Better Battery Life with down scale to 1080p or 720p

[mohamed_moscow]

WARNING: secondary display REPORTED NOT WORKING

using ADB (Go to about--) build (press 7 times) ---) USB debug (Allow) ---)Using SDK on PC to push adb commands.

Original
adb shell wm size 1440x2560 (if you are using adb then adb shell)
adb shell wm density 640

adb shell wm size 720x1280
adb shell wm density 320

adb shell wm size 1080x1920
adb shell wm density 450

(Try this out)
adb shell wm size 900x1600
adb shell wm density 380


the default android density values are: 240(HDPI)/280/320/360(XHDPI)/400/440/480(XXHDPI)/520/560/600/640(XXXHDPI)/680/720)

return both values to default with the following commands:
wm size reset
wm density reset

If someone can helping fixing secondary display by leaving scale the same and changing only the main screen.

This gives a better life battery lasting for 1 day moderate use and 5 hours full time working screen ( with 1080p scale).

No root required.

Original thread
( https://xdaforums.com/nexus-6p/general/mod-force-nexus-6p-to-scale-to-1080p-t3298620?nocache=1 ).

All thanks goes to Chord_Hugo87

 

[panda968]

How can we do this as root without computer

 

[SpiritStealer]

I've just tried it,
tried scaling to 720P (Battery life is so important to me, and this phone isn't a good one) but did't like the scaling (everything so large) and felt like loosing alot of the experience
I've scaled to 1080P and it's fine for now, will try it for few days, hopefully it would perform better

Hope to remember to feed you back on the result

 

[minhnewpro]

I've just tried it,
tried scaling to 720P (Battery life is so important to me, and this phone isn't a good one) but did't like the scaling (everything so large) and felt like loosing alot of the experience
I've scaled to 1080P and it's fine for now, will try it for few days, hopefully it would perform better

Hope to remember to feed you back on the result

You need change DPI when change resolution.

 

[mohamed_moscow]

I've just tried it,
tried scaling to 720P (Battery life is so important to me, and this phone isn't a good one) but did't like the scaling (everything so large) and felt like loosing alot of the experience
I've scaled to 1080P and it's fine for now, will try it for few days, hopefully it would perform better

Hope to remember to feed you back on the result

Copy this 2 line and you will get a good look.
adb shell wm size 900x1600
adb shell wm density 380

 

[majidamiri15300]

How can we do this as root without computer

it annoyed me that no one answered.

through terminal on your phone, type "su" then enter, then type the same commands just without "adb shell"

 

[davidomin97]

I've tried some resolutions, but I see that part of the screen becomes black. I wish there was a way to preserve all pixels, but with a real rescale and no losing screen. Some help? :')

 

[davidomin97]

I've tried some resolutions, but I see that part of the screen becomes black. I wish there was a way to preserve all pixels, but with a real rescale and no losing screen. Some help? :')

Actually, I answered the question myself. What happens with this unique smartphone is that the wm takes in count the secondary display as the physical resolution. If you write adb shell wm size, it will tell you the physical resolution and the resolution you are rescaling at. I did that and I found that the physical resolution is 1440x2720, which means that, in order to maintain every pixel active, you need to take in count those 160 extra pixels. So the actual correct resolution for 1080p is 1080x2040. If someone has the same problem, I hope that this solution helps him/her

 

[Seletpotsitpem]

Actually, I answered the question myself. What happens with this unique smartphone is that the wm takes in count the secondary display as the physical resolution. If you write adb shell wm size, it will tell you the physical resolution and the resolution you are rescaling at. I did that and I found that the physical resolution is 1440x2720, which means that, in order to maintain every pixel active, you need to take in count those 160 extra pixels. So the actual correct resolution for 1080p is 1080x2040. If someone has the same problem, I hope that this solution helps him/her

my ./adb shell wm size shown 1440x2560