I decided to run a custom kernel on CM9 alpha 5, and want to adjust the screen color. Everywhere i look says i need to get Voodoo control from the market, but when i search via my phone or the website, i get no results for voodoo control. Am I missing something?
Voodoo sound he changed the name from control to sound because that's its main purpose..usually.
Sent From My SPH-D700 Running Android 4.0
Thanks! Got my screen color more to my liking again..
Well, after 5 months of looking out for the best values, I've experimented and all and found out these to be the best. Even at lowest brightness, the screen is crisp and clear just like it's supposed to be.
People who have the Purple Screen issue, I highly recommend you use these values.
Requirements -
1. Franco Kernel Updater (TKT wouldn't give that much brightness/crispyness to the screen)
2. ICS Gradient Fix (Check Signature)
3. Franco Kernel
First up, flash Franco's latest kernel.
Secondly, make sure you don't have any 2 or more applications which have Color Control options (Like, Franco Kernel Updater and TKT - Remove TKT and stay with Franco). If you do have 2 or more installed, please set all values to default on all applications including Franco's. (In TKT, click on menu and select reset preferences and reboot).
Third, fire up Franco Kernel Updater and get to the CC options and set these :
Color Multipliers -
Red - 280
Green - 292
Blue - 350
Gamma -
Red - 4
Green - 0
Blue - 9
Disable Contrast Adaptive Brightness - Yes (Tick)
Contrast Control : -24
OMAP Gamma - 1.2
These values work BEST with MoDaCo's JB Build. Tested on Jr1, Jr.1.1, Jr2.
Please note : This is simply a band aid, not a total fix. The purple screen and grain issue is probably a hardware issue. This settings are extremely crisp on my device. You need to get adapted to them.
Thanks to -
1. Franco for his amazing kernel and application.
2. Morfic for introducing contrast control into the kernel world and of course for his kindness. (You're the sweetest developer I've talked to).
Best of luck with these settings guys!
Please, don't forget to click "Thanks"!
It made everything look over-saturated for me.. plus, is it safe to jack up the settings like this?
It did improve the grainy screen on low brightness problem, though.
Well, i think the best values i've EVER Seen.
Oh dear, so f****ng awesome.
via Google Galaxy Nexus
Made my eyes hurt.. Too cold.. I'm trying to get my screen as close to 6500k as possible.
Sent from my Galaxy Nexus using Tapatalk 2
Thank you for this! By far the best optimization of colors I've ever seen. Maybe colors are a bit over-saturated but thats how Super AMOLED should produce.
Doesn't lacking the values up that high create burn in???
Sent from my Galaxy Nexus using xda premium
craigbailey1986 said:
Doesn't lacking the values up that high create burn in???
Sent from my Galaxy Nexus using xda premium
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Try reducing every multiplier value by 40. 280 to 240, 292 to 252 and 300 to 260.
This can never be an all-in-one "fix" because of the way screen technology works. Everyone's screen will have different degrees of the problem itself (purple tint & grain), on top of that they will all have a slightly different color temperature, contrast level, saturation etc. By providing the values that worked for you, you're just going to have a thread where half the people think it looks great, half think it looks awful, and everyone thinks everyone else is crazy.
A better idea might be to describe the steps you took to arrive at your own numbers, things you looked for, how you tweaked them to get to the best values.
Look Excellent to me - Screen absolutely Pops, so vivid and the gradient issues are not visible.
Thanks so much!
Those high values are gonna kill your screen
OP settings work well for me (similar to my 200 215 280, -2 0 10, -23, CAB off), but OMAP always makes things worse IMO. With OMAP at 1.2 I instantly see banding again where with it off the gradients are smooth. OP settings with OMAP 1.0 are excellent however, reducing the magenta and yellowing I was seeing with my others. I am worried about the burn-in though..
What's this about burn in? Do these settings cause it?
I sort-of mispoke. Burn-in is possible, but high multipliers are more worried to wear out those pixels/degrade them faster.
Edit: I'm going for more of a "Trinity Blue" sort of solution now: 215 235 280, -2 0 15, -24, CAD off, OMAP unset. Still trying to find that balance that gets rid of the magenta/yellow at all points.
Okay guys try out 180,192 and 250 as the color multipliers. No burn issues then. I'm on it right now. Its great!
I'm using Trinity kernel, TKT, and Display Tester Pro for calibration. The gamma test shows that my particular settings should be red=2, green=3, blue=2. The color gamma settings are not relative to one another and are not "mixed together" for adjusting color. Each one is a separate adjustment for that color's correct level of brightness for midtones, relative to darkest and lightest levels. Together, the three settings add up to correct gray brightness levels, not to correct gray colorlessness.
If you look at a chart containing only black, 50% gray, and white, the color multipliers should be adjusted to remove any trace of color tint from the gray. The easiest way to do it is set the weakest color to 200 and reduce the other two colors until the gray has no color tint at all. The properly set color gamma settings, on the other hand, should make the 50% gray have the correct lightness level.
If you have yellow tint, there's not enough blue. Magenta tint means not enough green. Cyan tint, not enough red.
The color multipliers, unlike the gamma settings, are relative to one another. Once you have them set correctly relative to one another, moving them all up or all down together pnly changes the overall brightness of the display. The wrong overall brightness level will remove detail from either the black end or the white end. Too much brightness is also bad for the screen, not to mention battery drain.
So anyway I'll shut up now and I hope everyone gets their screens looking perfect.
gsm gnex / cm9 / trinity / 1420 MHz
for whatever reason trinity seems to be giving me better screen color, but im sure I could do the same with franco, anyways, my gamma settings are untouched, I found that modifying the color to these values makes the purple tint go away for me:
Red:135
Green:135
Blue:190
Trinity Contrast -15 to -25
Have you tried adjusting it for 18% gray? I can nail it pretty close with 180,150,190 and 8,0,8 but gamma is a complete ***** on this display...
strumcat said:
I'm using Trinity kernel, TKT, and Display Tester Pro for calibration. The gamma test shows that my particular settings should be red=2, green=3, blue=2. The color gamma settings are not relative to one another and are not "mixed together" for adjusting color. Each one is a separate adjustment for that color's correct level of brightness for midtones, relative to darkest and lightest levels. Together, the three settings add up to correct gray brightness levels, not to correct gray colorlessness.
If you look at a chart containing only black, 50% gray, and white, the color multipliers should be adjusted to remove any trace of color tint from the gray. The easiest way to do it is set the weakest color to 200 and reduce the other two colors until the gray has no color tint at all. The properly set color gamma settings, on the other hand, should make the 50% gray have the correct lightness level.
If you have yellow tint, there's not enough blue. Magenta tint means not enough green. Cyan tint, not enough red.
The color multipliers, unlike the gamma settings, are relative to one another. Once you have them set correctly relative to one another, moving them all up or all down together pnly changes the overall brightness of the display. The wrong overall brightness level will remove detail from either the black end or the white end. Too much brightness is also bad for the screen, not to mention battery drain.
So anyway I'll shut up now and I hope everyone gets their screens looking perfect.
gsm gnex / cm9 / trinity / 1420 MHz
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arzbhatia said:
Okay guys try out 180,192 and 250 as the color multipliers. No burn issues then. I'm on it right now. Its great!
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It's been discussed few times already - going above 200 can lead to screen burn in. On SAMOLED screens blue color wear out first and peeps really shouldn't touch this setting. Better set lower red/green values. Screen will look a bit darker so don't cranck up contrast too much, -10 should be good enough.
herzzreh said:
Made my eyes hurt.. Too cold.. I'm trying to get my screen as close to 6500k as possible.
Sent from my Galaxy Nexus using Tapatalk 2
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look at the graphs.
http://forum.xda-developers.com/showpost.php?p=29037317&postcount=1
herzzreh said:
Have you tried adjusting it for 18% gray? I can nail it pretty close with 180,150,190 and 8,0,8 but gamma is a complete ***** on this display...
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You can see where your gamma should by by installing the free version of Display Tester from the Play Store. Go to Color, Gamma, and slide the gray screen to the left to see the red page. Find the vertical bar that most closely matches the red bacground. The number on that bar is where your gamma should be set for that color. Mine is spot on at 2.3. Then slide to green page and do the same. Then the blue page. My green gamma reading is 2.8, meaning it isn't quite as bright as the red or blue, so I have to turn it up a hair. My blue is good at 2.3. The adjustment sliders in TKT only give me whole-number choices, so I get as close as possible with 2, 3, 2. I'm just guessing there, since TKT doesn't have normal gamma increments. Anyway good luck taming your gamma.
galaxy nexus (gsm) / cm9 / trinity @ 1.4GHz
My screen dim level is at 1 and my phone is still too bright. How could I reduce this even further so that sliding my brightness toggle in the notifications bar all the way to low will reduce the brightness even further? Is there not an option or a mod that allows you to pretty much dim your screen to complete darkness?
zetsui said:
My screen dim level is at 1 and my phone is still too bright. How could I reduce this even further so that sliding my brightness toggle in the notifications bar all the way to low will reduce the brightness even further? Is there not an option or a mod that allows you to pretty much dim your screen to complete darkness?
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screen filter from playstore
harshrp11 said:
screen filter from playstore
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I see screen filter, the only problem I have with it is its persistent notification. As far as I can see there's no way to remove it. If I could get rid of the persistent notification I would set it to boot with tasker.
Suggestions to remove from notification?
Try lux auto brightness not sure if it has persistent notification or not.
jefferson9 said:
Try lux auto brightness not sure if it has persistent notification or not.
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Click to collapse
I know about lux too, but it's not what I need.
Is there a way to lower the brightness set by the kernel or is this unchangeable?
Download screen calibrator and it works like a charm, you can also remove the icon from the status bar
Sent from my SGH-I747 using xda app-developers app
I looked into this too, I believe the only option is screen filter or anything like it.. which makes no sense to me.
Lower brightness = better for eyes+battery
i386W7 said:
I looked into this too, I believe the only option is screen filter or anything like it.. which makes no sense to me.
Lower brightness = better for eyes+battery
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Yeah I actually prefer the dropdown notification built into AOKP roms for brightness, but the lowest brightness is too bright. In a room with lights off, reading the amazon kindle before bed is pretty discomforting if you're trying to ease into sleep. Way too bright.
Apparently the only way to do it unless the screen filter author comes up with a way to get rid of that persistent notification/load on startup is to kernel hack, and personally for someone who isn't a developer/programmer, I wouldn't touch an opensource code with a stick
I have the same problem. The lowest brightness is still too high to read something with the lights off.
Hey, I think I actually found something.. do you have cm10? If you do, you can turn on screen filter normally then go to settings > apps > screen filter and uncheck "show notifications". That took away the persistent notification for me.
I don't know if you can do this in aopk.
i have a great solution (with a notification-so i will try your suggestion 386 once my rom is done backing up), but want to make my own personalized "build (apps, tweaks etc) thread". Where can I make it without getting slapped by the mods? In the galaxy s3 general thread or since most of it is can be done on different android phones in the the overall general thread?
First of all, yes i turned autobrightness off and turned it manually up to the max, but i think that the brightnes goes down in some apps or the brightnes is just kinda low on the note 2? i am on this rom http://forum.xda-developers.com/showthread.php?t=2259479
Brightness level on all Samsung phones is good... that ROM uses a lot of dark/black themes... so my guess is just the apps that are dark themed will appear lower in brightness.
However do check (in settings) your Screen mode.. if it is set to standard or Dynamic...check Brightness settings (in settings again, not toggles) to see if Auto is set and where the "line dot" is set... and further down check if you have "Auto adjust screen tone" checked.
But you have enough post counts to ask in that ROM thread for better answers. Good luck!
Yeah, I've also noticed low brightness on stock based 4.3 ROM.You may use some other apps to control it (never tried them).
However now I'm on miui and the brightness adapt seems much better.
Sent from galaxy n7105
5T comes with a few color profiles and last one where you can slide from cool to warn modes.
But the profiles I like the most, have too much saturation on colors.
Are there any option/non-root app to manually fine tune color/contrast/saturation?
If not, there are any root app to do this?
Regards!
Very good question I have the same trouble with profile colours that we can manage in Oxygen OS.
superandroid2011 said:
5T comes with a few color profiles and last one where you can slide from cool to warn modes.
But the profiles I like the most, have too much saturation on colors.
Are there any option/non-root app to manually fine tune color/contrast/saturation?
If not, there are any root app to do this?
Regards!
Click to expand...
Click to collapse
Any kernel that has kcal as a feature can fine tune colour using kernel aduitor