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Old 01-27-2015, 05:25 AM   #61
rkomar
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Quote:
Originally Posted by mikmak View Post
Hm, ok. Is there any way I can further debug this on the PB 630? In the crash log only "segmentation fault" is reported, so not really helpful.
Not easily. There's a thread in the development forum where I gave some tips on running gdb on the devices. Running gdb remotely is a pain, though. And running it locally doesn't seem possible since none of the terminals seem to be able to support it. However, I've found that you can set up a file of input commands to gdb to run the program and then print out the stack frame where the crash took place, and redirect standard input for gdb to that file. In this case, though, I'm not sure which process you should run the debugger on. The event forwarder? Some lua interpreter? Who knows.
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Old 01-27-2015, 12:09 PM   #62
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Quote:
Originally Posted by rkomar View Post
No, the white lines are quite short, only about a centimeter long. It is hard to capture in a photo, because it's most obvious when a black bar comes up, but that only lasts for about 1 second. So, I tried taking a movie with my camera, and cropping out part of a frame that showed the problem. It's blurry, but hopefully you can see what's going on in the black region. I'm wondering if the same thing isn't happening in the text, as well, making it faint in places. You can see where it says "Page 1 of 1" that the text is missing some "ink".

By the way, I also have to press a button the first time something is opened before it appears on the screen.
It looks like the waveform mode used when refreshing the screen is not right. But I diffed the latest SDK with the unofficial pbsdk-1.1 and found no difference on the waveform mode definition. This probably needs more investigation.
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Old 01-27-2015, 01:46 PM   #63
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Could some one install this test build on their PocketBook devices? It will log detailed information on the framebuffer configuration of the device from which developers could find a way to solve the display problem on some PocketBook devices.

How-to-test:
Just download the unzip the zip package from the above linked page and copy the extracted "applications" directory to your PocketBook devices. Then launch Koreader in the applications menu. And a "koreader.log" file will be generated in the "applications/koreader" directory on your device. It will be very helpful to post the first few lines of that file to this thread.

Sample info you may need to post:
Code:
PocketBook framebuffer info
framebuffer finfo pitc	1200
framebuffer finfo size	1921024
framebuffer finfo pann	1	1
framebuffer vinfo xres	1200	1200
framebuffer vinfo yres	1600	1600
framebuffer vinfo offs	0	0
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Old 01-27-2015, 02:24 PM   #64
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Code:
PocketBook framebuffer info
framebuffer finfo pitc	758
framebuffer finfo size	786432
framebuffer finfo pann	1	1
framebuffer vinfo xres	758	758
framebuffer vinfo yres	1024	1024
framebuffer vinfo offs	0	0
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Old 01-27-2015, 03:00 PM   #65
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This is for my Touch Lux 623 with firmware 4.4.180:

Code:
PocketBook framebuffer info
framebuffer finfo pitc  768
framebuffer finfo size  3145728
framebuffer finfo pann  1       1
framebuffer vinfo xres  758     768
framebuffer vinfo yres  1024    2048
framebuffer vinfo offs  0       0
# initializing for device PocketBook
# framebuffer resolution: {
        ["h"] = 1024,
        ["w"] = 758
}
and by the way, the log shows some errors like this:

Code:
# INFO: invalid widget for setDirty() stack traceback:
        frontend/ui/uimanager.lua:204: in function 'setDirty'
        frontend/ui/widget/button.lua:157: in function 'action'
        frontend/ui/uimanager.lua:296: in function '_checkTasks'
        frontend/ui/uimanager.lua:444: in function 'run'
        ./reader.lua:138: in main chunk
        [C]: at 0x0000bdf1
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Old 01-27-2015, 05:11 PM   #66
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Device: PocketBook Touch (622), PocketBook Touch Lux 2, Pocketbook Touch HD 3
This is for my Touch 622:

Code:
PocketBook framebuffer info
framebuffer finfo pitc	608
framebuffer finfo size	2179072
framebuffer finfo pann	1	1
framebuffer vinfo xres	600	608
framebuffer vinfo yres	800	1792
framebuffer vinfo offs	0	0
# initializing for device PocketBook
# framebuffer resolution: {
	["h"] = 800,
	["w"] = 600
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Old 01-31-2015, 09:52 AM   #67
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This is for my PB 626
(Firmware : W626.4.4.1151 date: 20141024_140004)

Quote:
PocketBook framebuffer info
framebuffer finfo pitc 758
framebuffer finfo size 786432
framebuffer finfo pann 1 1
framebuffer vinfo xres 758 758
framebuffer vinfo yres 1024 1024
framebuffer vinfo offs 0 0
# initializing for device PocketBook
# framebuffer resolution: {
["h"] = 1024,
["w"] = 758
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Old 01-31-2015, 10:49 AM   #68
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Quote:
Originally Posted by Zetmolm View Post
This is for my Touch 622:

Code:
PocketBook framebuffer info
framebuffer finfo pitc	608
framebuffer finfo size	2179072
framebuffer finfo pann	1	1
framebuffer vinfo xres	600	608
framebuffer vinfo yres	800	1792
framebuffer vinfo offs	0	0
# initializing for device PocketBook
# framebuffer resolution: {
	["h"] = 800,
	["w"] = 600
@Zetmolm Is there any problem on the screen display with the latest koreader? Can you take a picture of what koreader shows? I expect the screen looks normal with koreader on your device.
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Old 01-31-2015, 11:02 AM   #69
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Now we need the above framebuffer info on PocketBook Mini(515) to verify my hypothesis that on PocketBook the actual framebuffer pitch may need 16-bytes padding but not revealed in the fixed framebuffer info. That's to say, pitch size 758 from finfo is not reliable and should always be modified to 768, like PB626. And pitch size 600 should be modified to 608, like PB515(? needs verification). And pitch size 768 on PB623 and pitch size 1200 on PB840 does not need to be modified.

Last edited by chrox; 01-31-2015 at 02:28 PM.
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Old 01-31-2015, 12:33 PM   #70
gyeben
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Device: Pocketbook 614W (Basic 2)
koreader.log from my PocketBook Basic 2 (614):

Code:
PocketBook framebuffer info
framebuffer finfo pitc  600
framebuffer finfo size  487424
framebuffer finfo pann  1       1
framebuffer vinfo xres  600     600
framebuffer vinfo yres  800     800
framebuffer vinfo offs  0       0
# initializing for device PocketBook
# framebuffer resolution: {
        ["h"] = 800,
        ["w"] = 600
I *think* that the Mini (515) uses the same framebuffer as the Basic 2, since the resolution is the same.
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Old 01-31-2015, 05:04 PM   #71
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Quote:
Originally Posted by gyeben View Post
I *think* that the Mini (515) uses the same framebuffer as the Basic 2, since the resolution is the same.
It's true

PB Mini 515:
Code:
PocketBook framebuffer info
framebuffer finfo pitc	600
framebuffer finfo size	487424
framebuffer finfo pann	1	1
framebuffer vinfo xres	600	600
framebuffer vinfo yres	800	800
framebuffer vinfo offs	0	0
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Old 01-31-2015, 06:10 PM   #72
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Quote:
Originally Posted by chrox View Post
@Zetmolm Is there any problem on the screen display with the latest koreader? Can you take a picture of what koreader shows? I expect the screen looks normal with koreader on your device.
Yes, on the whole the screen looks normal. But in the menus there are smal 'gaps' in some letters. And the contrast in the text is very poor, even though I select darker contrast. And I see the white lines as reported in post #54.
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Old 02-01-2015, 02:40 AM   #73
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Thanks for everyone here. The framebuffer issue on PocketBook devices should be solved on the next koreader nightly release.
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Old 02-01-2015, 11:09 AM   #74
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Great job, chrox!
(That's the first thing I should have mentioned yesterday. My only excuse is that it was past midnight for me.)
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Old 02-03-2015, 04:19 AM   #75
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Some question:

- Does koreader use A2 refresh mode? I am asking about this because builtin apps have faster and better scrolling. In builtin apps when scrolling page is displayed in black and white (high contrast, no grays), and scrolling is fast. In koreader grays are still displayed when scrolling and it is slower.
- Is there any way to go back from filebrowser to already opened document without selecting any file?
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