:0:0: [sdb] Attached SCSI removable disk [ 483.860432] sd 10:0:0:0: Attached scsi generic sg2 type 0 [ 483.860671] sd 10:0:0:1: [sdc] READ CAPACITY failed [ 483.860678] sd 10:0:0:1: [sdc] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK,SUGGEST_OK [ 483.860689] sd 10:0:0:1: [sdc] Sense not available. [ 483.860722] sd 10:0:0:1: [sdc] Write Protect is off [ 483.860729] sd 10:0:0:1: [sdc] Mode Sense: 00 00 00 00 [ 483.860737] sd 10:0:0:1: [sdc] Assuming drive cache: write through [ 483.860894] sd 10:0:0:1: [sdc] Attached SCSI removable disk [ 483.860991] sd 10:0:0:1: Attached scsi generic sg3 type 0 [ 483.868591] sd 10:0:0:0: [sdb] READ CAPACITY failed [ 483.868599] sd 10:0:0:0: [sdb] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK,SUGGEST_OK [ 483.868612] sd 10:0:0:0: [sdb] Sense not available. [ 483.868643] sd 10:0:0:0: [sdb] Write Protect is off [ 483.868651] sd 10:0:0:0: [sdb] Mode Sense: 00 00 00 00 [ 483.868659] sd 10:0:0:0: [sdb] Assuming drive cache: write through [ 483.868768] sd 10:0:0:0: [sdb] READ CAPACITY failed [ 483.868775] sd 10:0:0:0: [sdb] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK,SUGGEST_OK [ 483.868785] sd 10:0:0:0: [sdb] Sense not available. [ 483.868815] sd 10:0:0:0: [sdb] Write Protect is off [ 483.868822] sd 10:0:0:0: [sdb] Mode Sense: 00 00 00 00 [ 483.868828] sd 10:0:0:0: [sdb] Assuming drive cache: write through Now it has been connectet to windows XP: [ 492.180338] usb 7-1: new high speed USB device using ehci_hcd and address 11 [ 492.545210] usb 7-1: configuration #1 chosen from 1 choice [ 500.303722] scsi11 : SCSI emulation for USB Mass Storage devices [ 500.303938] usb-storage: device found at 11 [ 500.303943] usb-storage: waiting for device to settle before scanning [ 500.304654] usb 7-1: USB disconnect, address 11 [ 591.012198] usb 7-1: new high speed USB device using ehci_hcd and address 12 [ 591.373211] usb 7-1: configuration #1 chosen from 1 choice [ 601.376154] scsi12 : SCSI emulation for USB Mass Storage devices [ 601.376604] usb-storage: device found at 12 [ 601.376609] usb-storage: waiting for device to settle before scanning [ 606.372663] usb-storage: device scan complete [ 606.373434] scsi 12:0:0:0: Direct-Access Ingenic JzSOC USB-DISK 0100 PQ: 0 ANSI: 0 [ 606.373975] scsi 12:0:0:1: Direct-Access Ingenic JzSOC USB-DISK 0100 PQ: 0 ANSI: 0 [ 606.376821] sd 12:0:0:0: [sdb] 16105472 512-byte hardware sectors: (8.24 GB/7.67 GiB) [ 606.377426] sd 12:0:0:0: [sdb] Write Protect is off [ 606.377434] sd 12:0:0:0: [sdb] Mode Sense: 00 06 00 00 [ 606.377442] sd 12:0:0:0: [sdb] Assuming drive cache: write through [ 606.378781] sd 12:0:0:0: [sdb] 16105472 512-byte hardware sectors: (8.24 GB/7.67 GiB) [ 606.379776] sd 12:0:0:0: [sdb] Write Protect is off [ 606.379783] sd 12:0:0:0: [sdb] Mode Sense: 00 06 00 00 [ 606.379789] sd 12:0:0:0: [sdb] Assuming drive cache: write through [ 606.379797] sdb: [ 606.382281] sd 12:0:0:0: [sdb] Attached SCSI removable disk [ 606.382413] sd 12:0:0:0: Attached scsi generic sg2 type 0 [ 606.383402] sd 12:0:0:1: [sdc] 990976 512-byte hardware sectors: (507 MB/483 MiB) [ 606.383893] sd 12:0:0:1: [sdc] Write Protect is off [ 606.383899] sd 12:0:0:1: [sdc] Mode Sense: 00 06 00 00 [ 606.383905] sd 12:0:0:1: [sdc] Assuming drive cache: write through [ 606.387862] sd 12:0:0:1: [sdc] 990976 512-byte hardware sectors: (507 MB/483 MiB) [ 606.389451] sd 12:0:0:1: [sdc] Write Protect is off [ 606.389459] sd 12:0:0:1: [sdc] Mode Sense: 00 06 00 00 [ 606.389465] sd 12:0:0:1: [sdc] Assuming drive cache: write through [ 606.389474] sdc: [ 606.393405] sd 12:0:0:1: [sdc] Attached SCSI removable disk [ 606.393526] sd 12:0:0:1: Attached scsi generic sg3 type 0 [ 609.997352] FAT: Invalid FSINFO signature: 0x41615252, 0x00000000 (sector = 1) [ 615.005193] FAT: Invalid FSINFO signature: 0x41615252, 0x00000000 (sector = 1) /Thomas Jensen