Koreader running on Kobos (all of them, hopefully!)

[giorgio130]

Frontlight works well.
There are currently some problems with touch input in non-Aurahd models, 2.8.1 sort of screws it up. So on Glo with 2.8.1, it should work, but with some caveats (swipe left not working, as an example).
I'm waiting to advertise the nightly builds on the first post for that problem to be solved.

[roger64]

@giorgio

For what I've read it's a very promising project for PDF and EPUB. But it's also quite young, namely regarding its adaptation to Kobo. So, thanks for providing these infos. I'll be keen to try it as a very average user it once we get your green light but I honestly prefer waiting some weeks -even months- rather than run into problems...

[Ken Maltby]

Has anyone else noticed that the history folder seems to include the whole ebook file inside the .lua file that is there for each history entry? At least going by the file sizes.
I do like that with this latest version, it looks like all your settings are being saved with the history item. I just don't see why they would need all the ebook as well.

I have plenty of storage in my AuraHD, but that history listing grows pretty fast.

Luck;
Ken

In my backup, on my PC, all the history folder entries are 1KB. I checked on my AuraHD again and they are all 1KB now.

[Markismus]

While koreader crashed, I was pressing the frontligthbutton: Auto restore! After restoring it upgraded to version 2.8.1 and after installing 1-Step-Hack it was able to handle djvu-files.
I copied koreader version 483 and it still is able to handle djvu-files!

Apparently sometimes it is better to start from scratch.

[tigran]

Originally Posted by Ken Maltby

Has anyone else noticed that the history folder seems to include the whole ebook file inside the .lua file that is there for each history entry? At least going by the file sizes.
I do like that with this latest version, it looks like all your settings are being saved with the history item. I just don't see why they would need all the ebook as well.

I just checked and in my case (fb2, pdf and djvu files ever opened) this is not the case. If you find that the whole ebook was included in the history file then that is a very critical bug and an issue should be opened in github.

[tigran]

Originally Posted by roger64

@giorgio

For what I've read it's a very promising project for PDF and EPUB. But it's also quite young, namely regarding its adaptation to Kobo. So, thanks for providing these infos. I'll be keen to try it as a very average user it once we get your green light but I honestly prefer waiting some weeks -even months- rather than run into problems...

Although the Kobo port of koreader (previously known as kindlepdfviewer) is indeed very young, the actual software itself (kindlepdfviewer) is almost two years old (born on 22 November 2011).

Also, the main strength of this program is not ePub, but DjVu and much better than "built-in" PDF support. Using koreader for ePub files is, imho, a bit strange as the standard built-in reader is presumably adequate for that. I don't know, I don't read ePub files --- when I need to read ebooks then MOBI is my preferred format and Kindle Keyboard preferred hardware. (MOBI format itself is actually very inefficient, but Amazon's free 3G + 5GB cloud storage accessible from anywhere compensates for this).

But for PDF, DjVu and FB2 files, koreader (and kindlepdfviewer on Kindle) is an ideal tool.

The eInk devices normally sold as "ebook readers" are actually much much more than just "ebook readers", namely they are "real book readers", i.e. can read not only ebooks (FB2, MOBI, ePub, RTF, etc) but also real typeset or scanned books (PDF or DjVu, respectively). Unfortunately, many people don't understand the difference between glyphs and characters which leads to the difference between books and e-books and this causes some confusion.

[tigran]

Originally Posted by Markismus

While koreader crashed, I was pressing the frontligthbutton: Auto restore! After restoring it upgraded to version 2.8.1 and after installing 1-Step-Hack it was able to handle djvu-files.
I copied koreader version 483 and it still is able to handle djvu-files!

Apparently sometimes it is better to start from scratch.

Yes, bitonal DjVu files work fine and I only managed to cause koreader to crash on djvu files when creating several bookmarks and then deleting some of them and creating some more...

But have you tried non-bitonal (COMPOUND) DjVu files? As my code for the rendering mode selection has not yet been ported from kindlepdfviewer to koreader I expect them to be quite unreadable. This is important because most DjVu files available from archive.org are actually not BITONAL, so in kindlepdfviewer I always have to select the render-mode B&W to read them properly. But alas, this is not yet possible in koreader.

[Ken Maltby]

"To each, his own", the addition of Koreader to my high definition ereader has other benefits that, from my point of view, are much more important than an improved PDF or DJVU rendering. In fact, I have a 10.1" tablet, if I need to have portable viewing of such documents. (The PDF document format makes for lousy ebooks, IMHO.)

For me, the addition of the ability to read ebooks contained in PDB files, is of much greater value. The fact that Koreader uses a simple File Manager and can be set to read hidden files (so my large file structure can avoid Nickel's processing) are the critical factors, again "in my humble opinion". The ability to browse through an organized listing of books and find what I feel like reading, is of value to me.

Luck;
Ken

[Markismus]

Originally Posted by tigran

Yes, bitonal DjVu files work fine and I only managed to cause koreader to crash on djvu files when creating several bookmarks and then deleting some of them and creating some more...

But have you tried non-bitonal (COMPOUND) DjVu files? As my code for the rendering mode selection has not yet been ported from kindlepdfviewer to koreader I expect them to be quite unreadable. This is important because most DjVu files available from archive.org are actually not BITONAL, so in kindlepdfviewer I always have to select the render-mode B&W to read them properly. But alas, this is not yet possible in koreader.

This morning I read the following line in defaults.lua:

-- DjVu page rendering mode (used in djvu.c:drawPage())
-- See comments in djvureader.lua:DJVUReader:select_render_mode()
DRENDER_MODE = 0 -- 0 is COLOUR

Would this enable you to switch to B&W?

As for non-bitonal DjVu-files: The cover image of "Rene Descartes The Philosophical Writings of Descartes Volume I 1985" is in color and it gets rendered without problems. Does that answer your question?

[Markismus]

Originally Posted by Ken Maltby

"To each, his own", the addition of Koreader to my high definition ereader has other benefits that, from my point of view, are much more important that an improved PDF or DJVU rendering. In fact, I have a 10.1" tablet, if I need to have portable viewing of such documents. (The PDF document format makes for lousy ebooks, IMHO.)

For me, the addition of the ability to read ebooks contained in PDB files, is of much greater value. The fact that Koreader uses a simple File Manager and can be set to read hidden files (so my large file structure can avoid Nickel's processing) are the critical factors, again "in my humble opinion". The ability to browse through an organized listing of books and find what I feel like reading, is of value to me.

Luck;
Ken

I quite agree that PDF and DjVu make for lousy ebooks. But they are ebooks nonetheless, and most philosophical works are available digitally only as scanned books (with or without OCR). To convert them to epub takes more time and effort than printing and binding. Hence, the importance for me of pdf and DjVu.
And a tablet is not really an option when reading for longer than 30 minutes.

[blablub]

hi everyone,

i have a little problem. I was going to install the KOreader on my kobo glo, but unfortunately i had the bad idea to use the latest nighly-build for kobo from https://code.google.com/p/koreader-p...downloads/list.

Now my kobo is stucked, i see the FileManager witch shows some direktorys but i can't do anything, exept to reboot through using the pinhole and turn on and off the light.

After reboot it is the same picture, also with holding the light button during reboot.

Usb connection don't work, "dmesg" shows nothing.....

Hope you can help me,
Robin

[Ken Maltby]

Did you place the KoboRoot.tgz file in the ".kobo" directory? Then safely eject your Glo from your PC? Did you see the Glo display an "Updating" message?

Do you have KoboLauncher or fmon installed as well? https://www.mobileread.com/forums/sho...d.php?t=201632

What happens when you use the home icon in the dropdown menu, (poke the "File Manager" text)?

Luck;
Ken

[booklover6]

Originally Posted by Ken Maltby

The fact that Koreader uses a simple File Manager and can be set to read hidden files (so my large file structure can avoid Nickel's processing) are the critical factors, again "in my humble opinion". The ability to browse through an organized listing of books and find what I feel like reading, is of value to me.

Luck;
Ken

I haven't figured out how, or if I want, to put KOReader on my Kobo, but I just put it on my Kindle Paperwhite, and it has given me far superior results to the Paperwhite's collection management and text display.

[tuxpeppe]

Hi, I've tryed to install koreader (old version) on my kobo aura hd (with kobo launcher installed)... but now it goes in an infinite loop restarting... I've pressed the reset button for ten secondo also, but it doesn't do nothing...

even if it is plug in into pc it doesn't do nothing...How can I do????

[giorgio130]

Originally Posted by blablub

hi everyone,

i have a little problem. I was going to install the KOreader on my kobo glo, but unfortunately i had the bad idea to use the latest nighly-build for kobo from https://code.google.com/p/koreader-p...downloads/list.

Now my kobo is stucked, i see the FileManager witch shows some direktorys but i can't do anything, exept to reboot through using the pinhole and turn on and off the light.

After reboot it is the same picture, also with holding the light button during reboot.

Usb connection don't work, "dmesg" shows nothing.....

Hope you can help me,
Robin

Hi, I am sorry to read this. I really hoped those kind of issue would be solved with the latest nightlies. About the koreader interface being unresponsive, it should work if your tap is short, i.e. you should leave your finger on the screen for a time as short as possible. This way you should be able to exit it by tapping on the upper center part of the screen and then on the "home" icon. If all this is actually impossible, you'll simply have to do a factory reset, so don't panic! It's impossible for koreader to break the factory reset mechanism, so when you say "After reboot it is the same picture, also with holding the light button during reboot" you should be doing something wrong. Try to press the pinhole you can see in the bottom part of the reader while keeping the light button pressed. Don't let go of the light button until you see on the screen that it is performing a reset.