Sony PRS-T1 reader doesn't appear when plugged in with USB

[Steinar Bang]

Calibre version: 0.9.40
Operating system: debian testing ("jessie")

When I plug my Sony PRS-T1 with the USB cable, and click "Data transfer mode" in the reader, it no longer appears as a device in calibre.

[Steinar Bang (sb-dod)]

Here is the output from "debug device dection":

calibre 0.9.40 isfrozen: True is64bit: False
Linux-3.9-1-686-pae-i686-with-debian-jessie-sid Linux ('32bit', 'ELF')
('Linux', '3.9-1-686-pae', '#1 SMP Debian 3.9.8-1')
Python 2.7.5
Linux: ('debian', 'jessie/sid', '')
USB devices on system:
[['0x46d', '0xc00e', '0x1110', u'Logitech', u'USB-PS/2 Optical Mouse', u''],
 ['0x54c',
  '0x5c2',
  '0x226',
  u'Sony',
  u'Sony Digital Book Reader',
  u'148427381052486']]

No disabled plugins
Looking for devices of type: MTP_DEVICE
No MTP devices connected to system

Looking for devices...
 USBDevice(busnum=4, devnum=8, vendor_id=0x054c, product_id=0x05c2, bcd=0x0226, manufacturer=Sony, product=Sony Digital Book Reader, serial=148427381052486)
 PRS-T1: Appears to be in non data mode or was ejected, ignoring

Devices possibly connected: None

(Note: I am just now looking at the display of the PRS-T1 which says "Data Transfer Mode")

[Kovid Goyal (kovid)]

calibre cannot find any mounted, writable partitions for your device. Either mount
them yourself before starting calibre or fix UDisks on your system.

 status invalid

[anarcat (anarcat)]

Note that this is a regression from wheezy. This used to work fine last week, and since I upgraded to jessie (yesterday), this stopped working.

Can you expand on what you mean by "fix udisks"?

Running udisks --dump seems to fix the problem, but I don't understand why that's necessary...

[Kovid Goyal (kovid)]

calibre uses udisks to mount unmounted devices. Since it cannot find mounted partitions belonging to the T1, udisks mounting failed. Which implies that udisks is broken on your system. SO you either need to mount manually before starting calibre, or fix udisks. I have no idea how you'd go about fixing it, since that t4ends to be distro and udisks version specific.

[Mario (cancarnemima)]

i am also having an issue with prs-t1 reader.
the problem is that when i enter fdisk -l , reader's partitions do not appear on the list at all.