Glo Kobo Night Mode - Page 15

akorx · 09-13-2013, 05:09 PM

Hi Yoq,

I've noticed that the life of battery is very increased (maybe the reason is the fact that screen is refreshed only every 90 pages turned). I've read 15h and my battery is again at 96% (yet I read with LED on) !!!

Have you seen the same thing

?

I've added a comment about your add-on here : https://www.mobileread.com/forums/sho...50#post2623150

KevinShort · 09-13-2013, 09:44 PM

I haven't used night mode enough to comment on battery life, but it'd be an interesting thing to test. My guess is that the increased battery life is because of the low number of full page refreshes.

akorx · 09-21-2013, 05:19 AM

Hi,

I've no measurement/metric (I don't know the good word, please tell me which is the good term) but I really think that refresh screen every 6 pages consumes more energy than using light with leds... And with "every 90 pages settings" we have got the contrary. Perhaps it's because I've added a 33 ohm resistor

!

NB : sorry for this sentence, I don't know how explain it in a good english !

demondog · 09-22-2013, 06:02 AM

Quote:

Originally Posted by akorx

Hi,

I've no measurement/metric (I don't know the good word, please tell me which is the good term) but I really think that refresh screen every 6 pages consumes more energy than using light with leds... And with "every 90 pages settings" we have got the contrary. Perhaps it's because I've added a 33 ohm resistor

!

NB : sorry for this sentence, I don't know how explain it in a good english !

hi what is 33 ohm resistor?

also i dont know how to do this of refresch screen at 90 pages, i just installed the night mode , but dont know what i have to install to do the rest, can someone explain please? thankyou

yoq · 09-22-2013, 05:59 PM

He is talking about a hardware hack to lower the brightness of the Kobo Glo which I posted a few months ago: See here
To change the refresh rate in daymode, see here, to change it in nightmode, edit the value of refreshScreenPages in nightmode.ini.

@akorx:
These screens draw a lot of power (~1.5W, much more than a LCD screen of this size) during update, but use almost nothing in standby. So it makes sense that the battery lasts longer when you aren't using full refreshes, since these take roughly 2-3 times longer than normal screen updates. The hardware hack should be battery neutral, but I haven't measured it yet.

mobenm · 10-09-2013, 07:08 AM

Hello, i've just bought a kobo aura (not hd).
I've installed koboroot.tgz.
After reboot i push the light button and nothing happens.
Is it normal? Does it work on kobo aura?
Can i do something?
Thanks for your answer and sorry for my English( I'm french)

meeera · 10-09-2013, 07:40 AM

What firmware was the new Aura running? I'm guessing this isn't suited to it. Bear in mind that when this thread started, "Aura" meant "Aura HD", not the new Aura, so you must read the thread with that in mind. Most people saying "Aura" here don't mean your device.

If it is suited to it: where did you install the koboroot.tgz file? Did you get the "upgrading" screen?

mobenm · 10-09-2013, 07:44 AM

Hello, i try to put the night mode. My firmware is the last for kobo aura (2.9), from kobo (By wifi)
The problem: the night mode doesn't work
Thanks

mobenm · 10-09-2013, 07:45 AM

The file koboroot.tgz is the build9

meeera · 10-09-2013, 07:48 AM

Quote:

Originally Posted by mobenm

The file koboroot.tgz is the build9

At the github link, it says:

Quote:

A tiny hack to read white-on-black on Kobo ebook readers. Works only on the eInk series:

Kobo Glo
Kobo Touch
Kobo Aura HD
Kobo Mini

Your device isn't listed.

linux1999 · 10-09-2013, 08:10 AM

Same here, it doesn't work on Aura (non HD). Let's hope for an update soon... meanwhile I'll keep using the Glo ;-)

mobenm · 10-09-2013, 11:37 AM

I know that the aura isn't in the list but i hope it could work.
Thanks for your reply.

yoq · 10-10-2013, 04:21 PM

I don't know much about the device and I haven't seen a firmware update file so far, plus I only own a Glo, so you'll have to help me here a litte to find out what the problem is

Do you already have shell access on your device?

Yes:

Does the file /tmp/invertScreen exist?
Does the command "echo t > /tmp/invertScreen" trigger nightmode?

If so, the only problem is the new address of the LIGHT button. Please run the command: "hexdump /dev/input/event0", press the light-button twice and post the output.

No:

Install the debug version in the attachment
Press the LIGHT button twice
Connect to your PC
Post the content of the file .kobo/screenInvertLog

linux1999 · 10-11-2013, 05:53 AM

No shell access.

Here it is the log from the debug build:

ScreenInverter: Hooked to /usr/local/Kobo/nickel!
ScreenInverter: Removed LD_PRELOAD!
ScreenInverter: Got screen resolution: 1024x758
ScreenInverter: Read config: invert(no), retain(yes), longPressTimeout(800), nightRefresh(4)
ScreenInverter: pressed(0) keycode(5a)
ScreenInverter: pressed(1) keycode(5a)
ScreenInverter: pressed(0) keycode(5a)

yoq · 10-11-2013, 03:19 PM

Ok, so the button hasn't changed. I looked into the kernel source today and I think I found something. Could you please post the log after you long-press the button with the debug build from my last post?
Attached is a new try with, could you test and post the log as well?

09-13-2013, 05:09 PM	#211
akorx Addict Posts: 336 Karma: 59242 Join Date: Apr 2013 Location: France, languages : french and a little bit english. Device: Kobo Glo, Aura HD	Hi Yoq, I've noticed that the life of battery is very increased (maybe the reason is the fact that screen is refreshed only every 90 pages turned). I've read 15h and my battery is again at 96% (yet I read with LED on) !!! Have you seen the same thing ? I've added a comment about your add-on here : https://www.mobileread.com/forums/sho...50#post2623150 Last edited by akorx; 09-14-2013 at 05:04 AM.

09-21-2013, 05:19 AM	#213
akorx Addict Posts: 336 Karma: 59242 Join Date: Apr 2013 Location: France, languages : french and a little bit english. Device: Kobo Glo, Aura HD	Hi, I've no measurement/metric (I don't know the good word, please tell me which is the good term) but I really think that refresh screen every 6 pages consumes more energy than using light with leds... And with "every 90 pages settings" we have got the contrary. Perhaps it's because I've added a 33 ohm resistor ! NB : sorry for this sentence, I don't know how explain it in a good english ! Last edited by akorx; 09-22-2013 at 02:55 AM.

10-09-2013, 07:40 AM	#217
meeera Grand Sorcerer Posts: 5,658 Karma: 66417824 Join Date: Dec 2011 Location: Australia Device: Kobo Libra 2, iPadMini4, iPad4, MBP; support other Kobo/Kindles	What firmware was the new Aura running? I'm guessing this isn't suited to it. Bear in mind that when this thread started, "Aura" meant "Aura HD", not the new Aura, so you must read the thread with that in mind. Most people saying "Aura" here don't mean your device. If it is suited to it: where did you install the koboroot.tgz file? Did you get the "upgrading" screen? Last edited by meeera; 10-09-2013 at 07:44 AM.

10-11-2013, 05:53 AM	#224
linux1999 Member Posts: 22 Karma: 15318 Join Date: Jul 2011 Device: Kobo Aura and Kobo Aura One	No shell access. Here it is the log from the debug build: ScreenInverter: Hooked to /usr/local/Kobo/nickel! ScreenInverter: Removed LD_PRELOAD! ScreenInverter: Got screen resolution: 1024x758 ScreenInverter: Read config: invert(no), retain(yes), longPressTimeout(800), nightRefresh(4) ScreenInverter: pressed(0) keycode(5a) ScreenInverter: pressed(1) keycode(5a) ScreenInverter: pressed(0) keycode(5a) Last edited by linux1999; 10-11-2013 at 06:16 AM.

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09-13-2013, 09:44 PM	#212
KevinShort Addict Posts: 348 Karma: 209937 Join Date: Jan 2012 Location: Virginia, US Device: Kobo Wifi, Kobo Glo	I haven't used night mode enough to comment on battery life, but it'd be an interesting thing to test. My guess is that the increased battery life is because of the low number of full page refreshes.

09-22-2013, 05:59 PM	#215
yoq Developer Posts: 77 Karma: 206176 Join Date: Apr 2013 Location: Europe Device: Kobo Glo	He is talking about a hardware hack to lower the brightness of the Kobo Glo which I posted a few months ago: See here To change the refresh rate in daymode, see here, to change it in nightmode, edit the value of refreshScreenPages in nightmode.ini. @akorx: These screens draw a lot of power (~1.5W, much more than a LCD screen of this size) during update, but use almost nothing in standby. So it makes sense that the battery lasts longer when you aren't using full refreshes, since these take roughly 2-3 times longer than normal screen updates. The hardware hack should be battery neutral, but I haven't measured it yet.

10-09-2013, 07:08 AM	#216
mobenm Junior Member Posts: 5 Karma: 10 Join Date: Nov 2012 Device: kobo glo	Hello, i've just bought a kobo aura (not hd). I've installed koboroot.tgz. After reboot i push the light button and nothing happens. Is it normal? Does it work on kobo aura? Can i do something? Thanks for your answer and sorry for my English( I'm french)

10-09-2013, 07:44 AM	#218
mobenm Junior Member Posts: 5 Karma: 10 Join Date: Nov 2012 Device: kobo glo	Hello, i try to put the night mode. My firmware is the last for kobo aura (2.9), from kobo (By wifi) The problem: the night mode doesn't work Thanks

10-09-2013, 07:45 AM	#219
mobenm Junior Member Posts: 5 Karma: 10 Join Date: Nov 2012 Device: kobo glo	The file koboroot.tgz is the build9

10-09-2013, 08:10 AM	#221
linux1999 Member Posts: 22 Karma: 15318 Join Date: Jul 2011 Device: Kobo Aura and Kobo Aura One	Same here, it doesn't work on Aura (non HD). Let's hope for an update soon... meanwhile I'll keep using the Glo ;-)

10-09-2013, 11:37 AM	#222
mobenm Junior Member Posts: 5 Karma: 10 Join Date: Nov 2012 Device: kobo glo	I know that the aura isn't in the list but i hope it could work. Thanks for your reply.

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