Glo Kobo Night Mode

[akorx]

Originally Posted by davidfor

There are two light related bugs in the 3.0.0 firmware.

Firstly, if the light level is set to 1, the light does not turn on when the button is pressed. The icon is shown and when pressed, the light level control is shown. When the level is changed, the light comes on.

The second bug is in the light control. When the level is set to a value less than 10, when the control is closed, it stores the value "1".

To workaround these problems, you can edit the file "Kobo eReader.conf" and set the value there. If you set it to 2 or higher, the light will come on. And as long as you do not open the light level control, it will not change. As soon as you open the control, the value will get changed. It happens whether you make a change or not.

Great thanks for the explanation davidfor, now it's clear for me ! I hope next FW will correct thoose 2 bugs.

[jamalau]

Hallo, awesome patch, but is it possible to make this patch for the Aura 6`` ?

[timwillhack]

Hallo, awesome patch, but is it possible to make this patch for the Aura 6`` ?

jamalau, I have an aura and it does not currently work for it. I think its because the aura (non hd) has new code to update its pages. On another thread someone asked me to provide a portion of the firmware so they could review the differences. Its unrelated to this mod however (the other thread was in relation to backing up and recovering firmware) I have tried to contact people about nite mode and possibly helping get it rolling on the Aura but have not heard back from anyone yet. I'm so dying to make this happen I've been trying my hardest to get it compiling on my computer but just don't have the chops at the moment to figure out how to get it to work.

[jiminrussell]

Originally Posted by jamalau

Hallo, awesome patch, but is it possible to make this patch for the Aura 6`` ?

You could try running cool reader by installing kobolauncher. Cool reader has the ability to inverse the screen and you can also setup a tap zone to toggle between the two views. Just another option for you if you want to have white text on a black background.

[yoq]

Finally got around to looking into the new kernel source / display driver for the new Aura, and it looks like a case of lazy programmer:

drivers/video/mxc/mxc_epdc_fb.c, Line 2427:

/* TODO: Support REAGL LUT lookup in conjunction with other LUT
 * transformations.  This code just overwrites other LUT options. */
if (bufPixFormat==EPDC_FORMAT_BUF_PIXEL_FORMAT_P5N) {
	GALLEN_DBGLOCAL_RUNLOG(24);
	fb_data->pxp_conf.proc_data.lut_transform |= PXP_LUT_AA;
}

So apparently they broke support for a unused feature when they implemented their new Regal technology. I suspect this could be fixed in drivers/dma/pxp/pxp_dma.c, Function: static void pxp_set_lut(struct pxps *pxp)
But who would want to flash a new kernel for that? Another way I can think of, would be to create a kernel module that contains the updated function, looks for the old one and rewrites a few addresses on-the-fly. Not exactly pretty either.

Edit: Or we go the resource intensive way and manually invert every redraw request that comes along.

@jiminrussell: Does invert work for Cool Reader on the new Aura?

[jiminrussell]

Originally Posted by yoq

@jiminrussell: Does invert work for Cool Reader on the new Aura?

Yes invert works on the new Aura using Cool Reader

[timwillhack]

You could try running cool reader by installing kobolauncher. Cool reader has the ability to inverse the screen

I tried version 1.2.6.23 out on the Aura (non-hd) and it works great. and does let me finally invert on the Aura! I will admit the menus are not amazing but get the job done. Swiping doesn't seem to work and the footer doesn't have options in the list (unlike the header) but I prefer nothing in the margins. I can't seem to find a way to figure out where you are at percentage wise though without turning on the header or bookmarking and then looking at the bookmarks. Any suggestions? I know I'm picky. I will post this in the kobolauncher post as well: https://www.mobileread.com/forums/sho...d.php?t=201632

But will leave this post here for people reading this forum looking for a solution to inverting their Aura screen.

[jiminrussell]

Originally Posted by timwillhack

I tried version 1.2.6.23 out on the Aura (non-hd) and it works great. and does let me finally invert on the Aura! I will admit the menus are not amazing but get the job done. Swiping doesn't seem to work...

Swipping has been added as of 1.2.6.24 (left to right, right to left, top to bottom and bottom to top and you can set each to do one of 29 different commands, including of course page forward and back (called page up and down in coolreader)

Originally Posted by timwillhack

... I can't seem to find a way to figure out where you are at percentage wise though without turning on the header or bookmarking and then looking at the bookmarks. Any suggestions? I know I'm picky.

Just change one of the tap zones to be for "position" then tap on it and it shows you the percentage you are at in the book along with a scroll bar to move elsewhere in the book, just cancel to go back to where you were.

[RobertJSawyer]

Anyone tried this yet on a Kobo Glo with 3.1.0 firmware?

[PeterT]

@RobertJSawyer: It seems to work; but I will admit I have never installed it before, but I DO see the screen invert on a long press of the light switch.

[RobertJSawyer]

Originally Posted by PeterT

@RobertJSawyer: It seems to work; but I will admit I have never installed it before, but I DO see the screen invert on a long press of the light switch.

Thanks, Peter! Before I saw your reply, I got brave and decided to try installing it myself. It works just fine; precisely as with previous firmware. I love this hack and SO wish Kobo would make it an officially supported feature; it's something that Kindle doesn't offer, and it makes a world of difference in comfort when reading at night.

[PeterT]

Reading the description and thinking outside the box a bit, I think one could also launch the supplied "nightmode.sh" script via the filemon patch; all that would be needed would be the addition of a new PNG for NightMode, followed by the addition of a new script similar to

$root/.kobo/fmon/fmon $root/nightmode.png $root/.kobo/nightmode.sh >> $root/.kobo/fmon/fmon.log.txt 2>&1 &

[imkh]

Originally Posted by PeterT

Reading the description and thinking outside the box a bit, I think one could also launch the supplied "nightmode.sh" script via the filemon patch; all that would be needed would be the addition of a new PNG for NightMode, followed by the addition of a new script similar to

$root/.kobo/fmon/fmon $root/nightmode.png $root/.kobo/nightmode.sh >> $root/.kobo/fmon/fmon.log.txt 2>&1 &

I'm a total newbie at all this - I've had a Touch for a year and just bought an AuraHD. So the last few days I've been experimenting with adding nightmode on Touch and AuraHD, it works as described with the long depression of the light switch on the AuraHD but I got interesting results on the Touch. First I got it working with KoLauncher, but decided I really didn't want a lot of the other utilities, so tried just fmon and it worked just fine from the icon with a script identical to the above.

Then yesterday after doing a factory reset of the Touch and sideloading 3.0.1 I reinstated nightmode by itself and by accident found that doing a longer depression of the home button will toggle nightmode! (just like longer depression of the light switch works on the AuraHD!) No need for the icon or fmon loading or anything except installing nightmode script itself.

Nice serendipity, but I don't have the knowhow to work out why!

[yoq]

Next try for the Aura: Inverting done in software, due to the kernel bug.
Please test first with the debug build and post the log. If it works, install the version with logging disabled, from "testBuild.zip".
I'll create a create full version later, so that the mod figures out itself on what model it is running. This one is only for the (NonHD) Aura.

@imkh: it's a lot more fun finding out about it yourself, but i actually added that a while ago, check the first post ^^

[coolloser]

Originally Posted by yoq

Next try for the Aura: Inverting done in software, due to the kernel bug.
Please test first with the debug build and post the log. If it works, install the version with logging disabled, from "testBuild.zip".
I'll create a create full version later, so that the mod figures out itself on what model it is running. This one is only for the (NonHD) Aura.

@imkh: it's a lot more fun finding out about it yourself, but i actually added that a while ago, check the first post ^^

Success! Was very happy seeing that screen invert.

Log says:
ScreenInverter: Hooked to /usr/local/Kobo/nickel!
ScreenInverter: Removed LD_PRELOAD!
ScreenInverter: Got screen resolution: 1024x758 @16BPP
ScreenInverter: Read config: invert(no), retain(yes), longPressTimeout(800), nightRefresh(0)
ScreenInverter: update: type:full, flags:0x0, size:1024x758 (100% updated)
ScreenInverter: Toggled using button
ScreenInverter: update: typeartial, flags:0x0, size:46x56 (0% updated)
ScreenInverter: Toggled using button