Linux + Calibre + Boyue T62D + MTP = Problems... for me

JNT · 08-14-2016, 02:22 PM

I am new to Linux. Used to use Windows.

I have 2 Linux set-ups now: Ubuntu Gnome 16.04 LTS and Zorin OS11 (based on Ubuntu 15 if I understand correctly). Both these behave the same way in this case.

I have a Boyue T62D (running the Energy Sistem firmware)
When I have the "USB Connect Mode" set to "MTP" (Under Settings > User settings), I experience exactly the issue mentioned here: https://www.mobileread.com/forums/sho...d.php?t=271220 (Calibre 2.51.0 triggers MTP failure with particular device)
(The MTP device mounts OK when plugged into the USB port, and I can see and browse the contents, but as soon as I start Calibre, then it seems to unmount -> try to re-mount -> unmount -> try to re-mount...etc. until I close Calibre or unplug the device.)

When I set "USB Connect Mode" set to "Mass Storage", everything works as expected.

Under Windows, both settings work without problems.

Other MTP devices (Nexus 7 and Samsung phone) works correctly in MTP mode.

I suspect it is a Ubuntu<>Calibre<>T62D issue, but am not sure where to start looking for a solution... Any advice or pointers would be appreciated.

theducks · 08-14-2016, 03:02 PM

2.51 is OLD
Distros rarly keep up with the Calibr release frequency

Uninstall that (the Library and settings remain)
Use the Commandline on the Calibre Linux download page (I found I always have to use it for bi-weekly updates)

gbm · 08-14-2016, 04:53 PM

Quote:

Originally Posted by JNT

I am new to Linux. Used to use Windows.

I have 2 Linux set-ups now: Ubuntu Gnome 16.04 LTS and Zorin OS11 (based on Ubuntu 15 if I understand correctly). Both these behave the same way in this case.

I have a Boyue T62D (running the Energy Sistem firmware)
When I have the "USB Connect Mode" set to "MTP" (Under Settings > User settings), I experience exactly the issue mentioned here: https://www.mobileread.com/forums/sho...d.php?t=271220 (Calibre 2.51.0 triggers MTP failure with particular device)
(The MTP device mounts OK when plugged into the USB port, and I can see and browse the contents, but as soon as I start Calibre, then it seems to unmount -> try to re-mount -> unmount -> try to re-mount...etc. until I close Calibre or unplug the device.)

When I set "USB Connect Mode" set to "Mass Storage", everything works as expected.

Under Windows, both settings work without problems.

Other MTP devices (Nexus 7 and Samsung phone) works correctly in MTP mode.

I suspect it is a Ubuntu<>Calibre<>T62D issue, but am not sure where to start looking for a solution... Any advice or pointers would be appreciated.

If you have or can get google play then Calibre Companion is highly recommend for Android Devices.

bernie

kovidgoyal · 08-14-2016, 11:05 PM

Figure out what is trying to auto-connect to the device in your desktop environment and disable it.

eschwartz · 08-15-2016, 01:32 AM

Because AFAIK the linux MTP implementation can only work with one application at a time. And if it is being handled by your DE's File Browser as a virtual filesystem, calibre does not have the necessary control to interface with it.

JNT · 08-15-2016, 09:36 AM

Thanks for the quick response :-)

As a Linux novice I still have a huge disadvantage ...

Quote:

Originally Posted by kovidgoyal

Figure out what is trying to auto-connect to the device in your desktop environment

Is there an easy way to find this out in Linux?

And

Quote:

Originally Posted by eschwartz

... as a virtual filesystem,

How would I confirm this?

gbm · 08-15-2016, 11:22 AM

Make sure you have not told calibre not to mange your MTP device. See screenshot should not be any boxes checked.

bernie

JNT · 08-15-2016, 12:48 PM

Quote:

Originally Posted by gbm

Make sure you have not told calibre not to mange your MTP device. See screenshot should not be any boxes checked.

bernie

OK, thanks. Checked, and that tab has only my Nexus 7 listed, but not checked.

Also, for the record (I forgot to mention it in my 1st post) on Ubuntu I have Calibre 2.59 installed and on Zorin OS11 I have Calibre 2.64 installed. Both are behaving the same.

JNT · 08-15-2016, 01:18 PM

Quote:

Originally Posted by JNT

Is there an easy way to find this out in Linux?

OK, I think I have found the solution to the auto-mounting:
http://askubuntu.com/questions/89244...ss-preferences

Following this and un-checking the auto-mount box, the T62D connects properly with Calibre.

It does however stop everything from auto-mounting. It would be nice to be able to selectively stop only the T62D from auto-mounting.

This is however not a Calibre problem, so I will go look for a solution elsewhere. Thanks for all the info and advice!

gbm · 08-15-2016, 01:34 PM

Quote:

Originally Posted by JNT

OK, I think I have found the solution to the auto-mounting:
http://askubuntu.com/questions/89244...ss-preferences

It does however stop everything from auto-mounting. It would be nice to be able to selectively stop only the T62D from auto-mounting.

This is however not a Calibre problem, so I will go look for a solution elsewhere. Thanks for all the info and advice!

Try this.
http://askubuntu.com/questions/19152...ter-auto-mount

Make sure that your media players are set to not launch upon detecting MTP devices.

bernie

gbm · 08-15-2016, 02:05 PM

I say try using Calibre Companion it works on the Boyue T62D see this thread.

The wireless interface is way faster than using the usb.

bernie

eschwartz · 08-15-2016, 06:40 PM

Quote:

Originally Posted by JNT

Thanks for the quick response :-)

As a Linux novice I still have a huge disadvantage ...

Is there an easy way to find this out in Linux?

And

How would I confirm this?

As you discovered, that basically means telling Nautilus (for the Gnome desktop) not to auto-mount it as an attached device.
It isn't really, it is a networked device using the MTP protocol, not a USB device using USBMS. But the Gnome Virtual Filesystems (GVfs) implementation fakes it, which is how it shows up in Nautilus.

I am unaware of any way to tell Nautilus/GVfs to ignore specific MTP devices.

JNT · 08-16-2016, 06:44 AM

Quote:

Originally Posted by eschwartz

As you discovered, that basically means telling Nautilus (for the Gnome desktop) not to auto-mount it as an attached device.
It isn't really, it is a networked device using the MTP protocol, not a USB device using USBMS. But the Gnome Virtual Filesystems (GVfs) implementation fakes it, which is how it shows up in Nautilus.

Thanks for this information. It really helps me understanding things better.

Quote:

Originally Posted by eschwartz

I am unaware of any way to tell Nautilus/GVfs to ignore specific MTP devices.

This is bad news, but it does make me feel better, since I could not find anything about this and I thought it was due to my lack of Linux knowledge (not knowing the correct search terms).

eschwartz · 08-16-2016, 09:23 AM

Happy to help.

I like providing infodumps as an "extra", because some people do appreciate it -- it is always nice to know when that habit pays off.

08-14-2016, 02:22 PM	#1
JNT Connoisseur Posts: 53 Karma: 18986 Join Date: May 2012 Location: Sweden Device: KT / K4NT / T62D / T68	Linux + Calibre + Boyue T62D + MTP = Problems... for me I am new to Linux. Used to use Windows. I have 2 Linux set-ups now: Ubuntu Gnome 16.04 LTS and Zorin OS11 (based on Ubuntu 15 if I understand correctly). Both these behave the same way in this case. I have a Boyue T62D (running the Energy Sistem firmware) When I have the "USB Connect Mode" set to "MTP" (Under Settings > User settings), I experience exactly the issue mentioned here: https://www.mobileread.com/forums/sho...d.php?t=271220 (Calibre 2.51.0 triggers MTP failure with particular device) (The MTP device mounts OK when plugged into the USB port, and I can see and browse the contents, but as soon as I start Calibre, then it seems to unmount -> try to re-mount -> unmount -> try to re-mount...etc. until I close Calibre or unplug the device.) When I set "USB Connect Mode" set to "Mass Storage", everything works as expected. Under Windows, both settings work without problems. Other MTP devices (Nexus 7 and Samsung phone) works correctly in MTP mode. I suspect it is a Ubuntu<>Calibre<>T62D issue, but am not sure where to start looking for a solution... Any advice or pointers would be appreciated.

08-15-2016, 11:22 AM	#7
gbm Wizard Posts: 2,183 Karma: 8888888 Join Date: Jun 2010 Device: Kobo Clara HD,Hisence Sero 7 Pro RIP, Nook STR, jetbook lite	Make sure you have not told calibre not to mange your MTP device. See screenshot should not be any boxes checked. bernie Attached Thumbnails

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08-14-2016, 03:02 PM	#2
theducks Well trained by Cats Posts: 31,047 Karma: 60358908 Join Date: Aug 2009 Location: The Central Coast of California Device: Kobo Libra2,Kobo Aura2v1, K4NT(Fixed: New Bat.), Galaxy Tab A	2.51 is OLD Distros rarly keep up with the Calibr release frequency Uninstall that (the Library and settings remain) Use the Commandline on the Calibre Linux download page (I found I always have to use it for bi-weekly updates)

08-14-2016, 11:05 PM	#4
kovidgoyal creator of calibre Posts: 45,342 Karma: 27182818 Join Date: Oct 2006 Location: Mumbai, India Device: Various	Figure out what is trying to auto-connect to the device in your desktop environment and disable it.

08-15-2016, 01:32 AM	#5
eschwartz Ex-Helpdesk Junkie Posts: 19,421 Karma: 85400180 Join Date: Nov 2012 Location: The Beaten Path, USA, Roundworld, This Side of Infinity Device: Kindle Touch fw5.3.7 (Wifi only)	Because AFAIK the linux MTP implementation can only work with one application at a time. And if it is being handled by your DE's File Browser as a virtual filesystem, calibre does not have the necessary control to interface with it.

08-15-2016, 02:05 PM	#11
gbm Wizard Posts: 2,183 Karma: 8888888 Join Date: Jun 2010 Device: Kobo Clara HD,Hisence Sero 7 Pro RIP, Nook STR, jetbook lite	I say try using Calibre Companion it works on the Boyue T62D see this thread. The wireless interface is way faster than using the usb. bernie

08-16-2016, 09:23 AM	#14
eschwartz Ex-Helpdesk Junkie Posts: 19,421 Karma: 85400180 Join Date: Nov 2012 Location: The Beaten Path, USA, Roundworld, This Side of Infinity Device: Kindle Touch fw5.3.7 (Wifi only)	Happy to help. I like providing infodumps as an "extra", because some people do appreciate it -- it is always nice to know when that habit pays off.

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