[Kobo] Unknown title

fictions · 12-09-2018, 02:06 PM

Hi! I am new to Calibre and used it with my new Kobo Clara HD. Two books I sent, one in PDF and one in ePub, display their titles correctly in the library view but when I send them to the device the titles show up as 'Unknown'. I have tried searching the forums but couldn't find anything about this. Does anyone know why this is happening? I am sorry if this has been asked several times already and if this is the wrong forum to ask this question, I am not only a new Calibre user but also a new user of the forums

theducks · 12-09-2018, 03:27 PM

I just saw that with my new Aura2.
They are fine on the device

jackie_w · 12-09-2018, 04:26 PM

Have you configured your calibre Kobo driver (whichever one of KoboTouch or KoboTouchExtended you're currently using) to update metadata?

If you're using latest calibre 3.35, enable checkboxes on tab 'Metadata, on-device & advanced' for both:
- Update metadata on the device
- Update metadata on Book Details pages.

The other thing to be aware of for users new to Kobo is that transferring metadata is usually a 2-part process.

First connect to calibre: use send-to-device to transfer new books. Then safely disconnect and the Kobo will add new book entries in the Kobo database. A few metadata fields (author, title, comments, ...) will be populated either via extract from the book's internal files or from a metadata plugboard if you're using one.

Second (and subsequent) connect to calibre: the calibre driver will auto-magically update metadata in the Kobo database using your latest calibre metadata (author, title, series, publication date, etc ...)

The moral of the story: always do a second calibre connect before concluding that metadata isn't being transferred correctly.

davidfor · 12-09-2018, 06:16 PM

Quote:

Originally Posted by fictions

Hi! I am new to Calibre and used it with my new Kobo Clara HD. Two books I sent, one in PDF and one in ePub, display their titles correctly in the library view but when I send them to the device the titles show up as 'Unknown'. I have tried searching the forums but couldn't find anything about this. Does anyone know why this is happening? I am sorry if this has been asked several times already and if this is the wrong forum to ask this question, I am not only a new Calibre user but also a new user of the forums

Quote:

Originally Posted by theducks

I just saw that with my new Aura2.
They are fine on the device

Is this with calibre 3.35? I saw something like this while doing the recent changed, but, I thought I had fixed it. I'll have another look at it. But, a debug log from the connection should be useful.

To let me see what is happening, in the driver configuration, put the name of the errant book in the "Title to test when debugging" field on the third tab. It doesn't need to be the full title, just something that will match the book without matching to many others (i.e. don't use "the"). Then run calibre in debug mode (right-click the preferences button and select "Restart in debug mode"), let the device connection jobs run and then close calibre. Calibre will display the log. Then post or PM the complete log to me.

theducks · 12-09-2018, 07:03 PM

Quote:

Originally Posted by davidfor

Is this with calibre 3.35? I saw something like this while doing the recent changed, but, I thought I had fixed it. I'll have another look at it. But, a debug log from the connection should be useful.

To let me see what is happening, in the driver configuration, put the name of the errant book in the "Title to test when debugging" field on the third tab. It doesn't need to be the full title, just something that will match the book without matching to many others (i.e. don't use "the"). Then run calibre in debug mode (right-click the preferences button and select "Restart in debug mode"), let the device connection jobs run and then close calibre. Calibre will display the log. Then post or PM the complete log to me.

3.35 But it must have been cockpit error. I ran Kobo Utilities Update metadata on the 3rd connect.
I am new to Kobo, I expected it to just happen on the second connect

SapereAude · 12-10-2018, 09:20 AM

I am seeing this issue as well since latest update. On device view all titles are unknown, but titles are properly communicated to device and back. Kobo Aura 2.

fictions · 12-10-2018, 09:51 AM

Quote:

Originally Posted by theducks

I just saw that with my new Aura2.
They are fine on the device

The first time I had 'Unknown' on the device as well, but now it seems to display the right title.

Quote:

Originally Posted by jackie_w

Have you configured your calibre Kobo driver (whichever one of KoboTouch or KoboTouchExtended you're currently using) to update metadata?

If you're using latest calibre 3.35, enable checkboxes on tab 'Metadata, on-device & advanced' for both:
- Update metadata on the device
- Update metadata on Book Details pages.

The other thing to be aware of for users new to Kobo is that transferring metadata is usually a 2-part process.

First connect to calibre: use send-to-device to transfer new books. Then safely disconnect and the Kobo will add new book entries in the Kobo database. A few metadata fields (author, title, comments, ...) will be populated either via extract from the book's internal files or from a metadata plugboard if you're using one.

Second (and subsequent) connect to calibre: the calibre driver will auto-magically update metadata in the Kobo database using your latest calibre metadata (author, title, series, publication date, etc ...)

The moral of the story: always do a second calibre connect before concluding that metadata isn't being transferred correctly.

Thanks for the info, jackie_w! I did configure the KoboTouch driver to update metadata when I installed the new release yesterday. I didn't know a second connect was necessary, but that is what I did anyway, since I always try things out several times when things are not working. It still shows up as 'Unknown' on Calibre, but now displays the right title on the device at least.

Quote:

Originally Posted by davidfor

Is this with calibre 3.35? I saw something like this while doing the recent changed, but, I thought I had fixed it. I'll have another look at it. But, a debug log from the connection should be useful.

To let me see what is happening, in the driver configuration, put the name of the errant book in the "Title to test when debugging" field on the third tab. It doesn't need to be the full title, just something that will match the book without matching to many others (i.e. don't use "the"). Then run calibre in debug mode (right-click the preferences button and select "Restart in debug mode"), let the device connection jobs run and then close calibre. Calibre will display the log. Then post or PM the complete log to me.

Thanks davidfor, I just ran Calibre in debug mode and will PM you the log right now. It is with Calibre 3.35 after I updated the KoboTouch plugin (to be fair, I had not used Calibre very much before 3.35 so I don't know if the problem came with 3.35 or not).

alibre · 12-10-2018, 10:26 AM

I have the same problem with the title "unknown" and the size is 0.
I've send MP with the debug log to davidfor to help.
I've used Calibre 3.35 i KoboTouchExtended. Until now (calibre 3.35) it was working ok.
Thanks to davidfor.

davidfor · 12-10-2018, 10:15 PM

Quote:

Originally Posted by alibre

I have the same problem with the title "unknown" and the size is 0.
I've send MP with the debug log to davidfor to help.
I've used Calibre 3.35 i KoboTouchExtended. Until now (calibre 3.35) it was working ok.
Thanks to davidfor.

Thanks. I'll have a look at the logs as soon as I can.

davidfor · 12-10-2018, 10:16 PM

Quote:

Originally Posted by SapereAude

I am seeing this issue as well since latest update. On device view all titles are unknown, but titles are properly communicated to device and back. Kobo Aura 2.

All books have "Unknown" in the title? Are these shown as linked to books in the library? What book formats do you have?

alibre · 12-11-2018, 02:43 PM

About the questions for SapereAude, who explains the same what happens to me:
All the books new transfered to device have "Unknown" in the title, the previous books on device had the correct original title.
Yes, there are marked as linked.
The format is epub, and kepub in device.

SapereAude · 12-11-2018, 03:08 PM

Quote:

Originally Posted by alibre

About the questions for SapereAude, who explains the same what happens to me:
All the books new transfered to device have "Unknown" in the title, the previous books on device had the correct original title.
Yes, there are marked as linked.
The format is epub, and kepub in device.

Yes, these are my results as well.

davidfor · 12-12-2018, 07:34 AM

To those who have sent me a debug log, thank for that. I gave me the clue as to what was the problem. From that, I can reproduce the problem.

The problem happens when metadata management is not set to automatic and a book is sent to the device. Changing the setting of metadata management to automatic will solve the problem. This is on the "Sending books to devices" page of the calibre preferences.

As rule, I recommend this setting to be used. Without it, collection management and metadata updating will not be done when you connect the device. It does add extra time to the connection, but, unless you have many thousands of books on the device, it is still fairly quick.

I'll fix it as soon as I can, but, until the fix is released, I recommend changing to automatic management.

To fix the problem for books recently sent to the device, you can either resend them, after changing the setting, or remove the metadata.calibre file from the root directory of the device and running calibre. Or you can download to an older version of calibre.

Edit: I've worked out what was wrong. I just need to test the fix a little more.

fictions · 12-12-2018, 01:45 PM

Thanks for your help davidfor! I changed the setting to automatic and resent the books and it worked perfectly.

alibre · 12-13-2018, 02:43 PM

Thank you very much, davidfor!

12-09-2018, 02:06 PM	#1
fictions Junior Member Posts: 8 Karma: 10 Join Date: Dec 2018 Location: Sweden Device: Kobo Libra 2	[Kobo] Unknown title Hi! I am new to Calibre and used it with my new Kobo Clara HD. Two books I sent, one in PDF and one in ePub, display their titles correctly in the library view but when I send them to the device the titles show up as 'Unknown'. I have tried searching the forums but couldn't find anything about this. Does anyone know why this is happening? I am sorry if this has been asked several times already and if this is the wrong forum to ask this question, I am not only a new Calibre user but also a new user of the forums

12-12-2018, 07:34 AM	#13
davidfor Grand Sorcerer Posts: 24,905 Karma: 47303824 Join Date: Jul 2011 Location: Sydney, Australia Device: Kobo:Touch,Glo, AuraH2O, GloHD,AuraONE, ClaraHD, Libra H2O; tolinoepos	To those who have sent me a debug log, thank for that. I gave me the clue as to what was the problem. From that, I can reproduce the problem. The problem happens when metadata management is not set to automatic and a book is sent to the device. Changing the setting of metadata management to automatic will solve the problem. This is on the "Sending books to devices" page of the calibre preferences. As rule, I recommend this setting to be used. Without it, collection management and metadata updating will not be done when you connect the device. It does add extra time to the connection, but, unless you have many thousands of books on the device, it is still fairly quick. I'll fix it as soon as I can, but, until the fix is released, I recommend changing to automatic management. To fix the problem for books recently sent to the device, you can either resend them, after changing the setting, or remove the metadata.calibre file from the root directory of the device and running calibre. Or you can download to an older version of calibre. Edit: I've worked out what was wrong. I just need to test the fix a little more. Last edited by davidfor; 12-12-2018 at 08:58 AM.

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12-09-2018, 03:27 PM	#2
theducks Well trained by Cats Posts: 31,048 Karma: 60358908 Join Date: Aug 2009 Location: The Central Coast of California Device: Kobo Libra2,Kobo Aura2v1, K4NT(Fixed: New Bat.), Galaxy Tab A	I just saw that with my new Aura2. They are fine on the device

12-09-2018, 04:26 PM	#3
jackie_w Grand Sorcerer Posts: 6,251 Karma: 16539642 Join Date: Sep 2009 Location: UK Device: ClaraHD, Forma, Libra2, Clara2E, LibraCol, PBTouchHD3	Have you configured your calibre Kobo driver (whichever one of KoboTouch or KoboTouchExtended you're currently using) to update metadata? If you're using latest calibre 3.35, enable checkboxes on tab 'Metadata, on-device & advanced' for both: - Update metadata on the device - Update metadata on Book Details pages. The other thing to be aware of for users new to Kobo is that transferring metadata is usually a 2-part process. First connect to calibre: use send-to-device to transfer new books. Then safely disconnect and the Kobo will add new book entries in the Kobo database. A few metadata fields (author, title, comments, ...) will be populated either via extract from the book's internal files or from a metadata plugboard if you're using one. Second (and subsequent) connect to calibre: the calibre driver will auto-magically update metadata in the Kobo database using your latest calibre metadata (author, title, series, publication date, etc ...) The moral of the story: always do a second calibre connect before concluding that metadata isn't being transferred correctly.

12-10-2018, 09:20 AM	#6
SapereAude Junior Member Posts: 6 Karma: 10 Join Date: Oct 2013 Device: Kobo Touch	I am seeing this issue as well since latest update. On device view all titles are unknown, but titles are properly communicated to device and back. Kobo Aura 2.

12-10-2018, 10:26 AM	#8
alibre Junior Member Posts: 3 Karma: 10 Join Date: Dec 2018 Location: Europe Device: Kobo H2O; Kindle Paperwhite	I have the same problem with the title "unknown" and the size is 0. I've send MP with the debug log to davidfor to help. I've used Calibre 3.35 i KoboTouchExtended. Until now (calibre 3.35) it was working ok. Thanks to davidfor.

12-11-2018, 02:43 PM	#11
alibre Junior Member Posts: 3 Karma: 10 Join Date: Dec 2018 Location: Europe Device: Kobo H2O; Kindle Paperwhite	About the questions for SapereAude, who explains the same what happens to me: All the books new transfered to device have "Unknown" in the title, the previous books on device had the correct original title. Yes, there are marked as linked. The format is epub, and kepub in device.

12-12-2018, 01:45 PM	#14
fictions Junior Member Posts: 8 Karma: 10 Join Date: Dec 2018 Location: Sweden Device: Kobo Libra 2	Thanks for your help davidfor! I changed the setting to automatic and resent the books and it worked perfectly.

12-13-2018, 02:43 PM	#15
alibre Junior Member Posts: 3 Karma: 10 Join Date: Dec 2018 Location: Europe Device: Kobo H2O; Kindle Paperwhite	Thank you very much, davidfor!

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