error: couldn't find the ModemManager process in the bus

[João M. S. Silva]

Hi,

I started getting this error probably some months ago:

   error: couldn't find the ModemManager process in the bus

I rarely use this modem, so that's why I only noticed it about one month 
ago, but the problem may be due to an update to ModemManager before that.

I reinserted the device and I see this:

[  620.770670] usb 1-8.1: new full-speed USB device number 7 using ehci-pci
[  620.880497] usb 1-8.1: New USB device found, idVendor=0685, 
idProduct=7000
[  620.880514] usb 1-8.1: New USB device strings: Mfr=1, Product=2, 
SerialNumber=3
[  620.880527] usb 1-8.1: Product:  HSDPA USB Modem
[  620.880538] usb 1-8.1: Manufacturer:  HSDPA USB Modem
[  620.880548] usb 1-8.1: SerialNumber: Data Interface
[  620.881953] usb-storage 1-8.1:1.0: USB Mass Storage device detected
[  620.882912] scsi47 : usb-storage 1-8.1:1.0
[  621.886246] scsi 47:0:0:0: CD-ROM            HSDPA    CDROM Storage 
   2.31 PQ: 0 ANSI: 2
[  621.887897] scsi 47:0:0:1: Direct-Access     HSDPA    MMC Storage 
   2.31 PQ: 0 ANSI: 2
[  621.896176] sr0: scsi-1 drive
[  621.896596] sr 47:0:0:0: Attached scsi CD-ROM sr0
[  621.896907] sr 47:0:0:0: Attached scsi generic sg1 type 5
[  621.897568] sd 47:0:0:1: Attached scsi generic sg2 type 0
[  621.909022] sd 47:0:0:1: [sdb] Attached SCSI removable disk
[  624.742487] usb 1-8.1: USB disconnect, device number 7
[  624.745693] scsi 47:0:0:0: rejecting I/O to offline device
[  624.745818] scsi 47:0:0:0: killing request
[  624.752847] systemd-udevd[1891]: Failed to apply ACL on /dev/sr0: No 
such file or directory
[  625.986734] usb 1-8.1: new full-speed USB device number 8 using ehci-pci
[  626.099074] usb 1-8.1: New USB device found, idVendor=12d1, 
idProduct=1001
[  626.099091] usb 1-8.1: New USB device strings: Mfr=1, Product=2, 
SerialNumber=3
[  626.099104] usb 1-8.1: Product:  HSDPA USB Modem
[  626.099115] usb 1-8.1: Manufacturer:  HSDPA USB Modem
[  626.099125] usb 1-8.1: SerialNumber: Data Interface
[  626.101050] usb-storage 1-8.1:1.0: USB Mass Storage device detected
[  626.101404] option 1-8.1:1.0: GSM modem (1-port) converter detected
[  626.101814] usb 1-8.1: GSM modem (1-port) converter now attached to 
ttyUSB0
[  626.102911] usb-storage 1-8.1:1.1: USB Mass Storage device detected
[  626.103295] option 1-8.1:1.1: GSM modem (1-port) converter detected
[  626.103733] usb 1-8.1: GSM modem (1-port) converter now attached to 
ttyUSB1
[  626.104326] usb-storage 1-8.1:1.2: USB Mass Storage device detected
[  626.104627] option 1-8.1:1.2: GSM modem (1-port) converter detected
[  626.105001] usb 1-8.1: GSM modem (1-port) converter now attached to 
ttyUSB2
[  626.105554] usb-storage 1-8.1:1.3: USB Mass Storage device detected
[  626.105836] option 1-8.1:1.3: GSM modem (1-port) converter detected
[  626.106191] usb 1-8.1: GSM modem (1-port) converter now attached to 
ttyUSB3
[  626.106928] usb-storage 1-8.1:1.4: USB Mass Storage device detected
[  626.108308] scsi52 : usb-storage 1-8.1:1.4
[  626.174722] init: usb-modeswitch-upstart main process (1934) 
terminated with status 1
[  627.109884] scsi 52:0:0:0: CD-ROM            HSDPA    CDROM Storage 
   2.31 PQ: 0 ANSI: 2
[  627.111895] scsi 52:0:0:1: Direct-Access     HSDPA    MMC Storage 
   2.31 PQ: 0 ANSI: 2
[  627.118294] sr0: scsi-1 drive
[  627.118879] sr 52:0:0:0: Attached scsi CD-ROM sr0
[  627.119269] sr 52:0:0:0: Attached scsi generic sg1 type 5
[  627.120340] sd 52:0:0:1: Attached scsi generic sg2 type 0
[  627.131171] sd 52:0:0:1: [sdb] Attached SCSI removable disk
[  629.387879] sr0: CDROM (ioctl) error, command: Xpwrite, Read disk 
info 51 00 00 00 00 00 00 00 02 00
[  629.388090] sr: Sense Key : Hardware Error [current]
[  629.388096] sr: Add. Sense: No additional sense information

Any help?

Thanks.

-- 
João M. S. Silva