[Q] is it possible to reduce screen resolution in android? - Android Q&A, Help & Troubleshooting

is it possible to reduce screen resolution in android? so as to save power or play games more smoothly just like on a pc for example?

There's an app for Froyo
http://forum.xda-developers.com/showpost.php?p=7938982&postcount=1

will reducing resolution actually increase battery life or play games more smoothly or i am being wrong?

anyone? .........

thread up..........anyone?

As for battery no. The screen is still lighting up the same amount of pixels and same brightness etc... Gaming i doubt u will see a difference. Tell us if u find othwise tho. Hope that helped
Sent from my PC36100 using XDA App

Changing screen density isn't the same as changing resolution. Apps choose which icons to show depending on the "screen-density" value reported by the device. So higher density devices will have larger and more detailed icon graphics, etc.
As far as saving battery life, the screen typically uses most battery which varies slightly depending on the brightness setting. One root user found he could save battery by only showing red colours (requires changes to the display driver).

Shrinking the screen like in Note 3 will save energy...anybody found a way how to do this in other phones? application?

yeahman45 said:
is it possible to reduce screen resolution in android? so as to save power or play games more smoothly just like on a pc for example?
Click to expand...
Click to collapse
Use chainfire 3D.. You need to have rooted phone.. Search in Google.. You will get the xda thread link..
Sent from my XT1032 using XDA Premium 4 mobile app

try look at [ro.sf.lcd_density] value at build prop ? im just playing with that

Related

[Q] CHange Pixel Density on Galaxy S2?

Hi, i have a Samsung Galaxy S2 which i would like to change the Pixel Density of. It is rooted currently, but I just want to be able to read texts clearer and play my games and watch videos more sharp and crisp.. i know there are afew apps on the android market which can do this, but if i want clear/sharpness which is the recommended pixel density(240 is the default).
Also, i need something that will work perfectly on Galaxy S2, like, not make the widgets or icons or anything out of proportion...i want things to auto fit
It's in theory impossible since our display is 480 by 800.. If you want a better display sell your SGS2 and buy a Nexus
how is it impossible? there are apps which change the density...
cant i just use a custom home screen launcher?
have a look at hyperdroid. It is MDPI compatible
There is an app that magically creates more physical pixels on you screen? Wow how much is that and could it make my hdtv into a 3D tv too?.. Serious how do you think thats possible? If you want a better pixel density buy a phone with an hd screen because you definatly cannot change it...
Sent from my GT-I9100 using Tapatalk
peterdan1506 said:
how is it impossible? there are apps which change the density...
cant i just use a custom home screen launcher?
Click to expand...
Click to collapse
no.
10 char
Unless I misunderstood your question, there is no way on gods earth that you can create more pixels (ie higher density) than what there physically is.
The best you can do is to max out the screen brightness which gives the illusion of a better picture.
peterdan1506 said:
Hi, i have a Samsung Galaxy S2 which i would like to change the Pixel Density of. It is rooted currently, but I just want to be able to read texts clearer and play my games and watch videos more sharp and crisp.. i know there are afew apps on the android market which can do this, but if i want clear/sharpness which is the recommended pixel density(240 is the default).
Also, i need something that will work perfectly on Galaxy S2, like, not make the widgets or icons or anything out of proportion...i want things to auto fit
Click to expand...
Click to collapse
Of course you can change the density, just edit system/build.prop with rootexplorer..
Despite the smart answers above, I know what you mean, and love this app on my Asus TF-101
http://www.addictivetips.com/mobile/change-android-screen-resolution-with-lcd-density/
http://www.redmondpie.com/change-sc...android-device-with-lcd-resolution-root-only/
No need for that much complication, you just need to decrease the pixel value, well you can do that by editing build.prop or just use a simple app from market called LCD Resolution (Root).
But no, how on earth would you technically increase dpi while I9100 is given a 480x800 resolution hardware wise.
Wish that was possible and I could made my 1680x1050 monitor a HD one
why you would like do that ?
yes, i'm courious too, why?

Decrease brightness

I have a rooted S3 with the stock rom. I am looking for a way to decrease the minimum brightness. I have seen and tried the brightness fix from the Note but that didn't work. I've also tried filters in the app store and those suck. On my evo I had a tweak that decreased/increased the min max levels. Is there anything like this for the s3?
Sounds like you may have already tried it but I am using a great app called screen filter. Does the job perfectly.
Sent from my GT-I9300 using Tapatalk 2
ospreyguy said:
I have a rooted S3 with the stock rom. I am looking for a way to decrease the minimum brightness. I have seen and tried the brightness fix from the Note but that didn't work. I've also tried filters in the app store and those suck. On my evo I had a tweak that decreased/increased the min max levels. Is there anything like this for the s3?
Click to expand...
Click to collapse
JKay Framework has a statusbar toggle that can set the screen brightness to a very low level, perfect for night reading.
Try Vodoo Display Filter.
You can't find a better app than this one to do this job!
Let me know if it's ok .
Screen Filter from the Play Store. 'nuff said.
Just tried screen filter and it works neatly.
So I had the Screen Filter app and while it worked it make everything look really funky and filtered. I didn't like it. Voodoo Display Filter is a much better option I think. The filter is less harsh and works great!
Thanks everyone!
Questions go in the QA section
Try Lux from Google Play. It's paid however
"Lux" app from play store.
Best brightness app out there no question.
Sent from my GT-I9300 using Tapatalk 2

[Q]Run apps at lower resolution?

In general,can we change some properties to make a given app run on a lower than native resolution?I think it should be totally possible,since phone come in various aspect ratios and resolutions.So the app detects the screen and resolution,and adopts accordingly.Gensoid does that in-app.Double,original size,strech,etc....
For instance,if we have a game on a 1920x1080 screen,but the GPU struggles to keep the framerate,we lower it to 960x540,the game still looks fine,because we get 1:2 resolution,and far fewer pixels to push.I think there should be an app for that.
You guys are no fun
Try chainfire 3d
Sent from my GT-B5512 using xda app-developers app

[GUIDE] Change Screen Resolution [Performance Tweak][CM/AOSP]

>Change Screen Resolution<
Introduction:
I'm going to write this guide to teach you how to change the Screen Resolution of your Xiaomi Mi3/Mi4 AOSP/CM Based ROM to improve the graphics performance of your Mi3 without stressing your CPU/GPU while playing games.
What you need to Download:
Resolution Changer by NoMone:
https://play.google.com/store/apps/...apk&pcampaignid=APPU_1_TXl1VcrLFoWB8QXozIGIBA
Root Browser:
https://play.google.com/store/apps/...ser&pcampaignid=APPU_1_oXl1VczIG4_s8AX7-YLQCQ
Note: Default Screen Resolution of Xiaomi Mi 3 is 1080x1920FHD @480 DPI, well what we are going to do is Change it into 720x1280HD @320 to improve performance. (Don't worry about getting the icons bigger, the reason why we have to reduce the DPI on the Build.prop is to avoid glitches and make the Icons and UI at the normal size when changing the resolution, because using the Resolution Changer alone will cause some glitches on other apps )
Steps:
1. Open Root Browser; and find /system/build.prop and open it using RB Text Editor.
2. Find ro.sf.lcd_density=480 and change it to 320.
3. Click Save.
4. Open Resolution Changer; Enter 720 Width, 1280 Height, 320 DPI
5. Click Apply and wait for it to change.
6. Click Yes to Confirm and Skip on the next dialog.
7. Now exit the app and Reboot.
After rebooting, you'll see that you've changed the Screen Resolution to FHD>HD. :good:
Congratulation, to prove it do an Antutu Benchmark test and you'll see the difference. :good:
Additional Info:
(OPTIONAL IF YOU'RE USING CUSTOM DPI ON FULL HD)
If you were using a custom DPI on FULL HD for example;
You're using 400 or 380 or 370 on 1080x1920FHD Resolution,
Do these to properly change resolution to avoid getting the UI or Icons Bigger than Normal.
Example;
If you are using 400DPI on 1080x1920FHD.
400÷3=133DPI
400-133=267DPI
so the right DPI that you're going to use would be; 267DPI on 720x1280HD PLEASE, DONT FORGET to CLICK THANKS!​
Everything is working almost perfectly. Some icons are larger than they used to be. But that wasn't problem. Real problem is that SwiftKey keyboard didn't scale. So I had to revert back to Google original keyboard to reset resolution back to 1080p
Sent from my MI 3W using XDA Free mobile app
Silac_8 said:
Everything is working almost perfectly. Some icons are larger than they used to be. But that wasn't problem. Real problem is that SwiftKey keyboard didn't scale. So I had to revert back to Google original keyboard to reset resolution back to 1080p
Sent from my MI 3W using XDA Free mobile app
Click to expand...
Click to collapse
Oh I forgot to write something about Swift Keyboard, Sorry since I used Google Keyboard. but aside from Swiftkey everything is fine :good:
I have done this years ago. Not only CM/AOSP but all rooted phones.
Thanks for putting some guide though. :good::fingers-crossed:
bluerain28 said:
I have done this years ago. Not only CM/AOSP but all rooted phones.
Thanks for putting some guide though. :good::fingers-crossed:
Click to expand...
Click to collapse
I wrote this guide for those who are confused and experiencing glitches when using the Resolution Changer alone and of course for the beginners
added additional info.
I just noticed. I used 294 DPI for 720x1280
bluerain28 said:
I just noticed. I used 294 DPI for 720x1280
Click to expand...
Click to collapse
Alright! ?
Initially tried this with MIUI v5, turned out to be very bad. The icons became very large and going to back to native resolution didn't help either. Fortunately I had nandroid backup.
Later I tried it on MIUI 6, it worked!
Some glitches are there:
- On recent apps screen
- camera effects selection screen
- Calender and clock icons turned invisible
- Minor glitches in clock app
Otherwise everything looks good, and performance bump is noticeable. Excited to find out how much it improves battery life.
Thanks for sharing.
pra300 said:
Initially tried this with MIUI v5, turned out to be very bad. The icons became very large and going to back to native resolution didn't help either. Fortunately I had nandroid backup.
Later I tried it on MIUI 6, it worked!
Some glitches are there:
- On recent apps screen
- camera effects selection screen
- Calender and clock icons turned invisible
- Minor glitches in clock app
Otherwise everything looks good, and performance bump is noticeable. Excited to find out how much it improves battery life.
Thanks for sharing.
Click to expand...
Click to collapse
No problem
that's why it's for CM/AOSP Based ROM but I'm glad that it worked for you though there are some glitches.
Hi im using a a33 tab with screen dpi 160 and 480x800 resolution. Can I change this to higher resolution and dpi?
sent from xda app in my s710 using tapatalk . (*゚▽゚)ノ
andywoody12 said:
Hi im using a a33 tab with screen dpi 160 and 480x800 resolution. Can I change this to higher resolution and dpi?
sent from xda app in my s710 using tapatalk . (*゚▽゚)ノ
Click to expand...
Click to collapse
You can but, I won't recommend it because it would just stress out the processor and gpu of that low-end tablet, just leave that be.
Better use gl tools
While everyone gets larger icons,i am getting small icons,small screen,and all the app including resolution changer itself says the current settings is 1080x1920 with 320dpi.
Where am i doing it wrong?
I am on cm12 latest nightly.
same problem as Jongla here, running the same CM 12 nightlies. I guess the problem is that resolution changer doesnt change anything after you apply, current settings are kept as FHD res. Maybe try a different app to do it.
QQboss said:
same problem as Jongla here, running the same CM 12 nightlies. I guess the problem is that resolution changer doesnt change anything after you apply, current settings are kept as FHD res. Maybe try a different app to do it.
Click to expand...
Click to collapse
Try this method.Its easier and works just fine.
http://nexus5.wonderhowto.com/how-t...xus-6-by-lowering-display-resolution-0159881/
thanks buddy, this one works like a charm
cool trick..
It's become blurry, not clear like before
Guys, if you're using a CM rom, just install Xposed and install the App Setting module. Then, you just choose the app, turn on the custom settings, choose the resolution and dpi you want, and the app will run with those defenitions without having to mess with the entire UI on the device...

Resolution decreased to HD - weird UI elements

Hi to all!
Well I've read some guides about how to decrease the resolution on my Z2 running latest Marshmallow Existenz ROM 5.6.5. Changed resolution to 720x1280 and system DPI to 253 (I have rather a good eyesight that is why do not mind small UI elements ).
Some apps were not satisfied with the DPI I told them to work in that is why I tailored some of them using Xposed module App Settings.
But there are some issues I could not repair :crying::
1. The bootanimation displays normally, but after some seconds only half of the screen is filled (so it says ''Xpe'' and then ''Existe''). Tried to install smaller (720x1280) bootanimation but the result is the same. I can live with that
2. The Recents' thumbnails are enormous. Even 1/5 of the app is displayed in the thumbnails. I thought initially that it is caused by SystemUI's messed settings with the DPI so I played with App Settings to repair it (both ''DPI'' and ''Screen (dp)''). Still with no luck.
Thought it might be connected somehow to Android WebView which is operating in country's local app with used stuff called Finn. There the thumbnail is also really huge, before the whole picture would fit in the thumbnails.
3. Is the suggestions/xperia menu search. The ''suggested'' apps are much bigger that the icons displayed in menu.
So it might be some scalling issue, but I have no idea which application would I need to adjust.
https://postimg .org/image/53me7e9i9/
https://postimg .org/image/5uf4d6bvl/
https://postimg .org/image/wtiz8bych/
https://postimg .org/image/dcy9lt38h/
https://postimg .org/image/ku7h10srl/
My phone is running Android 6.0.1, with root, with xposed modules related to UI: AppSettings, GravityBox, Xperia Home by Serajr
Any help in the matter will be appreciated! ::laugh:
Vixificent
No one ? - I don't believe no one really had that issue! At least say: 'Happens to me too'.
Keep it hd 1080x1920 and change DPI to 320
Sent from my D6503 using XDA-Developers Legacy app
Thank you for your input! However it is not the solution I am looking for. I just wanted to have lower resolution for a better performance. I am I the only one who is meeting such issues?
Vixificent said:
Thank you for your input! However it is not the solution I am looking for. I just wanted to have lower resolution for a better performance. I am I the only one who is meeting such issues?
Click to expand...
Click to collapse
I tried it and got the same like you.
Sent from my D6503 using XDA-Developers Legacy app
I reduced my resolution to 540x960 and set the dpi to 240. Performance and battery life felt largely the same. Graphics were mostly unaffected except for weird glitches like the ones mentioned in the OP (walkman aka music would straight up stop working though). Text looked blurry, perhaps a subpixel rendering thing.
At the end I returned to 1080p. It was not worth tickling my OCD for little to no benefit.
Thank you for your replies! Wow Pixelado, your resolution was pretty low. Beacause no newer Xperia has that resolution, the Sony apps could cease to work. I wanted to keep something still lower yet 'compatible'.
Yes the performance is pretty much the same. Antutu did not gave a higher score, even gave a lower on CPU and higher on 3D a bit. What I noticed was after playing 3D game for around 20 mins the temperature was around 53C, before in 1080x1920 it was over 61C (in a thin rubber cover). What are your observations?
Best regards,
Vixificent
I came back to 1080p as suggested. Thanks! :good:

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