[Device Plugin] Kobo Touch Extended Driver - Page 149

davidfor · 06-21-2020, 10:36 AM

Quote:

Originally Posted by jgoguen

I don't know if the class attribute is needed (it's present in KePubs published by Kobo) but those spans and their id attributes are what Kobo uses to save your reading position (and probably anything else involving locations inside books).

And they explicitly don't have any style so that they don't change the layout of the book.

DNSB · 06-21-2020, 01:01 PM

Quote:

Originally Posted by davidfor

And they explicitly don't have any style so that they don't change the layout of the book.

Actually, looking at a kepub from Kobo, the kobospan does have a style defined in each text file rather than in a stylesheet.

Code:

<style xmlns="http://www.w3.org/1999/xhtml" type="text/css" id="koboSpanStyle">.koboSpan { -webkit-text-combine: inherit; }</style>

Admittedly, I'm not quite sure just what that bit of CSS means where it is used since the only other time I've seen -webkit-text-combine in the wild, it was used with horizontal to display horizontal elements in a vertical text column (arabic numbers in a vertical Japanese document for example).

compurandom · 06-21-2020, 04:51 PM

Quote:

Originally Posted by madhatta

not a Linux model.

I would like to point out that when a distribution modifies software and distributes it as buggy, the linux model is to report the bug TO THE DISTRIBUTION that introduced the bug, NOT to the upstream software authors.

You are barking up the wrong tree. Tell your distro to fix their bugs and quit bothering us about stuff we can't fix. Or don't use the buggy version your distro provides and use the official one, like most of the rest of the people here. Or use the much older unix open source model and DOWNLOAD THE SOURCE AND COMPILE IT YOURSELF.

THAT is the linux model, not what you are suggesting.

jxall · 06-21-2020, 06:58 PM

Quote:

Originally Posted by davidfor

Are the books definitely on the device? Can you see them on the device before you eject? Are you sending new books, or replacing exiting copies?

The quick import could be because the first book failed to be processed correctly. That blocks the rest from being imported. And, if this was happening before, it might be a leftover from a previously sideloaded batch. You will probably need to remove these books, work out which are triggering the problem, fix it and send them again. Unfortunately, the only way I know to do this, is send the books in small batches until you find the problem book.

Either Calibre or Windows explorer tell me that the books are definitely on the device. The synced ebooks end up on the Kobo and stay there forever or until I delete them using Calibre... They just can't be seen and browsed from the device itself.

Unfortunately I have to report that this problem of mine doesn't seem to be book-related or batch-related, because all these recent ebooks loaded just fine (except for the spacing issue) before the latest KTE update.
I have just tried to convert + sync newer books; to delete + re-sync ebooks converted months ago; and even to delete + re-convert + sync books that used to work in the past: none of the synced book can be seen from the device.

Could it be something just metadata-related or driver-related? I wish I could help you better than this, but I am not an expert of debugging Calibre and ereaders. I'm a noob even at using these things!

Am I the only one experiencing this issue, by any chance? If it's like that then I'll just factory reset my device...

JSWolf · 06-21-2020, 07:08 PM

Quote:

Originally Posted by jxall

Either Calibre or Windows explorer tell me that the books are definitely on the device. The synced ebooks end up on the Kobo and stay there forever or until I delete them using Calibre... They just can't be seen and browsed from the device itself.

Unfortunately I have to report that this problem of mine doesn't seem to be book-related or batch-related, because all these recent ebooks loaded just fine (except for the spacing issue) before the latest KTE update.
I have just tried to convert + sync newer books; to delete + re-sync ebooks converted months ago; and even to delete + re-convert + sync books that used to work in the past: none of the synced book can be seen from the device.

Could it be something just metadata-related or driver-related? I wish I could help you better than this, but I am not an expert of debugging Calibre and ereaders. I'm a noob even at using these things!

Am I the only one experiencing this issue, by any chance? If it's like that then I'll just factory reset my device...

Try the following and see if it works. Use kepubify to convert the ePub to KePub and then load the KePub onto your Kobo to see if it works. Use one of the ones you tried before that didn't work.

Here is the thread on kepubify.

https://www.mobileread.com/forums/sh...d.php?t=326652

icallaci · 06-21-2020, 07:08 PM

Quote:

Originally Posted by jxall

Either Calibre or Windows explorer tell me that the books are definitely on the device. The synced ebooks end up on the Kobo and stay there forever or until I delete them using Calibre... They just can't be seen and browsed from the device itself.

...

Am I the only one experiencing this issue, by any chance? If it's like that then I'll just factory reset my device...

I am not experiencing this problem with my Kobo Forma. I just added a book to make sure the problem wasn't newly introduced with the new KTE driver or the latest version of Calibre (4.19), and the kepub showed up just fine on my device. Sorry I can't help.

NiLuJe · 06-21-2020, 07:26 PM

@jxall: Are you seeing the "Processing new content" screen when ejecting your device after sending new books?

The system logs should shed some light on what the Kobo thinks is happening (in particular, the content import process). Search for devmodeon before the whole process, then plug it back on after having sent some books, and check the system logs in the .kobo folder.

seanbob · 06-21-2020, 07:57 PM

Thanks for all the efforts to provide support for Kobo devices in Calibre!

I believe that I've found at least two other tag-related bugs (similar to the recent issue) that haven't been discussed yet. Unneccessary tags are being added prior to some <a> and tags during EPUB to KEPUB conversion. I'll post example snippets below that illustrate a single paragraph, but can also provide scrambled EPUBs if necessary.

I'm running Calibre v4.19 and the latest plugin version (KTE v3.2.11). Each has been present since at least KTE v3.2.7. If it matters, the formatting appears correct when testing the conversion with kepubify.

Examples

Spoiler:

<a> Example (Original HTML):
I had fully determined at the conclusion of The Memoirs to bring Holmes<a id="GBS.1670.02"/> to an end, as I felt that my literary energies should not be directed too much into one channel. That pale, clear-cut face and loose-limbed figure were taking up an undue share of my imagination. I did the deed, but fortunately no coroner had pronounced upon the remains, and so, after a long interval, it was not difficult for me to respond to the flattering demand and to explain my rash act away.<a id="GBS.1670.03"/> I have never regretted it, for I have not in actual practice found that these lighter sketches have prevented me from exploring and finding my limitations in such varied branches of literature as history, poetry, historical novels, psychic research, and the drama. Had Holmes never existed I could not have done more, though he may perhaps have stood a little in the way of the recognition of my more<a id="GBS.1670.04"/> serious literary work.

<a> Example (KTE Converted):
I had fully determined at the conclusion of The Memoirs to bring Holmes<a id="GBS.1670.02"></a><a id="GBS.1670.02"> to an end, as I felt that my literary energies should not be directed too much into one channel. That pale, clear-cut face and loose-limbed figure were taking up an undue share of my imagination. I did the deed, but fortunately no coroner had pronounced upon the remains, and so, after a long interval, it was not difficult for me to respond to the flattering demand and to explain my rash act away.</a><a id="GBS.1670.03"></a> I have never regretted it, for I have not in actual practice found that these lighter sketches have prevented me from exploring and finding my limitations in such varied branches of literature as history, poetry, historical novels, psychic research, and the drama. Had Holmes never existed I could not have done more, though he may perhaps have stood a little in the way of the recognition of my more<a id="GBS.1670.04"></a> serious literary work.

<a> Example (Kepubify Converted):
I had fully determined at the conclusion of The Memoirs to bring Holmes<a id="GBS.1670.02"></a> to an end, as I felt that my literary energies should not be directed too much into one channel. That pale, clear-cut face and loose-limbed figure were taking up an undue share of my imagination. I did the deed, but fortunately no coroner had pronounced upon the remains, and so, after a long interval, it was not difficult for me to respond to the flattering demand and to explain my rash act away.<a id="GBS.1670.03"></a> I have never regretted it, for I have not in actual practice found that these lighter sketches have prevented me from exploring and finding my limitations in such varied branches of literature as history, poetry, historical novels, psychic research, and the drama. Had Holmes never existed I could not have done more, though he may perhaps have stood a little in the way of the recognition of my more<a id="GBS.1670.04"></a> serious literary work.

 Example (Original XHTML):
Todd smiled as the homework assignments were wiped away. The Ultimate Test was canceled. His name was removed from the discipline list, and even the word DISCIPLINE soon disappeared.

 Example (KTE Converted):
Todd smiled as the homework assignments were wiped away. The Ultimate Test was canceled. His name was removed from the discipline list, and even the word DISCIPLINE soon disappeared.

 Example (Kepubify Converted):
Todd smiled as the homework assignments were wiped away. The Ultimate Test was canceled. His name was removed from the discipline list, and even the word DISCIPLINE soon disappeared.

davidfor · 06-21-2020, 09:05 PM

Quote:

Originally Posted by DNSB

Actually, looking at a kepub from Kobo, the kobospan does have a style defined in each text file rather than in a stylesheet.

Code:

<style xmlns="http://www.w3.org/1999/xhtml" type="text/css" id="koboSpanStyle">.koboSpan { -webkit-text-combine: inherit; }</style>

Admittedly, I'm not quite sure just what that bit of CSS means where it is used since the only other time I've seen -webkit-text-combine in the wild, it was used with horizontal to display horizontal elements in a vertical text column (arabic numbers in a vertical Japanese document for example).

My first reaction:

Always check before you make some statement.

But, then I check. The three books I looked at didn't have the above statement. And one didn't have the class in the spans. They were just:

Code:

<span id="kobo.8.1">

Which I hadn't seen before.

But, even with that class defined, aren't all the styles just going to pass through it?

DNSB · 06-21-2020, 10:08 PM

Quote:

Originally Posted by davidfor

My first reaction:

Always check before you make some statement.

I can't remember which one of the extensions to Murphy's Law covers this situation.

Quote:

Originally Posted by davidfor

But, then I check. The three books I looked at didn't have the above statement. And one didn't have the class in the spans. They were just:

Code:

<span id="kobo.8.1">

Which I hadn't seen before.

But, even with that class defined, aren't all the styles just going to pass through it?

In theory, the cascade should just pass through. In real life, things gang aft agley.

thatbend · 06-22-2020, 01:22 AM

I am having the same issue as jxall on two separate Clara HDs. Converting with kepubify and sideloading manually, bypassing Calibre altogether, does let the book be readable on the device.

jxall · 06-22-2020, 04:33 AM

Quote:

Originally Posted by JSWolf

Try the following and see if it works. Use kepubify to convert the ePub to KePub and then load the KePub onto your Kobo to see if it works. Use one of the ones you tried before that didn't work.

Quote:

Originally Posted by thatbend

I am having the same issue as jxall on two separate Clara HDs. Converting with kepubify and sideloading manually, bypassing Calibre altogether, does let the book be readable on the device.

I ran some tests using Kepubify and this is what I got:

conversion using Kepubify + copy/paste to Kobo main folder: Kobo sees the ebook (just like @thatbend says)
conversion using Kepubify + manual editing of the file extension to prevent unneeded auto-conversion in Calibre (edited from .kepub.epub to just .kepub) + added the .kepub to Calibre library + synced the .kepub to Kobo (without re-converting anything): Kobo doesn't see the ebook

As I suspected, the problem doesn't have anything to do with the conversion itself, but most likely with the way metadata is managed or sent from Calibre to the device.

Quote:

Originally Posted by NiLuJe

@jxall: Are you seeing the "Processing new content" screen when ejecting your device after sending new books?

The system logs should shed some light on what the Kobo thinks is happening (in particular, the content import process). Search for devmodeon before the whole process, then plug it back on after having sent some books, and check the system logs in the .kobo folder.

Yes, I always get the processing screen but it is always suspiciously fast (it lasts 3 seconds maximum) - no matter if I sync 1 ebook or 50 ebooks.

Here's an extract of the log, going from

Code:

Pruning file "file:///mnt/onboard/old_ebook_filename.kepub.epub"

(i.e. the moment of the sideloading of the new ebook) to the very end:

20200622_1011_log.txt

jgoguen · 06-22-2020, 10:00 AM

Quote:

Originally Posted by seanbob

I believe that I've found at least two other tag-related bugs (similar to the recent issue) that haven't been discussed yet. Unneccessary tags are being added prior to some <a> and tags during EPUB to KEPUB conversion. I'll post example snippets below that illustrate a single paragraph, but can also provide scrambled EPUBs if necessary.

Can you post a scrambled ePub, a scrambled copy of the converted KePub, and the calibre debug log containing only converting the book?

jgoguen · 06-22-2020, 10:05 AM

Quote:

Originally Posted by jxall

As I suspected, the problem doesn't have anything to do with the conversion itself, but most likely with the way metadata is managed or sent from Calibre to the device.

If it's metadata it may not be this driver. Can you do a few things:

Remove all problematic books from the device
Restart calibre in debug mode
Send one single problematic book to the Kobo, then close calibre (to get the debug log) and restart it normally
Attach a scrambled copy of the book and the calibre debug log

jgoguen · 06-22-2020, 10:52 AM

Quote:

Originally Posted by davidfor

But, even with that class defined, aren't all the styles just going to pass through it?

After some digging, it seems "-webkit-text-combine" has only two values (other than the implicit "inherit" available on all inheritable properties): "horizontal" and "none". "none" is the default, "horizontal" is the same as the standard CSS property "text-combine-upright: all" (which is currently the only valid value other than "none" according to the standard; CSS4 includes a "digits" keyword that makes it apply only to digits, e.g. "digits 2" and "digits" are the same, "digits 4" applies to up to 4 consecutive digits).

According to the "text-combine-upright" standard, this breaks across box boundaries; "This is text" could have it applied, but "This is text in a box" would break and user agents should treat it as though "text-combine-upright" were set to "none". That doesn't seem to be always true in practice, at least Chrome attempts to do the intuitive thing and effectively sets the default values as "-webkit-text-combine: inherit" and "text-combine-upright: inherit". Kobo's style declaration seems to be either saying the ACCESS renderer adheres to the standard or is acknowledging that books may be read on devices which do.

So yes, in theory this should be a no-op for most books.

But it does have me wondering if I should be trying to make sure that style declaration is present.

06-21-2020, 07:57 PM	#2228
seanbob Enthusiast Posts: 27 Karma: 52 Join Date: Jun 2009 Device: Sony PRS-650	Thanks for all the efforts to provide support for Kobo devices in Calibre! I believe that I've found at least two other tag-related bugs (similar to the recent <br/> issue) that haven't been discussed yet. Unneccessary </p> tags are being added prior to some <a> and <span> tags during EPUB to KEPUB conversion. I'll post example snippets below that illustrate a single paragraph, but can also provide scrambled EPUBs if necessary. I'm running Calibre v4.19 and the latest plugin version (KTE v3.2.11). Each has been present since at least KTE v3.2.7. If it matters, the formatting appears correct when testing the conversion with kepubify. Examples Spoiler: <a> Example (Original HTML): <p class="indent"><em>I had fully determined at the conclusion of</em> The Memoirs <em>to bring Holmes<a id="GBS.1670.02"/> to an end, as I felt that my literary energies should not be directed too much into one channel. That pale, clear-cut face and loose-limbed figure were taking up an undue share of my imagination. I did the deed, but fortunately no coroner had pronounced upon the remains, and so, after a long interval, it was not difficult for me to respond to the flattering demand and to explain my rash act away.<a id="GBS.1670.03"/> I have never regretted it, for I have not in actual practice found that these lighter sketches have prevented me from exploring and finding my limitations in such varied branches of literature as history, poetry, historical novels, psychic research, and the drama. Had Holmes never existed I could not have done more, though he may perhaps have stood a little in the way of the recognition of my more<a id="GBS.1670.04"/> serious literary work</em>.</p> <a> Example (KTE Converted): <p class="indent"><em><span class="koboSpan" id="kobo.50.1">I had fully determined at the conclusion of</span></em><span class="koboSpan" id="kobo.51.1"> The Memoirs </span><em><span class="koboSpan" id="kobo.52.1">to bring Holmes</span><a id="GBS.1670.02"></a></em></p><em><a id="GBS.1670.02"><span class="koboSpan" id="kobo.55.1"> to an end, as I felt that my literary energies should not be directed too much into one channel. </span><span class="koboSpan" id="kobo.55.2">That pale, clear-cut face and loose-limbed figure were taking up an undue share of my imagination. </span><span class="koboSpan" id="kobo.55.3">I did the deed, but fortunately no coroner had pronounced upon the remains, and so, after a long interval, it was not difficult for me to respond to the flattering demand and to explain my rash act away.</span></a><a id="GBS.1670.03"></a><span class="koboSpan" id="kobo.57.1"> I have never regretted it, for I have not in actual practice found that these lighter sketches have prevented me from exploring and finding my limitations in such varied branches of literature as history, poetry, historical novels, psychic research, and the drama. </span><span class="koboSpan" id="kobo.57.2">Had Holmes never existed I could not have done more, though he may perhaps have stood a little in the way of the recognition of my more</span><a id="GBS.1670.04"></a><span class="koboSpan" id="kobo.59.1"> serious literary work</span></em><span class="koboSpan" id="kobo.61.1">.</span><p></p> <a> Example (Kepubify Converted): <p class="indent"><em><span class="koboSpan" id="kobo.5.1">I had fully determined at the conclusion of</span></em><span class="koboSpan" id="kobo.5.2"> The Memoirs </span><em><span class="koboSpan" id="kobo.5.3">to bring Holmes</span><a id="GBS.1670.02"></a><span class="koboSpan" id="kobo.5.4"> to an end, as I felt that my literary energies should not be directed too much into one channel. </span><span class="koboSpan" id="kobo.5.5">That pale, clear-cut face and loose-limbed figure were taking up an undue share of my imagination. </span><span class="koboSpan" id="kobo.5.6">I did the deed, but fortunately no coroner had pronounced upon the remains, and so, after a long interval, it was not difficult for me to respond to the flattering demand and to explain my rash act away.</span><a id="GBS.1670.03"></a><span class="koboSpan" id="kobo.5.7"> I have never regretted it, for I have not in actual practice found that these lighter sketches have prevented me from exploring and finding my limitations in such varied branches of literature as history, poetry, historical novels, psychic research, and the drama. </span><span class="koboSpan" id="kobo.5.8">Had Holmes never existed I could not have done more, though he may perhaps have stood a little in the way of the recognition of my more</span><a id="GBS.1670.04"></a><span class="koboSpan" id="kobo.5.9"> serious literary work</span></em><span class="koboSpan" id="kobo.5.10">.</span></p> <span> Example (Original XHTML): <p class="indent">Todd smiled as the homework assignments were wiped away. The Ultimate Test was canceled. His name was removed from the discipline <span class="right_1" epub:type="pagebreak" id="page_7" title="7"/>list, and even the word DISCIPLINE soon disappeared.</p> <span> Example (KTE Converted): <p class="indent"><span class="koboSpan" id="kobo.86.1">Todd smiled as the homework assignments were wiped away. </span><span class="koboSpan" id="kobo.86.2">The Ultimate Test was canceled. </span><span class="koboSpan" id="kobo.86.3">His name was removed from the discipline </span><span epub:type="pagebreak" title="7" class="right_1" id="page_7"></span></p><span class="koboSpan" id="kobo.88.1">list, and even the word DISCIPLINE soon disappeared.</span><p></p> <span> Example (Kepubify Converted): <p class="indent"><span class="koboSpan" id="kobo.48.1">Todd smiled as the homework assignments were wiped away. </span><span class="koboSpan" id="kobo.48.2">The Ultimate Test was canceled. </span><span class="koboSpan" id="kobo.48.3">His name was removed from the discipline </span><span class="right_1" epub:type="pagebreak" id="page_7" title="7"></span><span class="koboSpan" id="kobo.48.4">list, and even the word DISCIPLINE soon disappeared.</span></p>

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06-21-2020, 07:26 PM	#2227
NiLuJe BLAM! Posts: 13,506 Karma: 26047202 Join Date: Jun 2010 Location: Paris, France Device: Kindle 2i, 3g, 4, 5w, PW, PW2, PW5; Kobo H2O, Forma, Elipsa, Sage, C2E	@jxall: Are you seeing the "Processing new content" screen when ejecting your device after sending new books? The system logs should shed some light on what the Kobo thinks is happening (in particular, the content import process). Search for devmodeon before the whole process, then plug it back on after having sent some books, and check the system logs in the .kobo folder.

06-22-2020, 01:22 AM	#2231
thatbend Junior Member Posts: 2 Karma: 10 Join Date: Jun 2020 Device: Kobo Clara HD	I am having the same issue as jxall on two separate Clara HDs. Converting with kepubify and sideloading manually, bypassing Calibre altogether, does let the book be readable on the device.