Change full page refresh interval

endriu · 03-10-2017, 01:47 PM

Hi!

Are there any hacks available to change the full page refresh interval? I'm reading a PDF which makes the screen refresh every page (although the interval value for ebooks seems too low as well).

I'm using KPW1, 5.3.6 firmware.

knc1 · 03-10-2017, 03:16 PM

Quote:

Originally Posted by endriu

Hi!

Are there any hacks available to change the full page refresh interval? I'm reading a PDF which makes the screen refresh every page (although the interval value for ebooks seems too low as well).

I'm using KPW1, 5.3.6 firmware.

What is the temperature where you are using the Kindle?

endriu · 03-10-2017, 03:33 PM

I'm aware of the temperature issue and this is not my case.

I checked with ebooks and the current refresh interval is 6 pages. How can I increase it to, say, 10?

In case on PDFs the full refresh happens every page, and AFAIK there's nothing that can be done about that in a standard way. That's why I'm looking for a hack (my device is jailbroken already).

knc1 · 03-10-2017, 05:24 PM

Quote:

Originally Posted by endriu

I'm aware of the temperature issue and this is not my case.

I checked with ebooks and the current refresh interval is 6 pages. How can I increase it to, say, 10?

In case on PDFs the full refresh happens every page, and AFAIK there's nothing that can be done about that in a standard way. That's why I'm looking for a hack (my device is jailbroken already).

The pdf you are writing about, is it page images or characters?

As you point out, e-books (character documents) and images are handled differently.

endriu · 03-10-2017, 05:47 PM

It's an image PDF generated using k2pdfopt.

shamanNS · 03-10-2017, 06:20 PM

And there (image PDF) is your problem. Even for mobi and azw3 books every page that has an image triggers a full screen refresh.
Since you Kindle is already jailbroken you can use KOreader for reading PDFs. The original (text based) PDF, not the output (image pdf) of k2pdfopt.
I've just double-checked (I've used fiction type book , non-image PDF) if KOreader is doing full refresh after every page and it's not doing that, there is full screen refresh every 6 pages.
KOreader does pretty good job with re-flowing PDFs.

endriu · 03-10-2017, 06:38 PM

Thanks for the ideas, the problem is the original is also a scanned image PDF

I assumed that if the refresh is software driven (no reason to think otherwise), then it can be tweaked somehow.

knc1 · 03-11-2017, 02:39 AM

Quote:

Originally Posted by endriu

Thanks for the ideas, the problem is the original is also a scanned image PDF

I assumed that if the refresh is software driven (no reason to think otherwise), then it can be tweaked somehow.

Get us a copy of Amazon's software documentation and somebody will do it.

Or just use an on-line character recognition system to process the images into characters.

endriu · 03-11-2017, 07:50 AM

I just asked if the relevant hack exists. If not, then I can probably live with that.

No need to be sarcastic

knc1 · 03-11-2017, 08:21 AM

Quote:

Originally Posted by endriu

I just asked if the relevant hack exists. If not, then I can probably live with that.

No need to be sarcastic

No sarcasm there, just your second and third choices in addition to the one given you earlier in the thread.

endriu · 03-11-2017, 01:05 PM

OK, I have tested the latest version of KOReader, and the DRCOUNTMAX setting (https://github.com/koreader/koreader...hange-defaults) affects both text and image documents.
So thanks for suggesting that! I hoped for a hack for the stock PDF viewer, but using KOReader is fine for me too.

However, I now have an issue with the nonexistent left margin while viewing this PDF, I will post in KOReader's forum.

Lepricon · 01-05-2018, 03:22 AM

So is there any way to change full refresh interval for ebook via editing system files? I look thru all forum and didn't find any discussions about that.
But some people mentioned that there was thread about that. But I didn't find it.

knc1 · 01-05-2018, 06:00 AM

Quote:

Originally Posted by Lepricon

So is there any way to change full refresh interval for ebook via editing system files? I look thru all forum and didn't find any discussions about that.
But some people mentioned that there was thread about that. But I didn't find it.

give link to where you read that

03-10-2017, 01:47 PM	#1
endriu Enthusiast Posts: 32 Karma: 10 Join Date: Apr 2013 Device: Kindle Paperwhite	Change full page refresh interval Hi! Are there any hacks available to change the full page refresh interval? I'm reading a PDF which makes the screen refresh every page (although the interval value for ebooks seems too low as well). I'm using KPW1, 5.3.6 firmware.

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03-10-2017, 03:33 PM	#3
endriu Enthusiast Posts: 32 Karma: 10 Join Date: Apr 2013 Device: Kindle Paperwhite	I'm aware of the temperature issue and this is not my case. I checked with ebooks and the current refresh interval is 6 pages. How can I increase it to, say, 10? In case on PDFs the full refresh happens every page, and AFAIK there's nothing that can be done about that in a standard way. That's why I'm looking for a hack (my device is jailbroken already).

03-10-2017, 05:47 PM	#5
endriu Enthusiast Posts: 32 Karma: 10 Join Date: Apr 2013 Device: Kindle Paperwhite	It's an image PDF generated using k2pdfopt.

03-10-2017, 06:20 PM	#6
shamanNS Wizard Posts: 1,115 Karma: 12345678 Join Date: Feb 2010 Location: Serbia Device: Kindle PW5, Kobo Libra 2, Kindle PW1	And there (image PDF) is your problem. Even for mobi and azw3 books every page that has an image triggers a full screen refresh. Since you Kindle is already jailbroken you can use KOreader for reading PDFs. The original (text based) PDF, not the output (image pdf) of k2pdfopt. I've just double-checked (I've used fiction type book , non-image PDF) if KOreader is doing full refresh after every page and it's not doing that, there is full screen refresh every 6 pages. KOreader does pretty good job with re-flowing PDFs.

03-10-2017, 06:38 PM	#7
endriu Enthusiast Posts: 32 Karma: 10 Join Date: Apr 2013 Device: Kindle Paperwhite	Thanks for the ideas, the problem is the original is also a scanned image PDF I assumed that if the refresh is software driven (no reason to think otherwise), then it can be tweaked somehow.

03-11-2017, 07:50 AM	#9
endriu Enthusiast Posts: 32 Karma: 10 Join Date: Apr 2013 Device: Kindle Paperwhite	I just asked if the relevant hack exists. If not, then I can probably live with that. No need to be sarcastic

03-11-2017, 01:05 PM	#11
endriu Enthusiast Posts: 32 Karma: 10 Join Date: Apr 2013 Device: Kindle Paperwhite	OK, I have tested the latest version of KOReader, and the DRCOUNTMAX setting (https://github.com/koreader/koreader...hange-defaults) affects both text and image documents. So thanks for suggesting that! I hoped for a hack for the stock PDF viewer, but using KOReader is fine for me too. However, I now have an issue with the nonexistent left margin while viewing this PDF, I will post in KOReader's forum.

01-05-2018, 03:22 AM	#12
Lepricon Nameless Being	So is there any way to change full refresh interval for ebook via editing system files? I look thru all forum and didn't find any discussions about that. But some people mentioned that there was thread about that. But I didn't find it.

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