yashsingh1/xdaforums huggingface dataset:
[Nexus 5 Themes and Apps] magnamentis:
ok, let's see ???

hi there,

i'm very sorry to hear that because believe me, that's very very strange, so we have to find out

what could be the culprit.

be assured it's not he app, the app works flawlessly !!!

so i will mention below a few suggestions where you could possibly look at and/or what you could possibly do

to solve that probem, ok let's go:

a) do you have root access and do you have root granted to the app specifically ?

b) which kernel are you using, did you check that you have indeed franco or faux installed, i don't mean that

you did not install one of those but wanna make sure that all went well with the flash and/or that you flashed the kernel after the rom

and not before ?

c) do you have other root only apps causing similar issues or any issues which make us thing that somehting with root is wrong ?

d) did you check whether you have root access in terminal app by typing su+return and see whether this is what you see ( # ) and not this ( $ )

do that and PM me back ( use pm further on, so not to spam the thread ) if we found the culprit and find it worth to publish we can still

post the last ( successfull ) findings in the thread

i have to go to the aiport now to pick up my "better half" but will take care of the matter if not solved in the mean time after my return

in about 3+ hours.

good luck

Current Devices:

N7000, 4.1.2 Stock/TW

N7100, PacRom, 4.3.1, Pac Kernel

Nexus 4, PacRom, 4.3.1, Franco Kernel r199

I9100, OmniRom, 4.4.2, Gustavo_s CWM-Kernel, Xposed Framework

Nexus 5, Cataclysm ROM 4.4.2, Franco Kernel r24, Xposed Framework, Gamma 2.4<>2.5
[Nexus 5 Themes and Apps] UnknownzD:
Could you tell how did you get these gamma value? Or can someone tell me how can I get the gamma value from the device?

The only app that I have found from the market that provides a gamma test is the 'display test' application, but it doesn't give me readings / tests over different colours (CYMK spectrum) at all. How did you guys get the gamma value? Can someone tells me a proper way to get the reading? Need not to be very accurate, but should be enough for getting an approximate value.
[Nexus 5 Themes and Apps] shantu:
Its display tester app (free version, shows a 7 sec wait screen...once you are in, swipe to the left to get the display quality, 3rd from top is gamma detection. 1st screen gives the white score, swiping would give the rest :fingers-crossed:
[Nexus 5 Themes and Apps] UnknownzD:
Dude, you are missing one number for all settings in the last adjustment.

According to your delta value,

A 0 should be placed at the beginning for red.

A 84 should be placed at the beginning for green.

A 90 should be place at the beginning for blue.
[Nexus 5 Themes and Apps] 0rigin:
I used these settings because of the highest contrast ratio. I then dropped the white point to 31, which according to the display tester app, sets gamma value to a rough 2.2 or maybe a tad more. I think the screen looks way better. :) Thanks!
[Nexus 5 Themes and Apps] gpvecchi:
Could you please post an image of the calibrated RGB level curve? Thanks!
[Nexus 5 Themes and Apps] mag01:
[MENTION=4290580]UnknownzD[/MENTION]

Yes you're right, fixed that together with few other incorrect values - too much copy & paste between several files and tables made at various points. :D

[MENTION=5040003]0rigin[/MENTION]

Yes it's a good way to do it easily :good: - first perform partial adjustments to levels and then get the target gamma by adjusting the WP value Even though changing WP value leads to more color distortions, minor changes such as +/- 3 don't do much harm, but they're an easy way to adjust the gamma. Usually you need to just set 31 or 30 and that's fine.

[MENTION=4909585]gpvecchi[/MENTION]

Attached some, first two are with factory settings, next two are for the 'calibrated' setup but before adjusting for higher gamma.

It could be better, but adjusting the green level more is pretty tricky as various artifacts tend to appear easily. Also the relative drop of the red level near 100% gray is something hard to deal with (you can't get it higher, but when you try to get the <100% levels lower you lose a lot of the contrast ratio) - so I made some compromises here. It doesn't need to be perfect on such device, and the colorimeter is somewhat inaccurate anyway.
[Nexus 5 Themes and Apps] Higgsy:
Yes these settings are great:good:
[Nexus 5 Themes and Apps] tomciopaluch357:
Where do i changer these setting Gamma Color Brightness (row 2 column 5 of RGB Gamma tabs) => 0 is highest, 255 lowest

Red Gamma Positive => 100

Green Gamma Positive => 117

Blue Gamma Positive => 121

Red Gamma Negative => 107

Green Gamma Negative => 117

Blue Gamma Negative => 121

Overall White Point Brightness => 0 darkest, 255 brightest

Gamma white point, Column 1 => 30 I don't see it in N5 Gamma Calibration?
[Nexus 5 Themes and Apps] dbolot1:
Here are my new values to try:

Red negative and positive: 20, 5, 17, 27, 37, 46, 57, 73, 84, 102, 112, 121, 128, 123, 117, 106, 91, 78, 68, 62, 53, 28, 45

Blue and Green stock

Gamma: 28

Here are some results with my values:

first image is image with modified values and following image is image with stock values\

EDIT: all of the images were taken with DSLR with 1/60, f2.8, ISO 100, the images displayed are jpeg processed by camera.. I also took RAW, but too lazy right now to process them...
[Nexus 5 Themes and Apps] dbolot1:
here are some images comparing new and old values to ipad :)

first image is image with modified values and following image is image with stock values

I used Google Now since it has some gray areas and I had some problem with gray areas being having redish tint...

last image is an image of banding with modified values
[Nexus 5 Themes and Apps] Johnny424:
can't wait till profiles are possible. some of you guys have made very nice progress..
[Nexus 5 Themes and Apps] Chad_Petree:
Thank you thank you, now I'm not so jealous of the G2 screen like before :p, now I'm only missing the bigger battery but that's physically imposible :mad:
[Nexus 5 Themes and Apps] lyzanxia:
With the settings from mag01, you have to set the positive the same as the negative values?
[Nexus 5 Themes and Apps] impulse101:
Or you can reboot just once which also works

---------- Post added at 10:32 AM ---------- Previous post was at 10:28 AM ----------

Yep
[Nexus 5 Themes and Apps] fireproofrev:
Hi, here my settings for blue pos and neg. Wanted to get more closer to the bluish punch caused by the wrong timing parameter.

I am using WP22 but it is maybe to dark for you.

no banding at all! (cause I am using the same curve as stock)
[Nexus 5 Themes and Apps] spitefulrain:
It tells you where to change the settings In the text you copied/pasted, and I'm not sure how to make it much clearer.

Read all of the First 2 posts or I'd recommend staying away from this mod, you won't know what you're messing with
[Nexus 5 Themes and Apps] tomciopaluch357:
It's OK I got ot
[Nexus 5 Themes and Apps] niffel:
Do you get with your settings the same blueish white, which the n7 and lg g2 have?

I tried your settings and they improve the color alot compared to stock settings, but it´s still yellowish compared to my n7 display.
[Nexus 5 Themes and Apps] 0rigin:
Not my settings, but mag01's. Yeah mine is yellowish too, but it doesn't really bother me, as it's not that bad.
[Nexus 5 Themes and Apps] SurenSeven:
Somebody help me out here. For the attached images what values do you recommend i change in the calibration app?

Help is much appreciated.

Briefly: (current values from display tester for below attachments)

Gray: 1.8 ~1.9

Red: 2.0

Green: 2.0

Blue: 1.8

Yellow: 1.8

Cyan:1.7(unsure)

Magenta:1.8

Edit: damn! Screenshots didn't come right. Refer to above values.
[Nexus 5 Themes and Apps] drawde40599:
K ?

Tryed looking threw the thread but not seeing anything . had my phone RMA'ed for screen bleeding i had since day one ... Anyways the new phone had Very noticeable yellow tint (suck !) Played around with this app and few settings listed here i cleared app rebooted few times like people said to do app is on all defaults now and yellow tint is gone . hmmmmmm Y ? I no I'm on defaults because I took screen shots before I changed anything And checked and now I uninstalled app. But yellow is gone screen looks perfect now . I'm very happy about this but but would love to no Y ,?
[Nexus 5 Themes and Apps] dbolot1:
You probably had glue underneath the screen that was not completely dried so the screen had yellow tint...but once it dried it became clear and your yellow tint went away.
[Nexus 5 Themes and Apps] drawde40599:
Ya I've herd of that, but to have it change from yellow to white and stay there in less than 30 min? ... Who no' s I guess , but thanks faux :D
[Nexus 5 Themes and Apps] drawde40599:
Went back to yellow after few hours . weird ....
[Nexus 5 Themes and Apps] NYCguy2020:
It's the magic of Faux123 :D
[Nexus 5 Themes and Apps] fireproofrev:
Here my new settings to get more saturated colors and a nice screen calibration without any banding. I dont care much about accuracy and perfekt gamma

Red: stock values

Green: stock values

Blue: pos and negative like in the screenshot

WP: 22-25 (i am using 22)
[Nexus 5 Themes and Apps] italia0101:
Because the colours change when the device warms up... So when it cools it changed back
[Nexus 5 Themes and Apps] drawde40599:
it stays yellow 100% of the time agn hot or cold , can't explain or duplicate what happened yesterday .

Do " we" have a color chart yet ? Or just this thread still .
[Nexus 5 Themes and Apps] raycaster3:
I'm another non technical guy that likes full saturated color. These settings do the trick nicely. Thnx for sharing.
[Nexus 5 Themes and Apps] Dahnark:
Anyone know slightly color values from elementalx kernel? This kernel solve yellow tint. But I wanna try franco kernel with this app solving yellow tint.

Enviado desde mi Nexus 5 mediante Tapatalk
[Nexus 5 Themes and Apps] neriamarillo:
For saturation this really works really good. So for people who just want this, these settings work really good! Thanks!
[Nexus 5 Themes and Apps] Patozandoval17:
I used this values and like me the saturation but I think that the blacks are so much blues. I have WP 25 what happened if I change to 30?
[Nexus 5 Themes and Apps] Johnny424:
I have tried a lot of the different settings people have posted. I am a saturated color guy as well. don't care much about numbers.. I like these settings because the saturation makes the colors look great. and I used 23 wp and whites a very brilliant. although maybes its just me but I never noticed yellowish whites in the first place. either way thanks for this.
[Nexus 5 Themes and Apps] LibiSC:
Does it work with latest franco kernel cause i see an exception in logcat when applying and i see no changes
[Nexus 5 Themes and Apps] Patozandoval17:
I have r25 Franco Kernel and Gamma works for me.
[Nexus 5 Themes and Apps] LibiSC:
I'm in PA Beta with Franco 25 but nothing... Does it work with an special version of Busybox?
[Nexus 5 Themes and Apps] neriamarillo:
Same here. Using stock ROM and Franco r25. It works perfectly.
[Nexus 5 Themes and Apps] DemosZevasa:
People do know, gamma changes don't show up in screenshots, right? The changes can only be seen on your hardware...

Sent from my Nexus 5
[Nexus 5 Themes and Apps] Johnny424:
yeah I figured that out after I posted it. appreciate the info though :rolleyes:
[Nexus 5 Themes and Apps] DemosZevasa:
Not specifically directed at you, seen alot of people doing it so I figured I'd give some general info :)

Sent from my Nexus 5
[Nexus 5 Themes and Apps] Dougshell:
Maybe I am having an especially dumb night, but can anyone explain how to make changes on my own. I have entered the values in the second post and most of my color gammas are between 2.0 and 2.2 but i would like to make my own device specific changes, but I am not sure how. I do have the display tester app. Basically an explaination of the process would be great, or at least a push in the right direction.
[Nexus 5 Themes and Apps] Stoozak:
[MENTION=5543250]mag01[/MENTION] Firstly thanks for all your hard work, but I do have a question. With the settings you suggested my screen has a reddish tint. You mentioned in your post that the manipulation of red is pretty limited. That said, should I be looking to change red values or one (or both) of the others to rid me of this colour contamination?
[Nexus 5 Themes and Apps] Cyb3rGlitch:
How does one turn off all subpixels of a particular colour using this app? e.g. no blue.
[Nexus 5 Themes and Apps] mag01:
[MENTION=2172706]Stoozak[/MENTION]

That's the fun with these varying displays. :D If it's reddish after reducing levels of green and blue (which is what I've done) then you'll need to bring either blue or green (or both) back up. The main question is how much - that's something you'll have to find out by experimenting I'm afraid as without any spectrophotometer or at least colorimeter you won't be able to find out more exactly... Try to look at it with the default setup and if it's greenish or yellowish, try to reduce just green levels. And try to reduce them less than what I did. Check it after you've done these changes and decide what to do next..

My posts were aimed at figuring out how do these settings really work in first place.

I'll maybe try to post some more examples later - like few simple examples of "linear" adjustments to levels of each colour - starting from the minimal possible linear change and ending somewhere around what I've done with the green in my previous descriptions. That should explain this rebalancing more clearly. But it will take a lot of time to do it properly and as I still haven't seen anybody interested in developing some nice app out of it I'm not much keen to do that.
[Nexus 5 Themes and Apps] Spittal:
Oh man, I've been experimenting for weeks and weeks and absolutely nothing I try gets even close to the beautiful colours that Franco got in his r14 build of his Kernel.

Has anyone come close to those great colours?
[Nexus 5 Themes and Apps] spirit1:
+1
[Nexus 5 Themes and Apps] EarlZ:
I am yet to try the app and the kernel, I am mainly interested on controlling the white point on my device as it is a little to warm for my liking. Can anyone point to me where to start?
[Nexus 5 Themes and Apps] hello00:
i get some blues on gray background..thxs for the settings tho
[Nexus 5 Themes and Apps] ZacksBuilds:
Hey all. Can anyone give me some good settings?

Device: Nexus 5 16gb Black

ROM: AOSPA 4.0BETA w/ Franco r25
[Nexus 5 Themes and Apps] DubelBoom:
Thanks!

Usually I like colors to be accurate, but I do prefer them slightly washed out on the Nexus 5.

This is great! Only a bit too red for me..
[Nexus 5 Themes and Apps] fireproofrev:
I am still experimenting with the blue settings to white. To black I already got the greys maybe a little to blue but to the white it still have a reddish punch.

I will keep experimenting but so far I know the only way to avoid bending is to lower or higher half of the values within a color simultaneous. (First half are the values 1-12 and the second half are the values 13-23 (within a color). One side is to black and the other to white)

[MENTION=4152171]myfluxi[/MENTION] [MENTION=3332811]faux123[/MENTION]

I think this will be the "magic" of further gamma calibration apps, which will allow to change first and second half of values within a color simultaneous with a slider(e.g. blue pos/neg values 1-12: "all stock values" "+10" or "-10", another same working slider also for the values 13-23). Changing the original curve will lead to bending.
[Nexus 5 Themes and Apps] leonclement:
Then use this kernel like I am :) he uses franco's latest kernel but carrys on using the color mod :), search color in his thread: http://xdaforums.com/showthread.php?t=2538441
[Nexus 5 Themes and Apps] Timan25:
So if I remove the app, do I lose all values saved? And colors get reverted back? I'm kinda retarded when it comes to icons in the launcher heh.
[Nexus 5 Themes and Apps] Batfink33:
Fireproofprevs settings from a few pages back but with the white point set to 32 not 22 gives me almost Franco colours. The best I've had so far.
[Nexus 5 Themes and Apps] rajendra82:
I am using the values in the second post with test 10 software, and based on display tester app screens, my gamma on most colors measures close to 2.2. Great job on finding these values. I love the developer community on Nexus devices. If someone could fix this overactive auto brightness, this display would be perfect.

P.S. - I am on Franco r25 kernel.
[Nexus 5 Themes and Apps] neriamarillo:
I'm trying to compare [MENTION=4259467]fireproofrev[/MENTION] settings, while changing white point, to the HTC One I have next to me. Trying to get it as similar as possible. I'm at 30 right now and some colors do look very good next to the HTC. The whites however still aren't there. Seems bluer on the HTC and kinda yellowish on the N5. And also blacks are richer on the HTC.
[Nexus 5 Themes and Apps] linezero:
is there a way to lower screen brightness or reduce brightness from a certain corner of the screen?
[Nexus 5 Themes and Apps] rajendra82:
The white temperature measurements on every objective review of Nexus 5 have always said that the white point was close to 6400 K. I am used to seeing a true neutral white, so the display does not strike as particularly yellow to to me. It was the default gamma of 2.0 that needed correction the most. The values in 2nd post seem to almost nail that. The change would be subtle, but you would end up with the most accurate display. You would need to adjust your HTC One to match that, if you could. You may not like the warmer whites at first, but you will get used to them. That is how a display is supposed to look like.

If you want to compare the white to something, compare it to an iPhone. That is set to a near neutral 6400 K white point as well. The HTC One white point is probably too cool, but I don't know for certain. I don't own one.
[Nexus 5 Themes and Apps] neriamarillo:
I actually don't like the bluish whites since I am used to calibrated displays. I like the warmer whites. I just want the grays and the black to be better on the N5. ;):thumbup:
[Nexus 5 Themes and Apps] shantu:
okay, after getting an update to the kernel, was able to play around with the settings again :D

R pos & neg- 0, 10, 17, 27, 37, 45, 56, 72, 83, 101, 112, 121, 128, 123, 117, 106, 91, 78, 68, 62, 53, 38, 22

G pos & neg- 71, 73, 75, 78, 81, 84, 90, 100, 105, 117, 124, 130, 121, 117, 111, 100, 85, 73, 64, 58, 50, 37,21

B pos & neg- 80, 81, 83, 85, 89, 90, 95, 103, 105, 115, 121, 125, 135, 129, 123, 111, 99, 86, 76, 67, 55, 48, 35

WP - 26

I had a pretty yellowish display, and red gamma was touching 2.8 on default :(. On current setting taht is gone :)

current gamma -

white - 2.3

red - 2.6

green - 2.3-2.4

blue - 2.2

yellow - 2.4

cyan - 2.2

magenta - 2.6
[Nexus 5 Themes and Apps] ems328i:
Just discovered this thread and this app. I have only had my Nexus 5 for a few days and have been blown away by the screen and the performance so I wasn't looking to improve on anything. Then I came across this thread and tried the app out of curiosity. Before chaging any settings I used Display Tester and my gamma was 1.8. Now, I'm using the settings in the second post, and wow. Turns out my screen had a slightly yellow tint that I hadn't noticed because now the screen looks simply amazing, gamma is between 2.1 and 2.2, and the yellow tint is gone. I wish I could hit the Thanks button more than once!
[Nexus 5 Themes and Apps] katsuru:
How can I get The original values back? I changed The values for some Testing, now i dont Know what The original ones were
[Nexus 5 Themes and Apps] 0rigin:
The "set on boot" button is your friend.
[Nexus 5 Themes and Apps] katsuru:
when i open the app the values i changed are still stored (!?)

EDIT: I ended up reinstalling the app, now the values are back to original.
[Nexus 5 Themes and Apps] 0rigin:
Or you could move the slider to off and reboot.
[Nexus 5 Themes and Apps] katsuru:
that works (again) after i reinstalled the app. :good:

thanks mate.
[Nexus 5 Themes and Apps] EarlZ:
The shade of grey used by the stock keyboard appears yellowish on my end, where do I need to tinker to adjust this?
[Nexus 5 Themes and Apps] thegr8anand:
Hi guys. My screen was cracked and just got it replaced today. Immediately noticed it has yellow tint clear on white backgrounds. Is it completely fault of the new lcd or just a calibration issue which can be resolved?
[Nexus 5 Themes and Apps] JNewms:
Try adjusting the gamma values and see if it fixes it. You'll then have your answer.
[Nexus 5 Themes and Apps] 0rigin:
A little teaser from Paul posted on G+, of what's yet to come to his app/kernel settings. I think it's nigh!:D Looks like he incorporated some different profiles too.
[Nexus 5 Themes and Apps] AirOne70:
I'm not sure if this is for Hammerhead, maybe for few Sammy devices only.

Sent from my Nexus 5
[Nexus 5 Themes and Apps] katsuru:
Is there gona be an update with intuitive UI? I can't seem to understand all this parameters :p
[Nexus 5 Themes and Apps] :
Thanks alot man :D , Using your settings with wp 28 , the yellow tint vanished finally .. will stick to these :D
[Nexus 5 Themes and Apps] JaylanPHNX:
I'm hoping at some point to get close to the Obsanity_AMOLED preset from Faux123's Mako gamma. The blacks were so black and the colors just popped. The grays on Hammerhead are just too light. Unfortunately, the current interface is all Greek to me.

Sent from my Nexus 5
[Nexus 5 Themes and Apps] Patozandoval17:
I reduce WP 32 to 26 and get more ssturation, Im very happy.

Is bad for the phone if I only touch the WP?
[Nexus 5 Themes and Apps] 0rigin:
No, it's bad for your eyes, because now your screen is yellow.:angel:
[Nexus 5 Themes and Apps] Cyb3rGlitch:
If anyone here works out how to solve this elegantly, I'll gift them a Steam game.
[Nexus 5 Themes and Apps] katsuru:
I just need a way to get rid of the yellowish screen. other than that I find my screen to be Ok.

I tried some values of faux i believe, only Blue gamma, that gets rid of my Yellow screen, but gives me a light Redish screen, still some progress made! Lets hope someday I will get my screen to show proper colors :fingers-crossed:
[Nexus 5 Themes and Apps] lyzanxia:
I hope Faux releases his new fauxclock soon with the presets.
[Nexus 5 Themes and Apps] samitro:
Here are my values, they provide me with better gamma results (closer to 2.2) than those in the second post.

Overall Color Gamma Curve (row 1 column 1 of RGB Gamma tabs) => 0 is highest, 255 lowest

Red Gamma Positive=> 0

Green Gamma Positive=> 73

Blue Gamma Positive=> 78

Red Gamma Negative => 0

Green Gamma Negative => 73

Blue Gamma Negative => 78

Gamma Color Brightness (row 2 column 5 of RGB Gamma tabs) => 0 is highest, 255 lowest

Red Gamma Positive => 90

Green Gamma Positive => 110

Blue Gamma Positive => 110

Red Gamma Negative => 90

Green Gamma Negative => 110

Blue Gamma Negative => 110

Overall White Point Brightness => 0 darkest, 255 brightest

Gamma white point, Column 1 => 26
[Nexus 5 Themes and Apps] LibiSC:
Hi I can't use the app.... I'm attaching a screenshot of the log cat... It happens with different kernels and roms
[Nexus 5 Themes and Apps] neriamarillo:
I tries these settings and it brings me almost all the colors and gamma to 2.2-2.4. Now I am getting banding but colors look good. :confused:

Edit: I rebooted and the app applied the settings and now the nice colors are there and banding went from very visible to almost invisible now. Checked with the Display Tester app and line in banding test is barely there. Nice!
[Nexus 5 Themes and Apps] katsuru:
Can anyone explain me what the side efects from colorbanding are?