Database Users

[Q] how² change display contrast/saturation

hey guys i was wondering if there is any way (or maybe app? ) to change the display settings on hd2 or android in general
i searched some other threads but somehow nobody knows how it goes^^

Try lcd density changer. I found a few in appbrain market, finally found one that works on my hd2, check your default before changing anything though, the first one i tried for some reason when i rebooted my screen was black, like i could touch things and feel the haptic but no screen. I had to clean install my android rom. I think the hd2 is default 240 and i went to 220 and it was cool. Some apps dont scale right but others are fine, and the font is much crisper imo
Sent from my HTC HD2 using XDA App

LCD density changer doesn't seem to change contrast/saturation but only pixel density/resolution.
Is there a way to change dispaly contrast or saturation?

Been looking for this too..
The Desire HD should* have the same screen as the hd2, am i right?
why is it that the colors are a bit more saturated in the desire hd? it must be a software issue, no?

saintnickxiii said:
Been looking for this too..
The Desire HD should* have the same screen as the hd2, am i right?
why is it that the colors are a bit more saturated in the desire hd? it must be a software issue, no?
Click to expand...
Click to collapse
The Desire HD uses an S-LCD were as the HD2 has a normal LCD

[Q] Is there a way to fix up the gradient banding?

Has anyone noticed is pretty much all the Froyo builds (I haven't tried Gingerbread yet) that most apps that have some form of gradient, it is represented by very ugly banding.
The Froyo Call Screen
Xiia Live
These are a few of the programs. I've checked my brothers phone (Galaxy S) and his one doesn't have these issues.
Is there any way to fix these or is this just a limitation?

Psygnosis84 said:
Has anyone noticed is pretty much all the Froyo builds (I haven't tried Gingerbread yet) that most apps that have some form of gradient, it is represented by very ugly banding.
The Froyo Call Screen
Xiia Live
These are a few of the programs. I've checked my brothers phone (Galaxy S) and his one doesn't have these issues.
Is there any way to fix these or is this just a limitation?
Click to expand...
Click to collapse
HD2= 65K screen = Bad colour = banding
For the moment, hopefully it will be fixed with 16m colors

No, it's not display. when you move widget, this bandig disappear. this issiue affact Gingerbread build to... any idea, how to fix that?

Try Launcher Pro. That got rid of banding issues for me. You don't have to get rid of your current launcher to try it, so there's nothing to lose, and I'd highly recommend it anyway. It's by far my favourite launcher available.

Yeah, about this subject.
I have a desire hd rom, and in sense ui gradients show banding, for the ui and everything. It's most visible on the power control widget.
However, when I move to launcher pro, the same widget shows no banding.
Any way to incorporate that "fix" to simulate less color information and get rid of the banding?

nemuro said:
Yeah, about this subject.
I have a desire hd rom, and in sense ui gradients show banding, for the ui and everything. It's most visible on the power control widget.
However, when I move to launcher pro, the same widget shows no banding.
Any way to incorporate that "fix" to simulate less color information and get rid of the banding?
Click to expand...
Click to collapse
If you use live wallpaper the banding will appear.

mylove299 said:
If you use live wallpaper the banding will appear.
Click to expand...
Click to collapse
I don't use live wallpapers. And how could that relate? Does a live-wallpaper eat from the number of colors the display can show, or what?

nemuro said:
Any way to incorporate that "fix" to simulate less color information and get rid of the banding?
Click to expand...
Click to collapse
Simply put... NO.
Launcher Pro is a paid software and will not be cooked into and publicly released here on XDA.
Sorry..

dharvey4651 said:
Simply put... NO.
Launcher Pro is a paid software and will not be cooked into and publicly released here on XDA.
Sorry..
Click to expand...
Click to collapse
Technically, launcher pro IS a free app, the paid version simply has more features.
Sent from my SCH-I500 using XDA App

mally2 said:
HD2= 65K screen = Bad colour = banding
For the moment, hopefully it will be fixed with 16m colors
Click to expand...
Click to collapse
Sorry this will never happen.. Microsoft said the 65k colors was a software limitations in winmo 6.5, however the hardware is capable of 262k colors.. currently we are under a software (read: drivers/libs) limitation. Maybe in time one of the wonderful dev's here will find the solution and rewrite the libs to unlock the full screen capabilities.. time will tell... hope this explains things little bit better as its been discussed numerous time that I know of...
Swyped from my Cyanogenmodded HD2

dharvey4651 said:
Simply put... NO.
Launcher Pro is a paid software and will not be cooked into and publicly released here on XDA.
Sorry..
Click to expand...
Click to collapse
I use the free version. Nice try though.
squish099 said:
Sorry this will never happen.. Microsoft said the 65k colors was a software limitations in winmo 6.5, however the hardware is capable of 262k colors.. currently we are under a software (read: drivers/libs) limitation. Maybe in time one of the wonderful dev's here will find the solution and rewrite the libs to unlock the full screen capabilities.. time will tell... hope this explains things little bit better as its been discussed numerous time that I know of...
Swyped from my Cyanogenmodded HD2
Click to expand...
Click to collapse
Does anyone have some proof on this? With a lot of users, there are a lot myths regarding our lovely HD2.
Until I see two hd2 phones, with the same graphics displayed, one with and one without banding, I will have a hard time believing this.

I don't know what you want for proof here's mircrosofts site on the hd2 specs http://www.microsoft.com/windowspho...oft.com/windowsphone/en-us/buy/6/default.aspx you will see what I said in the post before yours. As far as android goes you will have to search for it. It was discussed a long time ago with a couple of devs here..
Swyped from my Cyanogenmodded HD2

thanks or all informations

[Q] Ugly gradients in UI elements and apps

Hello,
I've run BiffMod-HD2 Vanilla Froyo and am currently running MDJ's CyanogenMod 7 Gingerbread on my HD2.
In both instances, UI elements and apps with gradients look low-quality and have step banding.
I think it may be only with PNG files used in backgrounds, buttons, and widgets etc. Anyway, its ugly. Does anybody know why this is and how to fix it?
I took screenshots, but they the gradients look perfectly smooth when I view them on my computer.

I'm having the same issue. It's happened on every ROM I've flashed. Hopefully someone will provide some insight here.

Does anybody know?

Same problem. I think, it happens because HD2 screen is 65k colours only, and Windows Mobile UI is adapted for this mode. But Android was designed for AMOLED screens with millions of colours...

wilderwind said:
Same problem. I think, it happens because HD2 screen is 65k colours only, and Windows Mobile UI is adapted for this mode. But Android was designed for AMOLED screens with millions of colours...
Click to expand...
Click to collapse
Yes the banding is due to 65K color limitation to the HD2 screen. I guess the banding disappears while using the Launcher Pro.

kundanjuit said:
Yes the banding is due to 65K color limitation to the HD2 screen. I guess the banding disappears while using the Launcher Pro.
Click to expand...
Click to collapse
Is it hardware or software limitation? Any way to unlock another color modes?

It is not hardware limitations. There is already another thread with a ton of info. If you want banding to go away, use LauncherPro WITHOUT a live wallpaper until a permanent fix is implemented.
http://forum.xda-developers.com/showthread.php?t=933444&highlight=banding

mayurolla said:
It is not hardware limitations. There is already another thread with a ton of info. If you want banding to go away, use LauncherPro WITHOUT a live wallpaper until a permanent fix is implemented.
http://forum.xda-developers.com/showthread.php?t=933444&highlight=banding
Click to expand...
Click to collapse
Thanks. I didn't think it was because of the screen's color limitations. If so you would see banding in JPGs and video. The banding only seems to appear on PNG files, which happen to be used in most graphical UI elements.
Sent from my HTC HD2 using XDA App

Just tried Launcher Pro and I still have the same problem. I used to use Launcher Pro on BiffMod Froyo and the same thing. The problem presists with 2.2 Launcher, 2.3 Launcher, Zeam, ADW, and Launcher Pro.
And its not only in Widgets. It can be seen in most UI buttons, the call screen, and most predominantly in the voice command pop up. That thing looks like a coin would shoot out if Mario hit it with his fist.
Sent from my HTC HD2 using XDA App

The banding remains elsewhere, but using launcherpro, the banding disappears on the widgets and wallpaper. AGAIN YOU CAN NOT USE A LIVE WALLPAPER with launcerpro or else banding will appear. Then under advanced settings, select high quality scrolling so you dont see banding while scrolling.
I'm using LauncherPro with PureGingerbread this works for me.

mayurolla said:
The banding remains elsewhere, but using launcherpro, the banding disappears on the widgets and wallpaper. AGAIN YOU CAN NOT USE A LIVE WALLPAPER with launcerpro or else banding will appear. Then under advanced settings, select high quality scrolling so you dont see banding while scrolling.
I'm using LauncherPro with PureGingerbread this works for me.
Click to expand...
Click to collapse
I don't use live wallpapers. Still doesn't work for me. Oh well. Using Launcher Pro is really just. Bandaid anyway. The root of the problem is still unknown, at least to me and most people here.
Sent from my HTC HD2 using XDA App

There is a thread about this and your answer you are looking for is post #10

hello00 said:
There is a thread about this and your answer you are looking for is post #10
Click to expand...
Click to collapse
Awesome. Thank you.

Can someone verify this for me - The screen is NOT showing 16 million colors

EDIT: Banding issue resolved via a market app. Yellow still brownish though.
This might be why all of the colors seem... off. I tested the same wallpapers on my captivate and on my atrix. The atrix shows HUGE HUGE HUGE amounts of banding in each and every wallpaper. This is generally a sign that its limited in color range. Both phones are rated as having 16million colors (24 bit), however, I believe the Atrix is more in line with the Evo and only showing 65k colors (16 bit). Both the Evo and Atrix have the same banding in their picture display due to lack of color depth.
Either this is a major misprint on their specs, or they messed up their kernel somewhere along the line? I am not sure what coding could be off with this but could this be our possible color issue?
Unless there is some other reason for this, this phone SURELY isnt displaying 16 million colors. My iPhone has no banding whatsoever on any of the same wallpapers as well.

try setting the wallpaper with an app called wallpaper set and save in the market. do you still see the banding?
Sent from my Nexus S using XDA App

dinan said:
try setting the wallpaper with an app called wallpaper set and save in the market. do you still see the banding?
Sent from my Nexus S using XDA App
Click to expand...
Click to collapse
Ill try it, but there is banding all over the UI. Look at the market menus etc. Its everywhere.

Ok that did get rid of the banding on the wallpaper - thank you for clearing that up. Yellow still having issues though.

yellow is an issue with the atrix screen itself. Google just pushed an update for the nexus s that tweaks the colors a bit so I suppose it may be possible to do the same on the atrix. it might be due to the RGBW subpixels of the atrix screen though.
Sent from my Nexus S using XDA App

Color banding in the UI - what causes it, how to fix it

Hey guys,
I've had android on my HD2 for a couple of months now and it's great, but the thing I hate (on any device, let alone one I'm using all the time) is color banding. If you don't know what color banding is, it's when a display incorrectly renders a gradient between two colors - for an example, click here.
LCD screens are much less prone to color banding than AMOLED, but the HD2's screen is not designed to display the ammount of colors android requires, so many things in the UI have color banding.
However, I've noticed a difference between ROMs - some have banding worse than others, so there must be some way to fix it.
I'm talking specifically about Desire HD ROMs, because that is my experience. The default wallpaper in Imilka's ROMs appears badly banded, as does the UI, whereas in Rafpigna and CMYLXGO's ROMs, the same exact wallpaper image appears smooth and incredibly high resolution.
So my question is - how do you format a background image to cut down on banding? How can the same image appear badly banded on one ROM and smooth on another?
My theory from other phones (HTC Legend, HTC Desire): wallpapers applied from the "HTC Wallpapers" tab always appear smooth with no color banding. Therefore, these images are formatted in such a way as to minimalise the eye-raping. If somebody knows how to duplicate this with other images, that might go a long way to solving the problem
Does anybody know anything about this? It's not a major issue, but it's an annoying one
Cheers

It's hardware, not software. The screen on the Leo has only 256k colors, the same as a GIF image.

Korntoff said:
It's hardware, not software. The screen on the Leo has only 256k colors, the same as a GIF image.
Click to expand...
Click to collapse
It's actually a 65k screen. Also, a GIF does not have 256k colours. It has 256.
So yes, the lack of colour is what causes the banding, this can be helped by enabling dithering which is available on CM7 which is I guess why you see differences on different ROMs.

I've never used a CM ROM and I've noticed differences across roms. I understand there are hardware limitations, but as I said in the OP, there are differences between the same image across different ROMs in regards to wallpapers and UI elements, and there has to be some kind of way to replicate that/format an image to look better

skymera said:
It's actually a 65k screen. Also, a GIF does not have 256k colours. It has 256.
So yes, the lack of colour is what causes the banding, this can be helped by enabling dithering which is available on CM7 which is I guess why you see differences on different ROMs.
Click to expand...
Click to collapse
Oh. I stand corrected.
Sent from my HTC HD2 using XDA App

http://translate.google.com/transla...w-16-bit-hintergrundbilder-mit-photoshop.html

Thanks heaps for that, very helpful post.
I've discovered a (partial) solution for color banding in wallpapers on HTC ROMs.
If a wallpaper is applied through the image gallery, it appears without dithering. But if a wallpaper is applied through HTC's stock wallpapers folder, it is dithered. So, to fix this, I took the image I wanted to use as my wallpaper, put it in the system/customize/resources folder of my ROM.zip file, named it one of the default HTC wallpapers "HTC_wallpaper_04.jpg" (after saving it as a JPG) and the image is now smooth with no noticeable gradients.
If anybody else has a chunky wallpaper and you're using an HTC based ROM, this fix should work for you.