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

[Ken Maltby]

serdar0020; Have you tried a left to right swipe, starting on the left side? Or using the menu options, for this?

Luck;
Ken

[serdar0020]

I can swipe left to right and go to the previous page. Which menu option did you mean?

[NiLuJe]

First tab of the top menu > Links, there's a couple of gestures there, one of which is for "back to prev loc" (plus, a "back to prev loc" menu entry in the toplevel menu, as Ken mentioned).

[serdar0020]

thanks guys, I finally got it: just activate in the links section "swipe to get back" and "swipe to jump to latest bookmark" - then no more accidental tapping on footnotes

[CH23]

@NiLuJe

I don't know if you've heard about the backlight issue on the Clara yet, (probably not as I don't think anybody else has got KOReader running on that?) but I got the following error message, which might interest you:

                launching...
  _  _____  ____                _
 | |/ / _ \|  _ \ ___  __ _  __| | ___ _ __
 | ' / | | | |_) / _ \/ _` |/ _` |/ _ \ '__|
 | . \ |_| |  _ <  __/ (_| | (_| |  __/ |
 |_|\_\___/|_| \_\___|\__,_|\__,_|\___|_|

 It's a scroll... It's a codex... It's KOReader!
[*] Current time: 07/19/18-10:10:24[*] Version: v2015.11-1735-g14e7730_2018-06-02

[...]

07/19/18-10:10:24 ERROR Could not open file:  /sys/class/backlight/lm3630a_led1b/bl_power
07/19/18-10:10:24 ERROR Could not open file:  /sys/class/backlight/lm3630a_led1b/brightness
07/19/18-10:10:24 ERROR Could not open file:  /sys/class/backlight/lm3630a_led1a/bl_power
07/19/18-10:10:24 ERROR Could not open file:  /sys/class/backlight/lm3630a_led1a/brightness
07/19/18-10:10:24 INFO  initializing for device Kobo_nova

[...]

this is a snippet of crash.log

doing

ls -lah /sys/class/backlight/

(from KSM web interface) gives the following:

 ### executed:ls -lah /sys/class/backlight/

total 0
drwxr-xr-x    2 root     root           0 Jul 19 21:15 .
drwxr-xr-x   38 root     root           0 Jul 19 21:06 ..
lrwxrwxrwx    1 root     root           0 Jul 19 21:15 lm3630a_led -> ../../devices/platform/soc/2100000.aips-bus/21a0000.i2c/i2c-0/0-0036/backlight/lm3630a_led
lrwxrwxrwx    1 root     root           0 Jul 19 21:15 lm3630a_leda -> ../../devices/platform/soc/2100000.aips-bus/21a0000.i2c/i2c-0/0-0036/backlight/lm3630a_leda
lrwxrwxrwx    1 root     root           0 Jul 19 21:15 lm3630a_ledb -> ../../devices/platform/soc/2100000.aips-bus/21a0000.i2c/i2c-0/0-0036/backlight/lm3630a_ledb
lrwxrwxrwx    1 root     root           0 Jul 19 21:15 mxc_msp430.0 -> ../../devices/platform/ntx_bl/backlight/mxc_msp430.0

the names don't match:
koreader wants led1a. led1b
the filesystem has leda, ledb

led controls orange and white (values 0 - 100) (if you change the value, it will turn off white and only do orange)
leda controls orange (values 0 - 255)
ledb controls white (values 0 - 255)
mxc_msp430.0 controls orange (values 0 - 100) (if you change the value, it will turn off white and only do orange)

'led' sets a value between 0% and 100% of the chosen value of 'leda' and 'ledb' (so if you set 'ledb' at 128(~50%), and 'led' at 50(~50%), the screen will output ~25% total brightness (in theory. apparently it can also set it higher, so maybe the scale of 0 - 100, has 0 - 50 = dim 0% - 100%, and 50 - 100 = brighten 0% - 100%?

i tried some things, using:

echo $value > /sys/devices/platform/ntx_bl/backlight/mxc_msp430.0/brightness
echo $value > /sys/class/backlight/lm3630a_led/brightness
echo $value > /sys/class/backlight/lm3630a_leda/brightness
echo $value > /sys/class/backlight/lm3630a_ledb/brightness

'led' can turn down, and off 'leda' and 'ledb'
'led' can turn on 'leda' (not 'ledb')
'mxc_msp430.0' can turn down, on and off 'leda'
'leda' can turn down, on and off 'leda'
'ledb' can turn down, on and off 'ledb'

then i found 'color'

echo (0 - 10) > /sys/class/backlight/lm3630a_led/color
0 = orange, 10 = white. all inbetween, is inbetween.

so for colour tone, use /sys/class/backlight/lm3630a_led/color
for dimming, use 'leda' and 'ledb'

I hope this gives you an idea of how the backlight works?

[NiLuJe]

Yeah, that might be helpful .

Someone had provided us with different settings, but there was an issue with *one* of the led, which is made apparent by your information, so I'll tweak that a bit and *hope* the rest of the backend will deal with it properly .

I don't have *any* device with that kind of HW to test, so I can't be of much more help, unfortunately .

[NiLuJe]

You might want to check how a current nightly behaves, and, after that, if this commit breaks it or not .

[CH23]

Originally Posted by NiLuJe

You might want to check how a current nightly behaves, and, after that, if this commit breaks it or not .

nightly works, the light and warmth sliders work correctly as well.

and that patch doesn't seem to have negative effects

looking at the physical hardware, it seems that the red and white LEDs are separate from eachother, and I don't think there are any green LEDs in this device.

To make sure of this, someone will have to take the front cover off the device, and then the black tape covering the LEDs. (but that's a bit too much, if you ask me.)

[NiLuJe]

@CH23: Yeah, that'll have to do for now . Thanks!

[embryo]

The previous keyboard I had posted, was based on an older layout.
Just update it to the current one.
It would be nice if someone could copy it to the GitHub..

[Alan_S]

Koreader is superior ebook reading software (not OS), but, KA1 has hardware problems with touch, so I guess that no software can solve these problems, otherwise Kobo would sort this out already.

And yes, I know it very well and it is unnerving. If you can, try KA1 and how it works with touch (very badly in my opinion, it is my biggest problem with it, my H2O works much better) before you buy it.

[NiLuJe]

That's a tiny bit scary, because the H2O's touch performance is already fairly abysmal compared to, let's say, even a PW1... (It's usable, though, and it got a tiiiiiny bit better, but it's still fairly jarring coming from a Kindle).

[Alan_S]

Well, imagine how KA1 works.

[cramoisi]

Yup, the touch on KA1 is soo flawed...

[Frenzie]

Originally Posted by Alan_S

Koreader is superior ebook reading software (not OS), but, KA1 has hardware problems with touch, so I guess that no software can solve these problems, otherwise Kobo would sort this out already.

Nickel/KOReader/coolreader can't, but a different kernel driver might be able to do some good there.