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lcd density changer

I ave mine at 130 and love it

What exactly does this do? Does it make the viewing angles better at all?

Its like changing the screen resolution on a computer.

Does it affect battery life at all? Any other drawbacks?

A better question is: "how did you accomplish this?"
App or editing of some config file?

nunjabusiness said:
A better question is: "how did you accomplish this?"
App or editing of some config file?
Click to expand...
Click to collapse
You can edit /system/build.prop on gingerbread, I bet its the same for Froyo, but I am not positive. Or you can use an app. I use LCD Density Changer to change it, but you need to be rooted. Personally I run 130 too and I love it.
clankfu said:
Does it affect battery life at all? Any other drawbacks?
Click to expand...
Click to collapse
It could, theoretically, cause apps to take more GPU or CPU to render, which could change the battery life, but I have not had that happen to any noticeable extent. It also might slow down the rom a bit because of it theoretically needing more GPU or CPU, but again I have not noticed this. Some apps will not display right at lower density values, for example pandora will not center or scale the images correctly and it will look a bit odd because of that.
clankfu said:
What exactly does this do? Does it make the viewing angles better at all?
Click to expand...
Click to collapse
It will not make the viewing angles any better.
the3dman said:
Its like changing the screen resolution on a computer.
Click to expand...
Click to collapse
Yes it basically makes it look like its running at a higher resolution because it changes the PPI, but since the actual monitor is at the same resolution the pixles will not become smaller. It will just shrink everything it displays, which will sometimes make small images and text become a bit rough looking around the edges if you go with a very low setting. Some apps will cause more of a problem than others.

thanks for that long description. I've noticed a bit of unresponsiveness...but i've only had my G-Tab for a couple days so I don't know if its the ROM, the GT, or LCD changer.
Have you been any change in screen response?

sudermatt said:
Have you been any change in screen response?
Click to expand...
Click to collapse
I have not noticed any change on my phone, but then again I also run Evervolv (2.3 rom) and it might depend on what version of android, what kernel, what CPU scheduler, etc. As far as the tablet, since I have been working on a rom for it (flashing it several times a day) It's really hard to say, sorry I can't be of more help.

Tablet quicker with black wallpaper?

So i have just rooted my tablet and with a few quirks it works awesome. sometimes the wallpaper will black out and come back but thats not my issue. my issue is that the tablet is so much faster, on the homescreen anyway. the apps open and transfer so quickly i might just keep it like that. anyone else get this weird, uh thing?

curiousmileo said:
So i have just rooted my tablet and with a few quirks it works awesome. sometimes the wallpaper will black out and come back but thats not my issue. my issue is that the tablet is so much faster, on the homescreen anyway. the apps open and transfer so quickly i might just keep it like that. anyone else get this weird, uh thing?
Click to expand...
Click to collapse
Well i don't know about a black wallpaper but the tablet is definitely smooth with all the system wallpapers.

Obviously the more pixels it has to render the slower it is. Colours are more intensive than a lack of colour (black). And a live wallpaper is the most cpu-intensive.

yea that makes sense but to have the difference be that substantial is pretty ridiculous. having a live wallpaper and being a little jerky here and there is fine but the difference from stock wallpaper to no wallpaper and high res ones is insane

No, it's not insane. You appear to forget we're talking about 1920 by 1200 pixels. That's 2304000 pixels. If they're black, nothing has to be rendered, the value is simply 0.
Any photoshopper can tell you more colour means more resources used, and the bigger the image the more it lags.

No, it's not insane. You appear to forget we're talking about 1920 by 1200 pixels. That's 2304000 pixels. If they're black, nothing has to be rendered, the value is simply 0.
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Click to collapse
The black background still has to be rendered, otherwise you would see the old content that was there before. And obviously, any solid color uses the same amount of resources.

I see what you're saying and it makes sense but shouldn't a device of this stature not be so affected from this? My evo when both on blank wallpaper and a high res one there is no difference in how fast the tablet works and especially how fast apps open. In the tablet though, its very night and day.

curiousmileo said:
I see what you're saying and it makes sense but shouldn't a device of this stature not be so affected from this?
Click to expand...
Click to collapse
I work on a uni computer especially dedicated to heavy rendering and photoshopping. It runs two GTX 680 2GB in sli, an Intel Core i7-990X Extreme Edition overclocked at 4.2ghz and 32GB ram. (And they won't let me game on it... ) If I try to scroll on a 200% zoom 5000x5000px canvas all black, it's gliding on ice. If I do the same on one with more than 8 colours, it lags more and more as more colours are added. This is basic physics.
_that said:
The black background still has to be rendered, otherwise you would see the old content that was there before. And obviously, any solid color uses the same amount of resources.
Click to expand...
Click to collapse
Yes that's true. The colour itself doesn't really matter, just the amount of different colours.

ok well why is my phone not affected by this?

curiousmileo said:
ok well why is my phone not affected by this?
Click to expand...
Click to collapse
Lower screen resolution.

[Q] Can the resolution of this phone be changed?

Hello! Was wondering if there was a way to change the resolution of the S6 from QHD down to 1080p. I've found the Nomone Resolution Changer, but I was wondering if there was a more trustworthy way about getting the resolution to get to 1080p. Long shot, but still! Recommendations, please?

Tythas said:
Hello! Was wondering if there was a way to change the resolution of the S6 from QHD down to 1080p. I've found the Nomone Resolution Changer, but I was wondering if there was a more trustworthy way about getting the resolution to get to 1080p. Long shot, but still! Recommendations, please?
Click to expand...
Click to collapse
Mind if I ask why?

entropism said:
Mind if I ask why?
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Click to collapse
Actually I was wondering the same thing until I remembered the fact it has a small battery and a 5.1" screen that really doesn't need the QHD resolution with such a small battery + screen

There are some apps available to change the DPI, i know that skydragon roms come pre baked with a DPI changer, but this will require root.

Stevles said:
Actually I was wondering the same thing until I remembered the fact it has a small battery and a 5.1" screen that really doesn't need the QHD resolution with such a small battery + screen
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Click to collapse
But that's not how it works. The phone will still have the same qHD screen, and will still have the same amount of pixels, and require the same amount of power. You're basically just changing the DPI to make everything larger, using 4 pixels to display what 1 used to.

entropism said:
But that's not how it works. The phone will still have the same qHD screen, and will still have the same amount of pixels, and require the same amount of power. You're basically just changing the DPI to make everything larger, using 4 pixels to display what 1 used to.
Click to expand...
Click to collapse
No he actually wants to change the proper resolution, not DPI.
Less resolution = Less processing power required = Less battery spent.
That being said.. OP no there isn't a way

Stevles said:
No he actually wants to change the proper resolution, not DPI.
Less resolution = Less processing power required = Less battery spent.
That being said.. OP no there isn't a way
Click to expand...
Click to collapse
Right, that's what I meant. You can't change the DPI (which would what he'd be doing) and have it magically change the physical number of pixels used.

No that's not what he's asking. He's asking this much like a TV. Instead of having it be QHD he wants it to display in 1080.
It's a clever way of thinking but that wouldn't help really. It'll still have the super pretty screen just everything would be smaller. Even if there was a way

nolimit78 said:
No that's not what he's asking. He's asking this much like a TV. Instead of having it be QHD he wants it to display in 1080.
It's a clever way of thinking but that wouldn't help really. It'll still have the super pretty screen just everything would be smaller. Even if there was a way
Click to expand...
Click to collapse
But that's the point: Even if you wanted to display in 1080, you still have the same amount of physical pixels in the screen, and the same amount of power needed to light them up. Unless, of course, you wanted to only use 1920x1080 pixels, at which point only 25% of the display would actually be lit up.

entropism said:
But that's the point: Even if you wanted to display in 1080, you still have the same amount of physical pixels in the screen, and the same amount of power needed to light them up. Unless, of course, you wanted to only use 1920x1080 pixels, at which point only 25% of the display would actually be lit up.
Click to expand...
Click to collapse
You're missing the point.
First of all, lowering the resolution would make everything appear larger. You have to lower the DPI setting in build.prop to scale things back down to the same size (or lower).
Secondly, lowering the output resolution will save battery power and increase performance because the CPU and GPU are working less. This is fact and just how computers work (the screen is not the only power draw in a phone). The amount of physical pixels in the screen is irrelevant because that will draw the same amount of power regardless of what the resolution is. (However, since the is an AMOLED screen, it will draw less power when displaying blacks due to the nature of the technology. Not that this has anything to do with the resolution discussion.)
Thirdly, the amount of power you will be saying varies. Mostly you will gain performance and power-savings while playing 3D (rendered) games. The GPU will be able to perform at a higher framerate as well as save you power. This is tested and true, although some applications will be glitchy due to poor coding. The amount of savings while on normal screens is subject to the efficiency of the SoC. I am not sire much will be gained here. Performance in these screens is said to be slightly increased, although I believe this phone probably has snappy speeds already.
Lastly, if you do this there may be a visual issue that could get on your nerves. Since you are altering the 1:1 resolution of the pixels, a blur will naturally occur. Since the screen is relatively small for the amount of pixels in it, the blur will be minimal and you will hardly notice after your eyes adjust to it.

Using Resolution Changer Pro (free app) you can set res to 1080 and dpi to 480 for a significant improvement in gaming performance. (phone doesnt heat up like frying pan anymore)
Difference in quality is completely unboticable.

Thoth33 said:
Using Resolution Changer Pro (free app) you can set res to 1080 and dpi to 480 for a significant improvement in gaming performance. (phone doesnt heat up like frying pan anymore)
Difference in quality is completely unboticable.
Click to expand...
Click to collapse
Yes after resolution changed, everything go smoother

Thoth33 said:
Using Resolution Changer Pro (free app) you can set res to 1080 and dpi to 480 for a significant improvement in gaming performance. (phone doesnt heat up like frying pan anymore)
Difference in quality is completely unboticable.
Click to expand...
Click to collapse
Hello Thoth33,
I used Resolution Changer Pro, but it didn't change the resolution!
What do I do wrong? I use Android 6.0 beta on my Galaxy S6 (SM-G920F).
It even tells me that it gets root access!

Help The Peace said:
Hello Thoth33,
I used Resolution Changer Pro, but it didn't change the resolution!
What do I do wrong? I use Android 6.0 beta on my Galaxy S6 (SM-G920F).
It even tells me that it gets root access!
Click to expand...
Click to collapse
It is required ROOT

jojoejit said:
It is required ROOT
Click to expand...
Click to collapse
I HAVE root...

Help The Peace said:
I HAVE root...
Click to expand...
Click to collapse
Resolution Changer Pro
From the description:
####### THIS APP REQUIRES ROOT AND 4.0+ #######
####### TouchWIZ launcher will behave oddly -- install an alternate launcher BEFORE trying this #######
####### Android versions LOWER than 4.2 may not fill the whole screen. #######

Theodric58 said:
Resolution Changer Pro
From the description:
####### THIS APP REQUIRES ROOT AND 4.0+ #######
####### TouchWIZ launcher will behave oddly -- install an alternate launcher BEFORE trying this #######
####### Android versions LOWER than 4.2 may not fill the whole screen. #######
Click to expand...
Click to collapse
Solved the problem via Android Terminal Emulator!!

i changed the resolution on my Galaxy S6 Active from QHD to just HD!! Did some graphics benchmarks and the results are more than 2 times those of QHD.
Oh, and I did this without ROOT.

Xa33M said:
i changed the resolution on my Galaxy S6 Active from QHD to just HD!! Did some graphics benchmarks and the results are more than 2 times those of QHD.
Oh, and I did this without ROOT.
Click to expand...
Click to collapse
How to do it without root?

MobileTechArena said:
How to do it without root?
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Click to collapse
You can do it via adb.
These are the 2 commands for both screen resolution and dpi
adb shell wm density (insert dpi here)
adb shell wm size (insert resolution here) && adb reboot
The reason for using both commands is that you have to use the correct dpi with your desired resolution and screen size, so that the icons and UI is neither too large nor too small, otherwise, the UI will crash
For example,
For Galaxy S6,
If you want 1080p, you have to choose 480 dpi as that is the correct dpi for a 5.1 Inch diaplay.
If you want to go back to QHD, just repeat the same commands with your stock dpi and resolution, which are
640 dpi
1440x2560 resolution && adb reboot
I did it via adb because currently there is no root for the S6 Active.

1080p as standard !!!!!

https://youtu.be/nP0I6Mb880E
Sent from my Nexus 6P using XDA-Developers Legacy app

Yup, this was pretty obviously stated and samsung did tell people. You can turn the resolution up if you require also.

1920/1080 is 1080p....so 1080P+
:laugh:

its a little more than 1080p. Also I speak from experience that you can not tell a difference unless you are looking for it. It is the same screen resolution on the S7's with nougat.

Yep it is. Lets not blow this out of proportion people if you want QHD+ its in the settings under display.
Sent from my SAMSUNG-SM-G935A using Tapatalk

lordandroid said:
Yep it is. Lets not blow this out of proportion people if you want QHD+ its in the settings under display.
Sent from my SAMSUNG-SM-G935A using Tapatalk
Click to expand...
Click to collapse
that also. lol. its not that bad it being 1080p+ though. It looks almost the same and to most you wont be able to tell.

Agreed ?
Sent from my SAMSUNG-SM-G935A using Tapatalk

I couldnt tell on my oneplus 3T, the screen was great.

QHD on a phone is overkill. It's a nice-to-have if you're trying to watch a movie, but other than that it's purely excessive. If someone showed you a 1080p and a QHD display on the S8 or even the s8 plus, I can all but guarantee you wouldn't be able to tell the difference. I sure can't with my S7E.

The problem is not that 1080p looks bad. The problem is that this display has a set number of width and height pixels which is defined as 2960 x 1440. So if you want to display a picture which is 2220 x 1080 in a display which size isn't a multiple of the picture you have to interpolate. You somehow need to have just 1080 pixels in a row where there are supposed to be 1440. Why don't they go with 720p instead? Well I guess it would also look shi**y :/
Just my thoughts, I have never seen a S7 or S8 display.
EDIT: I just think about this from a delevoper perspecive. The developer thinks: Let's make a black 2px line there -> it's a 2px line.
Because you cant fit a multiple of 1080 in 1440 the interpolation would make a 2,66px line. As you know you cant color 0.66 parts of a pixel black. So most likely the whole pixel will be black which results in a 3px black line where there should be a 2,66px line. As this happens with every pixel of the display the image won't just get inaccurate but also the GPU has to do some very unnecessary scaling work.

Termynat0r said:
The problem is not that 1080p looks bad. The problem is that this display has a set number of width and height pixels which is defined as 2960 x 1440. So if you want to display a picture which is 2220 x 1080 in a display which size isn't a multiple of the picture you have to interpolate. You somehow need to have just 1080 pixels in a row where there are supposed to be 1440. Why don't they go with 720p instead? Well I guess it would also look shi**y :/
Just my thoughts, I have never seen a S7 or S8 display.
Click to expand...
Click to collapse
It's the same as changing the resolution of a computer or monitor display. The interpolation isn't the issue, every manufacture has that down pat. 720p would make a noticeable difference, even in basic browsing and function. 1080p is enough that on a screen the size of the S8 or S8+ you wouldn't be able to see the individual (or interpolated) pixels.

marinebio94 said:
It's the same as changing the resolution of a computer or monitor display. The interpolation isn't the issue, every manufacture has that down pat. 720p would make a noticeable difference, even in basic browsing and function. 1080p is enough that on a screen the size of the S8 or S8+ you wouldn't be able to see the individual (or interpolated) pixels.
Click to expand...
Click to collapse
I didn't say that this is not the same. But when I buy a 1080p monitor, I use it in 1080p because thats what it is intended for. You won't see pixels on a 500+ ppi device. But the image will be totally unaccurate and that's not what I generally like to look at. I just tried this in photoshop and the effect is even worse than I thought and demonstrated by that example picture in my last post. Here's what it'll really look like. You want to look at this? Of course it will be very small pixels but do you really don't mind?! I know I do.

Termynat0r said:
I didn't say that this is not the same. But when I buy a 1080p monitor, I use it in 1080p because thats what it is intended for. You won't see pixels on a 500+ ppi device. But the image will be totally unaccurate and that's not what I generally like to look at. I just tried this in photoshop and the effect is even worse than I thought and demonstrated by that example picture in my last post. Here's what it'll really look like. You want to look at this? Of course it will be very small pixels but do you really don't mind?! I know I do.
Click to expand...
Click to collapse
That's not at all what it will really look like. Doing something in photoshop is not even close to how it will look in real life. Please look at the phone before you assume what it will look like. I just switched my phone from 1080p to QHD and back again, and I literally cannot tell the difference, even with my face pressed inches away from the phone.

marinebio94 said:
That's not at all what it will really look like. Doing something in photoshop is not even close to how it will look in real life. Please look at the phone before you assume what it will look like. I just switched my phone from 1080p to QHD and back again, and I literally cannot tell the difference, even with my face pressed inches away from the phone.
Click to expand...
Click to collapse
You can't negotiate with the pixel science
Most likely the pixels are just to small to see a difference but I will take a look at the phone when I get it to judge wether switching to 1440p or not

Termynat0r said:
You can't negotiate with the pixel science
Most likely the pixels are just to small to see a difference but I will take a look at the phone when I get it to judge wether switching to 1440p or not
Click to expand...
Click to collapse
But don't forget these OLED panels use a diamond pentile subpixel arragement, so the interpolation isn't quite the same as a traditional RGB LCD monitor.
It's REALLY REALLY difficult to tell the difference between QHD and 1080p on the S7. At more than about a foot, it's nearly impossible to tell. I know what you're saying, I hate running monitors at non-native resolutions.
If it bugs you that much, just change it.

If lower resolution gets me another 1hr SOT per day, I'll drop all the way to the bottom. Can't tell the diff.

I just changed to 1080 p on my S7E (was at the highest rez setting). Really can't see a difference. Icons and keyboard are a bit larger. Texts are a bit bigger. But as far as sharpness, look of the display, not an issue. Just going to test and see if this makes a difference much on SOT or not. I can always change back to the highest rez setting if I want - takes about 30 seconds to do.

teegunn said:
I just changed to 1080 p on my S7E (was at the highest rez setting). Really can't see a difference. Icons and keyboard are a bit larger. Texts are a bit bigger. But as far as sharpness, look of the display, not an issue. Just going to test and see if this makes a difference much on SOT or not. I can always change back to the highest rez setting if I want - takes about 30 seconds to do.
Click to expand...
Click to collapse
This setting should not affect the size of the screen elements (icons, text) at all.

se1000 said:
This setting should not affect the size of the screen elements (icons, text) at all.
Click to expand...
Click to collapse
The initial change of setting could change aspect ratios, but a quick restart should fix it.

se1000 said:
This setting should not affect the size of the screen elements (icons, text) at all.
Click to expand...
Click to collapse
I use Nova launcher, Swype and Handcent texting app. It changed the size of icons, the size of font, the size of the keyboard and the size of the texts (the bubbles and text font). It did increase the size on all of those. Also increased the size of the quick settings, etc. It's not a big deal, but it did increase the size of things a bit. Has caused no problems so far otherwise.

General 1080p Default Screen Resolution

Now that the embargo is up, one of the things I've found interesting from the reviews is that the 7 Pro screen resolution defaults to 1080p, and you have to go into the settings to switch it to 1440p.
Maybe Google thinks people will notice the improved battery life more than they will notice the reduced resolution.

Unless you hold the phone a few inches from your face, or you use a magnifying glass, you will NOT see any discernable difference. So it depends on what is more important to "you", longer battery life per day, or imaginary higher screen resolution?

Interesting, I didn't know that. Does that really save that much battery? The whole screen is still being used.
It's also a weird thing to do marketing wise - hey you've got a great display, but we'll show you worse quality...
What's the point of having the higher resolution if many people will never use it?

jbaysingar said:
Now that the embargo is up, one of the things I've found interesting from the reviews is that the 7 Pro screen resolution defaults to 1080p, and you have to go into the settings to switch it to 1440p.
Maybe Google thinks people will notice the improved battery life more than they will notice the reduced resolution.
Click to expand...
Click to collapse
Sometimes they just make us do all the settings which are suitable for us!

mko000 said:
Interesting, I didn't know that. Does that really save that much battery? The whole screen is still being used.
It's also a weird thing to do marketing wise - hey you've got a great display, but we'll show you worse quality...
What's the point of having the higher resolution if many people will never use it?
Click to expand...
Click to collapse
Some people are into specs and will buy based on that alone, whether it's the SOC, the screen resolution, the refresh rate, or the camera modules even though in real world use most of the specs make no discernable difference to 99% of end users.

Is it possible to make a Toggle to switch between 1080p and 1440p in Tasker?

I'm leaving mine at 1080p. It's plenty good. Hardly even noticable.

I cant tell a difference, well not one that makes any difference so i'll leave it at 1080p if its going to give a bit more battery life.

Has anyone done a comparison on the difference between 1080 and 1440

Paz9 said:
Has anyone done a comparison on the difference between 1080 and 1440
Click to expand...
Click to collapse
The only thing I can reliably see is when in the setting itself when you toggle between the two resolutions I notice that the clock in the notification shade will move about 1/8th inch to the left on QHD and then move back to the right on FHD. Give it a try and see.

Paz9 said:
Has anyone done a comparison on the difference between 1080 and 1440
Click to expand...
Click to collapse
As I mentioned previously, I currently have an S21 ultra (snapdragon) and evaluating via this forum my buying the 7 Pro. On my S21U I have the Display Tester app (available in both free and "Pro" versions). The S21U also comes, out of the box, set to 1080P. However, when you look at 1080P using Display Tester you will see that the gamma of the display is out of wack. There the gamma is around 1.4 or so, leading to a somewhat washed out image. Setting it to WQHD+ (3200 x 1400) Gamma goes to 2.2, the accurate setting.
Interested if anybody wants to test this out on the 7P.

peterg21 said:
As I mentioned previously, I currently have an S21 ultra (snapdragon) and evaluating via this forum my buying the 7 Pro. On my S21U I have the Display Tester app (available in both free and "Pro" versions). The S21U also comes, out of the box, set to 1080P. However, when you look at 1080P using Display Tester you will see that the gamma of the display is out of wack. There the gamma is around 1.4 or so, leading to a somewhat washed out image. Setting it to WQHD+ (3200 x 1400) Gamma goes to 2.2, the accurate setting.
Interested if anybody wants to test this out on the 7P.
Click to expand...
Click to collapse
Just tested it. Same exact results you report on the S21

peterg21 said:
As I mentioned previously, I currently have an S21 ultra (snapdragon) and evaluating via this forum my buying the 7 Pro. On my S21U I have the Display Tester app (available in both free and "Pro" versions). The S21U also comes, out of the box, set to 1080P. However, when you look at 1080P using Display Tester you will see that the gamma of the display is out of wack. There the gamma is around 1.4 or so, leading to a somewhat washed out image. Setting it to WQHD+ (3200 x 1400) Gamma goes to 2.2, the accurate setting.
Interested if anybody wants to test this out on the 7P.
Click to expand...
Click to collapse
What's the main issue with this?

Paz9 said:
What's the main issue with this?
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Click to collapse
According to my (possibly fallible eyes), it’s 1.4 @ 1080 and between 2.2 and 2.3 at 1440.

RebDovid said:
According to my (possibly fallible eyes), it’s 1.4 @ 1080 and between 2.2 and 2.3 at 1440.
Click to expand...
Click to collapse
How is that a bad thing exactly?

Paz9 said:
How is that a bad thing exactly?
Click to expand...
Click to collapse
Here are a couple of links which explain Gamma and why it is important:
The Main Reason Monitor Calibration Is Essential
Gamma is used in digital photography to determine the image's brightness and is important to understand.
www.lifewire.com
The importance of gamma
"Gamma" has to do with how a display translates input signal levels into the intensity of output light. We show you how to understand the relationship.
www.androidauthority.com

This should be tested in both 60hz and Adaptive/120hz mode as the calibration between different refreshrates can differ.