yashsingh1/xdaforums huggingface dataset:
[Nexus 4 General] Kel Ghu:
These settings are horrible on my device. Grays saturates so much it becomes really green. RGB gamma at 1.6. It has some sort of yellow hue and blacks are bad.

Have you guys identified the different screens? It's time we do that.
[Nexus 4 General] Double-UA:
Anyone please? I want to get a Kernel tool and would like to know which one is the best. Thank you!
[Nexus 4 General] michaelop:
Thumbs up for the first one, maybe a little dark but I get 2.2 RGB with this values too. The second one produces noticeable banding (can be seen in Display Tester)

@Ngo93 You should add a column for the production date and/or HW_rev, as displays produced in November may require different settings than the ones produced now. The settings of Kel Ghu work good with 301K rev 11.
[Nexus 4 General] ralph78:
I lost the functionality in FauxClock after applying 4.2.2 update. I can only change RGB but the gamma settings are gone now. Is it just me ?

I`m on stock ROM only unlocked bootloader and rooted.
[Nexus 4 General] Hereisphilly:
Does anyone know any way to convert Franco's values for use with faux display? Loads of new values are appearing and I don't want to change kernel to try them
[Nexus 4 General] fredcorp6:
+1

The update must contain a new kernel that the FauxClock app does not yet support.
[Nexus 4 General] ralph78:
Ok I just wait then for a Google Play update. I kinda miss the colours from 4.2.1:crying:
[Nexus 4 General] fatum2002:
Guys, I didn't find any information in the thread if these apps allows to fix gray vertical bars (artifacts) visible on gray background?

I've installed fauxdisplay app, but i'm not sure how it should work - do I need to set the values in all tab and then on/off the screen or i have to do it in each tab?

When i try to change one of the gamma fine settings it keeps reseting to 0 when i return to it from another tab or range. How to solve it?

I have rooted stock kernel and superSU installed.
[Nexus 4 General] SGS_elko:
AW: Nexus 4 Color Settings [spreadsheet]

Has anyone noticed better colors on 4.2.2? On my device the colors are now very good on 4.2.2 :). The first thing i've noticed after boozing up are the beautiful collors. Thats goooood.

Hw-rew 11, 301K, all stock!
[Nexus 4 General] Kel Ghu:
But the second setting has better Black and White saturations also noticeable in Display Tester. We can see all the squares. I have been trying to balance between the twos and found a refined setting for people with the same screen as mine.

No banding, excellent black/white saturation and RGB gamma at 2.2, 212K rev.11:

RGB 255

Whites 97

Mids 64

Blacks 255

Contrast 255

Brightness 0

Saturation 206

Grays 0
[Nexus 4 General] 8BitVoxel:
Is this true, can anyone else who has updated to 4.2.2, stock kernel notice any improvement in colors. FauxClock etc will no longer have Gamma setting on 4.2.2 as the kernel is now locked. CUSTOM kernel now required accounting to faux123 twitter. So before I update to 4.2.2 I'd like to know if there truly is any improvement to stock colors?
[Nexus 4 General] faux123:
There was ZERO changes to the STOCK colors for 4.2.2 :( IT IS still the same old Google Profile colors.
[Nexus 4 General] meangreenie:
Thx google, our screens are still jaundiced.

Do you need us to all 'pitch in' to pay for someone to do it for you ? .a..e.s
[Nexus 4 General] 8BitVoxel:
Thanks faux, now wondering what I should do... Will your kernel r5 work on 4.2.2... or just wait for a new build on newer source?

Hope your wife is doing well BTW.
[Nexus 4 General] faux123:
There will be a 4.2.2 kernel soon...

My wife is slowly recovering... thanks for all the well wishes. (Still at the hospital)...
[Nexus 4 General] ziggy34:
Take your time, your wife is far more important. Hope she gets well soon.
[Nexus 4 General] Kel Ghu:
For people that want to know a little bit about my experience with gamma using Display Tester and Franco's kernel:

- Whites (or highlights): You want as little of this as possible. Raising it will help with black saturation balance, but will blend white end-levels together (254 and lower). But it behaves weirdly. 95 to 96 is a big step up, whereas 127 to 128 is a huge step down. Even weirder, 95 and 96 are brighter than 128. Bits values like 64, 96, 128, etc are special in my experience.

- Mids (or gamma): Mids will rapidly create color banding. You want to minimize this as much as possible.

- Blacks (or shadows): Blacks are the main weakness of a backlit screen. You want to max this setting.

- Contrasts: This one should be max'ed too. We want to use the full dynamic range of the screen.

- Brightness: This only make everything brighter and should only be used to fine tune the screen if it's not bright enough for you. But it will of course shift gamma. You want this at zero or close to it as much as possible.

- Saturations: Too much or not enough saturation will create color banding. It also accentuate black and whites levels and blend them together. You will have to find the ideal setting according to whites, mids, blacks and contrast.

- Grays: Extremely delicate to use on our screens. It creates color banding really fast (color banding test). It saturates also very quickly where gray objects become green (gray gamma test). It also saturates all the other colors beyond use (contrast test). but it helps a lot for white balance. Though, you want this at zero if possible or close to it.

I guess this may be different with other screens. Franco's code allows much better tuning but no individual RGB gamma.
[Nexus 4 General] resynx:
Added :good:

Sorry but I see no reason to add in a HW_rev line. Every screen is different whether you're on rev_10 or rev_11 and so is each set of eyes. It would be different if there was a drastic difference between each HW_rev but there's not. There's just the normal variance of phone to phone, regardless of HW_rev. Now if you want to include it in your comments just let me know and I will add it along.

What's your brightness setting?
[Nexus 4 General] Kel Ghu:
50% brightness

No way to determine screen revision?

Different pairs of eyes can't change measurements of gamma or banding. Only colors temperature. Still, it would be interesting to see how many different screens there are in the wild.
[Nexus 4 General] resynx:
I meant gamma brightness, did you just leave that out intentionally or is it just blank / 0?
[Nexus 4 General] Kel Ghu:
Oh sorry.

Brightness 0
[Nexus 4 General] george241312:
Ok so i got faux's 72 kernel and the app from the play store but i can only modify Color Temp it does not give me anymore settings like it used to .. cyanogenmod feb 12 nightly ..any1 halp ?
[Nexus 4 General] Ok_Kaleidoscope5109:
So the Halfbreed settings are as follows?

white: 64

mids: 68

black: 118

contrast: 25

brightness 4

saturation: 66

grays 32
[Nexus 4 General] kwerdenker:
72 sounds more like francos versioning than fauxs. If you have bought fauxs app but use francos kernel, that won't work. Both use different interfaces for gamma and so they are not compatible to each other. You will have to switch either one.

Sent from my secret moonbase via space carrier pigeons
[Nexus 4 General] fatum2002:
Guys, could you help me?

I have: 4.2.1 ROM, root, FauxDisplay installed, superSU.

Whenever i try to change settings in one of the gamma tabs they are reset to 0.

Do you know how to solve it?
[Nexus 4 General] 0.0:
Did you update fauxdisplay to the latest?

Sent from my Nexus 4
[Nexus 4 General] fatum2002:
Yes, i have the latest version - it was updated yesterday.

Do you want to say that when you change gamma\gradient settings they are not reset to 0 when you go to some other tab and then return back?

I also noticed that very often (70%) when i run the program i get only three first tabs. I need to run it many times to get the others.

The app has been bought from GP store.
[Nexus 4 General] 0.0:
i have no clue...sorry :(
[Nexus 4 General] danslecarton:
You have to install a custom kernel to be able to change gamma settings
[Nexus 4 General] fatum2002:
It says that i can use stock rooted kernel. And I'm on 4.2.1.
[Nexus 4 General] jdrials:
So I've been adjusting the colors compulsively for the last few days and have found my sweet spot.

I must preface by saying that the majority of the settings on the spreadsheet were pretty far off for me. Maybe my screen was really whack?!?

Anywho, without further ado:

RGB - 255

Blacks - 230

Grays - 12

Mids - 75

Whites - 0

Brightness - 0

Contrast - 0

Saturation - 255

I'm using Rasbean + Trinity, and on my phone these work at any brightness including system auto...

Post script - I adjusted these by eye using 100s of pictures... After I found what I liked, I downloaded Display Tester and am surprisingly close to the 2.2 mark....

Tell me what you think.
[Nexus 4 General] Guto ViP:
I wanna test but im using Faux Display.

Enviado de meu Nexus 4 usando o Tapatalk 2
[Nexus 4 General] wilsonlam97:
I agree with you. They must of done some changes with the colours.
[Nexus 4 General] Chad_Petree:
I think the colors look better now too , maybe is a placebo effect ? :o
[Nexus 4 General] yethz:
I think it isnt placebo... ive noticed it also and compared to my s3 before and after. I think its on the update. Or it is placebo indeed :p
[Nexus 4 General] resynx:
Added :good:

I've also translated some of Mole's kernel colors over into the Gamma sheet ^^

Enjoy! :victory:
[Nexus 4 General] willybarca:
I think you should make a rating section or something.. Since the list is getting so big so people can use the settings with good ratings
[Nexus 4 General] JohnnyZNN:
These are perfect for my N4 :good:
[Nexus 4 General] meangreenie:
4.2.2 colours are improved imo, slightly pastie still (@1.9) but they are better balanced, clearer.

I know faux123 said the code is the same earlier, but I cannot ignore what my eyes are telling me. Maybe there's new code in there somewhere...shrugs
[Nexus 4 General] TheNikkoMan:
If you look in the kernel source for 4.2.2, there is a commit modifying the colours. I think the commit description said that they've removed banding, cut back on blue and improved yellow and red or something like that.

So in other words, 4.2.2 colours ARE changed from 4.2.1, and I think they're great now.
[Nexus 4 General] Chad_Petree:
You can see there's still banding on the dialer :(
[Nexus 4 General] meangreenie:
The diagonal stripes? There are supposed to be there.

Check the same on play store top banner, same on every phone I've looked at.
[Nexus 4 General] Chad_Petree:
No,no check the blue background on the call log on you will see what I mean :(
[Nexus 4 General] meangreenie:
Oh yeah I can see that now.

Weird because in the banding test of display tester it does well.
[Nexus 4 General] richteralan:
Seems 4.2.2 Kernel changed Gamma somehow. I recalibrated under 100% brightness. Suitable for all brightness levels.

This setting gives me least banding, RGB Gamma @ 2.0, Grey Gamma is higher @ 2.4~2.6

You can adjust the RGB color value if you think it's too yellowish. They don't affect Gamma.

R: 255

G: 253

B: 249

Whites: 0

Mids: 21

Black: 96

Contrast: 16

Brightness: 0

Saturation: 80

Grays: 16

Warning: ONLY for 4.2.2 Kernels.
[Nexus 4 General] Eltocliousus:
What program are you using to change the white/mids/blacks/contrast etc, I was using Faux123 on 4.2.1 stock but now in 4.2.2 with Faux123 I can't adjust gamma, I don't want to reflash my kernel :(.
[Nexus 4 General] kwerdenker:
Just to clear this up: do you mean you use faux's apps to change the color on the stock kernel or do you also use his kernels?

If you use stock kernel, you are out of luck. Google removed the possibility to load modules in the 4.2.2 stock kernel so it can no longer be modified (LINK to faux's post). If you still want to stay on a "stock" kernel, you could use his "enhanced stock" series of kernel.

If you are using his kernel already, you should update to the latest beta 006b9, which is based on the new 4.2.2 sources.

LINK to faux's download links of the new kernel versions.
[Nexus 4 General] jdrials:
So I upped the mids to 90 and will stick with it now... Perfect settings for my screen
[Nexus 4 General] nbeebe24:
I got a chance to play with the values a little bit and have come up with something very close to 2.2 across the board.

Here they are:

RGB: 255

Whites: 2

Mids: 22

Blacks: 255

Contrast: 22

Brightness: 1

Saturation: 0

Grays: 17

This is on francos 4.2.2 kernel.
[Nexus 4 General] penzoilguy:
Thanks Man!!!
[Nexus 4 General] faux123:
FauxDisplay users, check out my recommended settings :D

Really POP colors for FauxDisplay users :D almost 2.2 across :D

Color:

255	255	255

Gamma Amp 0:

31	31	31

Gamma Amp 1:

0	0	0

Gamma Fine:

2	2	2

7	7	7

1	1	1

5	5	5

6	6	6

7	7	7

Gamma Gradient:

0	0	0

2	2	2

0	0	0

2	2	2

2	2	2

0	0	0

3	3	3

Already added to the spreadsheet ;) Enjoy!
[Nexus 4 General] Ok_Kaleidoscope5109:
nm
[Nexus 4 General] DirkBelig:
Whoa, not good at all for me. I bought FauxDisplay last night and set it up with the 006b9 (which is now 007b1, right?) and used the settings from line #2. I was looking at the spreadsheet on my Nexus 7 and when I saw the gradient cells were blank, I didn't scroll all the way over to see that it was the LG Presets. I thought those looked pretty good and accurate with my gallery of photos that I check settings against due to my familiarity with their look. However, these settings aren't vivid; they're a mess with way too much hyping in the reds and oranges and highlight areas in skin nearly blowing out and looking flat. I reverted immediately.

If I may make a couple of requests/suggestions:

1. Can you make it so we can have multiple save slots for settings?

2. Could you please fix the bug that makes direct entry of values via keypad so difficult? If we tab from field to field with the next key, it should either highlight the whole field so we can just type in the number or place the cursor at the end so we can backspace.

3. A comprehensive help file either in app or as a link to a page would be good. Linking to the XDA thread can be insufficient because I've seen instructions as posts within the hundreds/thousands of replies that weren't in the OP. The #1 reason the same questions get re-asked is a combination of people not reading the OP and/or the OP not being super clear. Like on your kernel thread, the OP is full of different type sizes/colors/boldness but the reset kernel links are so downplayed, they're easy to miss and understand what they do.

3b. A description of what all these gamma amp/gray scale/gradient scale/top half/bottom half/hokey pokey settings do to affect the image output. Between having just little postage stamp-sized test patterns and having everything but RGB settings require a screen off/on cycle makes it hard to tell what's happening. If there was a way to import a test image of our choosing so we don't have to toggle into an image viewer to see what effect the settings are having, that'd really help.

In Adobe Lightroom, the user can see in real-time what's happening when sliders are adjusted. I get that limitations within Android must be preventing this, but can you imagine how cumbersome it would be to edit photos under the constraints of the Android setup? Yikes!

Thanks.
[Nexus 4 General] faux123:
I will be adding more and more descriptions... just that right now due to my wife's medical situation, I can only squeeze a little time here and there to do things. I was about to post a chart detailing various settings in fauxdisplay.
[Nexus 4 General] Stryder5:
That would be awesome. Definitely take care of your wife first. Our displays can wait :)
[Nexus 4 General] wilsonlam97:
So it's not the placebo effect right? :laugh:

Otherwise I would've felt like a complete idiot.
[Nexus 4 General] faux123:
Here you go:

Here's the Detailed IPS LCD controls and its relationship to Gamma Grey Scale generation:

https://plus.google.com/u/0/109078966818501160423/posts/JD6uwscqtS8

Enjoy!
[Nexus 4 General] brandon.dowling:
Those are great for me! Perfect, thank you!
[Nexus 4 General] resynx:
It's been there to the right of the comments section, it's just that no one uses it. If you want to +1 a certain line just say it here and I will add it in.

Thanks guys, added :good:

Will add to the OP.
[Nexus 4 General] ralph78:
Odp: Nexus 4 Color Settings [spreadsheet]

Will you be ever able to add gamma settings and full functionality to your app so we could use it with 4.2.2 stock kernel?

Sent from Nexus 4 using TT.
[Nexus 4 General] Ok_Kaleidoscope5109:
I believe the issue is that Google disabled the injection of modules with the new 4.2.2 kernel. So you need a custom kernel in order to change color settings...
[Nexus 4 General] rosswaa:
Anyone got any recommendation for 4.2.2 running Francos 72?
[Nexus 4 General] daglesj:
I had a play around with this after I rooted my Nexus and to be honest I found the default settings the best for me. Certainly the most neutral.

Shortest time I have ever had a paid app installed!:crying::D
[Nexus 4 General] richteralan:
Some additional info regarding kernel/ROM version:

Calibrated on Franco Kernel v80, now running v82 without problems.

ROM is AOSPA newest nightly, 15FEB2013.

App is Franco Kernel updater.

---------- Post added at 12:45 PM ---------- Previous post was at 12:44 PM ----------

I had a setting for that but I lost it.
[Nexus 4 General] rosswaa:
Im On 82 and this is pretty nice. Good blacks and contrast is pretty good. Much better than standard

Thanks
[Nexus 4 General] resynx:
Grays and Whites columns have been switched due to Franco's new order in his app, don't get mixed up when inputing them ;)
[Nexus 4 General] Raphael17:
How Do I Input These Colors without an App?

Is there a way to put these calibrations in without a dedicated app like Faux or Franco? Can we do it in terminal emulator? If so how?
[Nexus 4 General] eep2378:
Yes you can. You can do it with terminal also with init.d script if your ROM/kernel supports it. Search this thread, its here :D
[Nexus 4 General] richteralan:
Yes. And I do suggest people recalibrate after 4.2.2 update.

I found noticeable differences.
[Nexus 4 General] milenko11:
These are way off for me. :(

Man I wish I could make the colors pop with this display. It's my only hangup with this phone.
[Nexus 4 General] faux123:
That's the problem with hardware. Not all of them are created equal :( I have feedback from a few users saying the colors pop, but a few like yourself experienced something different. You can take my settings as baseline and play with it a bit. Maybe your are close but just a few minor tweaks.
[Nexus 4 General] Kajover:
deleted
[Nexus 4 General] milenko11:
I don't know what I'm doing to get these colors right. Why doesn't lg have this thing configured right out of the box? I hate to admit I miss the fake colors of my Note 2.
[Nexus 4 General] kwerdenker:
faux, I saw your post on g+ concerning how the different settings factor into the grey values. While this is very interesting, it's missing one crucial point: how do the numbers you set actually influence the values. Are these multiplier, divisors, etc.? Do they increase or decrease the resulting gamma curve? Stuff like that.

Do you have any sources I could read up on (your code, sites about gamma curves, datasheets for LGs panels used in the N4, something like that) to get a better understanding on what's happening here? I would really appreciate it :)

P.S.: Best wishes to you and your wife. I hope she has a speedy recovery.
[Nexus 4 General] fatum2002:
FauxDisplay still doesn't work well for me (( I re-installed it with clearing a cache, but now when i run it "blu" is set to 31 while red and green to 0. So i cannot modify anything because of this - if i change other colors it gets only worse (like all blue). And I still haven't received 4.2.2 update - so cannot check if the colors became better.
[Nexus 4 General] faux123:
Hit restore lg preset, then start tweaking. Google preset has funny blue tint to it as you have seen. Also check out my setting from the spread sheet
[Nexus 4 General] milenko11:
I reboot and I lose my settings. Is fauxclock conflicting with the display app?
[Nexus 4 General] faux123:
No, when display app is running fauxclock's gamma is not active. Make sure you have set on boot enabled on the display app.
[Nexus 4 General] faux123:
Think of each control as a guitar string. When you increase each value, you are pulling the string. The middle controls (gray scale and gradient top/bottom) will have less effect because the strings pulled by them is more localized to their local regions. The amp 0/1 and gradient upper and lower have more influence because they are near the ends and when you pull on them they have wider effects.

My original decision to bring gamma control for fauxclock with only amp 0/1 is because they are much more intuitive to use and their effects are much wider. The gray scale and gradient top/bottom controls have much less overall effect and much more difficult to adjust. Fauxdisplay is not for the feint of heart and it's the main reason I made it separate app and tailored for advanced tweakers and users.
[Nexus 4 General] resynx:
Loving visceral's line #8 in the Gamma sheet, pictures look better on my phone than on my computer! :D
[Nexus 4 General] acc3d:
Faux,

Thanks for the explanation and chart! The guitar string analogy is an interesting way of visualizing the controls. I took a bit of time to tweak the explanation chart you created to better visualize the regions of influence. Is my new chart correct? Also, I noticed that gradient lower and gradient upper seem to have their labels reversed (functionality is as expected in FauxDsiplay).

On my device, the settings below (in FauxDisplay) produce a perfectly linear white-to-black gradient with punchy colors. The only problems remaining are the crushed whites/blacks in regions 0/7 and overall green tint. I haven't worked on eliminating the green for now, just trying to perfect the gamma gradient.

RGB: 255, 255, 255

Gamma Amp 0: 31, 31, 31

Gamma Amp 1: 0, 0, 0

Grey 08-15: 0,0,0

Grey 16-23: 0,0,0

Grey 24-31: 0,0,0

Grey 32-39: 7,7,7

Grey 40-47: 7,7,7

Grey 48-55: 7,7,7

Grad Lower: 7,7,7

Grad Upper: 7,7,7

Grad Top Half 1: 7,7,7

Grad Top Half 2: 7,7,7

Grad Mid Point: 7,7,7

Grad Bottom Half 1: 7,7,7

Grad Bottom Half 2: 7,7,7

Any thoughts on how to eliminate the crushed whites/blacks in regions 0/7? I've also attached a white-to-black gradient for testing purposes.
[Nexus 4 General] faux123:
Yes, that's VERY GOOD with the shaded regions... that's exactly what I was talking about with the guitar string analogy :highfive::victory:
[Nexus 4 General] Stefan1980:
Im just at 255.255.255 with the trinity kernel. Dont know what was done with the colors, but after flashing the trinity kernel, the contrast is up, a it seems a bit darkish. But its pretty good.
[Nexus 4 General] faux123:
Here's another FauxDisplay settings. It's dimmer but still has very good vivid and accurate colors :D

Color:

178	178	178

Gamma Amp 0:

0	0	0

Gamma Amp 1:

0	0	0

Gamma Gray Scale:

0	0	0

0	0	0

4	4	4

6	6	6

6	6	6

7	7	7

Gamma Gradient:

0	0	0

0	0	0

0	0	0

3	3	3

2	2	2

0	0	0

3	3	3

Almost 2.2 across the board except purple still @ 2.0	2/17/2013
[Nexus 4 General] droidmeup:
Looks very nice on mine :)

Sent from my Nexus 4
[Nexus 4 General] Dovucoe:
Just to clarify - stock rooted kernel no longer works right? Due to modules being disabled?

If that's the case, what kernel do you guys recommend? Looking for something with stability as the main concern I guess. Or does someone have a stock kernel that's compiled to support modules?
[Nexus 4 General] resynx:
I believe so. I can vouch for Franco and Faux kernels, they both have great kernels and I am always switching between the 2 :good:
[Nexus 4 General] figuremania:
I've been using visceralpsyche's v2 color setting on franco.kernel.. but since the latest update on the kernel updater (8.7.1) the exact setting I've been using started look strange. :(

I played with setting for bit...

r:217

g:195

b:173

grays: 0

mids: 150

blacks: 180

contrast: 0

brightness: 0

saturation: 4

whites: 0

might have to change it further once smarter guys figure out the real limits on values but for now I'm satisfied with it.