[Device Plugin] Kobo Touch Extended Driver - Page 76

davidfor · 11-04-2014, 06:24 AM

There shouldn't be any difference between calibre 2.7 and 2.8. Can you uncheck the attempt to support newer firmware version and post the full error message? That will tell me what the driver is seeing on the device.

Filmbrain · 11-04-2014, 04:14 PM

Quote:

Originally Posted by davidfor

There shouldn't be any difference between calibre 2.7 and 2.8. Can you uncheck the attempt to support newer firmware version and post the full error message? That will tell me what the driver is seeing on the device.

Ok -- upgraded to 2.8 and de-selected the option. Upon connecting the device I get the following:

calibre, version 2.8.0
ERROR: Error: Error communicating with device

unable to open database file

Traceback (most recent call last):
File "site-packages/calibre/gui2/device.py", line 87, in run
File "site-packages/calibre/gui2/device.py", line 502, in _books
File "site-packages/calibre/devices/kobo/driver.py", line 1671, in books
OperationalError: unable to open database file

When sending a book to the device, there are no error messages, and the book does show up on the device, but it is not visible by Calibre (not in the database when I look at 'On Device').

Any ideas? Thanks!

Filmbrain · 11-05-2014, 06:55 AM

An update, David --

Today my Kobo upgraded to the latest firmware (3.11) and now everything is once again fine with Calibre and all plugins. Thank you for your time.

davidfor · 11-05-2014, 07:40 AM

Good to hear. But, I can't think of a reason it wasn't OK before..

jgoguen · 11-05-2014, 11:56 PM

Looks to me like DB corruption was likely. The upgrade probably does a repair?

oraoraora · 12-15-2014, 03:59 AM

Hi thanks for creating this plugin! i got my h20 and am creating many collections with it. But i have noticed that when i plug it into the computer, before the backlight would turn off and theres that still image. But now the backlight stays on while connected to pc. Is there a way to remedy this?

davidfor · 12-15-2014, 04:47 AM

The light staying on is a change in the firmware. It used to always turn off but Kobo changed something recently with how the devices connect. Because of this, the light doesn't always turn of. Or at least, with my Glo it sometimes turns off and sometimes stays on. But, the eject behaviour is so much better that I don't care.

jgoguen · 12-15-2014, 08:57 AM

You may be better off asking in the Kobo device forum here, someone there may know or may figure something out in the future and not everyone reading that forum reads this one (or even this thread).

oraoraora · 12-16-2014, 01:22 AM

Well its just the first 10 times i plugged it into my compy, the light always switched off. Then i installed the kobotouchextended plugin and it started getting wonky and staying on so i assumed it had something to do with that. But if everyone is getting this effect then ill just leave it.

davidfor · 12-16-2014, 05:34 AM

Ok, I can see that. But, calibre and the drivers are only responding to what the OS presents it. Whatever decides to turn the light off, or not happens a lot earlier. If you want to check, connect without calibre running and see what happens.

GeoffR · 12-16-2014, 06:20 PM

Sorry I am not really up to date on how this plugin works, but I wonder if it is possible for the wrapper divs that are present in kepubs synced from Kobo to be added to the kepubs that this plugin creates?

The Kobo kepubs look something like:

Code:

<body>
  <div id="book-columns">
    <div id="book-inner">

      ...

    </div>
  </div>
<body>

It is possible to patch the device's built-in stylesheet to add some left/right padding to one of these divs, which cleanly works around a bug in the kepub reader that causes characters with large side bearing (such as f) to cut off when at the end of a line in full-screen mode.

However, without these divs, there doesn't seem to be any way to add padding to elements below body without potentially changing the layout of the book. (because some elements might already have padding.)

(Note that it is not possible for the patched stylesheet to add padding to the body element itself, as this tickles another bug in the kepub reader (or maybe just violates the kepub spec) which shifts the text right and results in even worse cut off problems.)

NiLuJe · 01-08-2015, 06:16 PM

@GeoffR: AFAICT, it currently doesn't even *add* those divs

.

So I went ahead and took a hatchet to the code (I've never used lxml, and I'm far from fluent in Python to begin with, so this may very well be awful, code-wise).

My highly scientific test with a single book would point towards success!

That said, I'm also using your (synced) kepub patch for that very issue, so

.

EDIT: It appears to be screwing up books using div's instead of p's... On the other hand, those books also don't suffer from the cut-off bug on my device... :?

EDIT²: So, take two, with a crappy heuristic to, well, not do it on books that appear to use div tags to handle paragraphs...

jgoguen · 01-08-2015, 07:40 PM

Would you consider creating a pull request for this on GitHub? If this works (and others can verify that) it would be worth a new release to get it out there.

JSWolf · 01-08-2015, 07:42 PM

Quote:

Originally Posted by jgoguen

Would you consider creating a pull request for this on GitHub? If this works (and others can verify that) it would be worth a new release to get it out there.

After enough testing and it's found to work, I don't see a need for a poll as this plugin has been abandoned. So it would make sense to place it the first message for inclusion in Calibre's plugin list.

jgoguen · 01-08-2015, 07:44 PM

I'm the author who abandoned the plugin. And I'm saying if this works I'll make a new release for it.

12-16-2014, 06:20 PM	#1136
GeoffR Wizard Posts: 3,821 Karma: 19162882 Join Date: Nov 2012 Location: Te Riu-a-Māui Device: Kobo Glo	Sorry I am not really up to date on how this plugin works, but I wonder if it is possible for the wrapper divs that are present in kepubs synced from Kobo to be added to the kepubs that this plugin creates? The Kobo kepubs look something like: Code: <body> <div id="book-columns"> <div id="book-inner"> ... </div> </div> <body> It is possible to patch the device's built-in stylesheet to add some left/right padding to one of these divs, which cleanly works around a bug in the kepub reader that causes characters with large side bearing (such as f) to cut off when at the end of a line in full-screen mode. However, without these divs, there doesn't seem to be any way to add padding to elements below body without potentially changing the layout of the book. (because some elements might already have padding.) (Note that it is not possible for the patched stylesheet to add padding to the body element itself, as this tickles another bug in the kepub reader (or maybe just violates the kepub spec) which shifts the text right and results in even worse cut off problems.) Last edited by GeoffR; 12-16-2014 at 06:35 PM. Reason: Note

01-08-2015, 06:16 PM	#1137
NiLuJe BLAM! Posts: 13,477 Karma: 26012492 Join Date: Jun 2010 Location: Paris, France Device: Kindle 2i, 3g, 4, 5w, PW, PW2, PW5; Kobo H2O, Forma, Elipsa, Sage, C2E	@GeoffR: AFAICT, it currently doesn't even add those divs . So I went ahead and took a hatchet to the code (I've never used lxml, and I'm far from fluent in Python to begin with, so this may very well be awful, code-wise). My highly scientific test with a single book would point towards success! That said, I'm also using your (synced) kepub patch for that very issue, so . EDIT: It appears to be screwing up books using div's instead of p's... On the other hand, those books also don't suffer from the cut-off bug on my device... :? EDIT²: So, take two, with a crappy heuristic to, well, not do it on books that appear to use div tags to handle paragraphs... Last edited by NiLuJe; 01-10-2015 at 10:13 AM. Reason: Kill deprecated attachements, cf. #1159

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11-04-2014, 06:24 AM	#1126
davidfor Grand Sorcerer Posts: 24,907 Karma: 47303748 Join Date: Jul 2011 Location: Sydney, Australia Device: Kobo:Touch,Glo, AuraH2O, GloHD,AuraONE, ClaraHD, Libra H2O; tolinoepos	There shouldn't be any difference between calibre 2.7 and 2.8. Can you uncheck the attempt to support newer firmware version and post the full error message? That will tell me what the driver is seeing on the device.

11-05-2014, 06:55 AM	#1128
Filmbrain Connoisseur Posts: 62 Karma: 9796 Join Date: Apr 2013 Device: Kobo Aura HD	An update, David -- Today my Kobo upgraded to the latest firmware (3.11) and now everything is once again fine with Calibre and all plugins. Thank you for your time.

11-05-2014, 07:40 AM	#1129
davidfor Grand Sorcerer Posts: 24,907 Karma: 47303748 Join Date: Jul 2011 Location: Sydney, Australia Device: Kobo:Touch,Glo, AuraH2O, GloHD,AuraONE, ClaraHD, Libra H2O; tolinoepos	Good to hear. But, I can't think of a reason it wasn't OK before..

11-05-2014, 11:56 PM	#1130
jgoguen Generally Awesome Person Posts: 1,061 Karma: 2178845 Join Date: Jan 2013 Location: /dev/kmem Device: Kobo Clara HD, Kindle Oasis	Looks to me like DB corruption was likely. The upgrade probably does a repair?

12-15-2014, 03:59 AM	#1131
oraoraora Junior Member Posts: 2 Karma: 10 Join Date: Dec 2014 Device: kobo aurah20	Hi thanks for creating this plugin! i got my h20 and am creating many collections with it. But i have noticed that when i plug it into the computer, before the backlight would turn off and theres that still image. But now the backlight stays on while connected to pc. Is there a way to remedy this?

12-15-2014, 04:47 AM	#1132
davidfor Grand Sorcerer Posts: 24,907 Karma: 47303748 Join Date: Jul 2011 Location: Sydney, Australia Device: Kobo:Touch,Glo, AuraH2O, GloHD,AuraONE, ClaraHD, Libra H2O; tolinoepos	The light staying on is a change in the firmware. It used to always turn off but Kobo changed something recently with how the devices connect. Because of this, the light doesn't always turn of. Or at least, with my Glo it sometimes turns off and sometimes stays on. But, the eject behaviour is so much better that I don't care.

12-15-2014, 08:57 AM	#1133
jgoguen Generally Awesome Person Posts: 1,061 Karma: 2178845 Join Date: Jan 2013 Location: /dev/kmem Device: Kobo Clara HD, Kindle Oasis	You may be better off asking in the Kobo device forum here, someone there may know or may figure something out in the future and not everyone reading that forum reads this one (or even this thread).

12-16-2014, 01:22 AM	#1134
oraoraora Junior Member Posts: 2 Karma: 10 Join Date: Dec 2014 Device: kobo aurah20	Well its just the first 10 times i plugged it into my compy, the light always switched off. Then i installed the kobotouchextended plugin and it started getting wonky and staying on so i assumed it had something to do with that. But if everyone is getting this effect then ill just leave it.

12-16-2014, 05:34 AM	#1135
davidfor Grand Sorcerer Posts: 24,907 Karma: 47303748 Join Date: Jul 2011 Location: Sydney, Australia Device: Kobo:Touch,Glo, AuraH2O, GloHD,AuraONE, ClaraHD, Libra H2O; tolinoepos	Ok, I can see that. But, calibre and the drivers are only responding to what the OS presents it. Whatever decides to turn the light off, or not happens a lot earlier. If you want to check, connect without calibre running and see what happens.

01-08-2015, 07:40 PM	#1138
jgoguen Generally Awesome Person Posts: 1,061 Karma: 2178845 Join Date: Jan 2013 Location: /dev/kmem Device: Kobo Clara HD, Kindle Oasis	Would you consider creating a pull request for this on GitHub? If this works (and others can verify that) it would be worth a new release to get it out there.

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01-08-2015, 07:44 PM	#1140
jgoguen Generally Awesome Person Posts: 1,061 Karma: 2178845 Join Date: Jan 2013 Location: /dev/kmem Device: Kobo Clara HD, Kindle Oasis	I'm the author who abandoned the plugin. And I'm saying if this works I'll make a new release for it.