Is there anyway you can lower the resolution? - Nexus 10 Q&A, Help & Troubleshooting

I was thinking, if this tablet has such a high resolution that stresses the gpu so much, is there anyway to manually lower it? Like, you know, on a computer?

lvnatic said:
I was thinking, if this tablet has such a high resolution that stresses the gpu so much, is there anyway to manually lower it? Like, you know, on a computer?
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Try changing the DPI there's a few apps on the market that'll do it for free

Changing DPI won't change the resolution, only the size of elements shown on the screen.
Smartphone screens doesn't have the ability to change resolution as far as I know.
Beamed from my CM10.1 Galaxy Nexus

Related

Is there a way to lower the screen resolution from 1080p to 720p?

I hear they lower the res from 1440 to 1080 in the G3 so is there a way to lower the screen resolution in the G2 from 1080p to 720p?
I couldn't find anything about it in search.
Screen resolution of an lCD is a physical attribute, it cannot be changed. You can change the software to renderer the image so you would get a lower resolution data to show, and since android source is available, it is technically possible. I doubt anybody tried, because our device has a adequite computing power to generate 1080p images. On the other hand, lg g3 has almost same power, but it displays almost double size image. For g2, it won't worth the lost of quality.
The issue is, since LCD will display it on its physical resolution(there is no other way), your image quality will be far worse than the down sampled version. For example, if you render the sceen at 720p, and show it on a 720p 5.2" display, you will lose ~%55 of your data, but since you render your source on this resolution, will be sharp, just won't have so much detail. If you display this 720p image in 1080p display however, screen resolution cannot be changed, so your screen will try to calculate the missing %55, and then show you the result. Since there is no original data, it assumes the missing pixels were like the ones around them, which means your result will be blurry.
As a side note, old tube displays does not have a resolution, they can support various resolutions. We used to set resolution to our taste between speed and detail back then.
enigmanp covered the technical aspect of it and I'll just follow up with my own personal experience.
I had a chinese android tablet running at 2048x1536 resolution, the same resolution commonly found in iPad tablets.
My Android tablet sometimes perform sluggish because of the high resolution. Even though the CPU was a quad core 1Ghz, it's still chinese and the GPU wasn't great either. So I lowered the resolution and everything was blurred and not sharp at all (due to the reasons enigmamp explained above). I DID notice an improvement in overall speed, but apps started misbehaving and it was all a huge mess.
Now the only reason I did that was because I found my tablet lacking smoothness/performance. I just don't quite see why you'd want to do that on the G2 since the CPU and GPU can clearly handle even the most intensive 3D games on high detail. Could you please explain?
vPro97 said:
Could you please explain?
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Mainly to save on battery.
enginmanap said:
Screen resolution of an lCD is a physical attribute, it cannot be changed. You can change the software to renderer the image so you would get a lower resolution data to show, and since android source is available, it is technically possible. I doubt anybody tried, because our device has a adequite computing power to generate 1080p images. On the other hand, lg g3 has almost same power, but it displays almost double size image. For g2, it won't worth the lost of quality.
The issue is, since LCD will display it on its physical resolution(there is no other way), your image quality will be far worse than the down sampled version. For example, if you render the sceen at 720p, and show it on a 720p 5.2" display, you will lose ~%55 of your data, but since you render your source on this resolution, will be sharp, just won't have so much detail. If you display this 720p image in 1080p display however, screen resolution cannot be changed, so your screen will try to calculate the missing %55, and then show you the result. Since there is no original data, it assumes the missing pixels were like the ones around them, which means your result will be blurry.
As a side note, old tube displays does not have a resolution, they can support various resolutions. We used to set resolution to our taste between speed and detail back then.
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Click to collapse
So why it doesn't get blurry on the G3 then?
If it's to save battery, I doubt you'll see much of a change.
The GPU is working on a smaller load but most of the time it's running at 200 MHz anyway. But I'm no expert, I'm just telling what I know and what I've experienced. I'll head over to the g3 thread to read more!
Reducing the number of pixels would help you to save battery if you are using a phone with AMOLED screen, sadly it is not the case with LG G2. So even by turning the resolution down, you are using pretty much the same amount of battery as you would with full 1080p resolution.
If you want to go ahead with it anyway, there are plenty of apps on the play store which does this. Just search "resolution" in the play store and you'll find them. However I don't think this will help your battery life at all, nor do I recommend it.
Late addition
Well, when i found out this was an option i just had to tinker. I have a G2 that is my daily driver and a S6 for back up. I changed it to 900x1600 480dpi and it works just fine. The camera touch focus is a little off, but otherwise it is sooper smooth now. I also throttle the CPU down. So both together I get a good experience and decent battery life. I know this is a late response, but to anyone out there with root and some lackluster performance might want to give this a shot. I needed to reboot once to correct some keyboard skewing. I also adjusted the height of the keyboard to compensate for the change in real estate. Works like a champ, no real noticeable degradation in viewing pics or videos. I'm going to try this on my Nook Hd+. It needs a shot in the arm (no pun intended).
villain222 said:
Well, when i found out this was an option i just had to tinker. I have a G2 that is my daily driver and a S6 for back up. I changed it to 900x1600 480dpi and it works just fine. The camera touch focus is a little off, but otherwise it is sooper smooth now. I also throttle the CPU down. So both together I get a good experience and decent battery life. I know this is a late response, but to anyone out there with root and some lackluster performance might want to give this a shot. I needed to reboot once to correct some keyboard skewing. I also adjusted the height of the keyboard to compensate for the change in real estate. Works like a champ, no real noticeable degradation in viewing pics or videos. I'm going to try this on my Nook Hd+. It needs a shot in the arm (no pun intended).
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it would be nice if you share a "how to" as well
i tried lowering the resolution on my tablet and G2 with some apps from the playstore - but only thing i got was an unstable device(s)...
desertmod1 said:
I hear they lower the res from 1440 to 1080 in the G3 so is there a way to lower the screen resolution in the G2 from 1080p to 720p?
I couldn't find anything about it in search.
Click to expand...
Click to collapse
download terminal
write in terminal :
su [ENTER]
wm size 720x1280 && wm density 220 [ENTER]
new density: new resolution * current dpi / old resolution ( for e.g. 720*1280*480/(1080*1920) = 213), altough i tested, and it seems that 240 is the best (for me), but it looks awful, for me, so i will go back to full hd + 410 dpi
ofc root required )
anyway, please share with us if it will be any battery life improvement
enginmanap said:
As a side note, old tube displays does not have a resolution, they can support various resolutions. We used to set resolution to our taste between speed and detail back then.
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Click to collapse
Now I miss those glory days of correcting CRT display alignment and freedom to changes aspect ratio/resolution beyond the DAC supported rate at the expense of mild irreversible eye's retina damage. Lol. :laugh:

[Q] Anyone know how to lower the resolution from quad hd to 1080p??

its just draining the battery ...i have no use for quad hd resolution
You've bought the wrong phone, me thinks... ?
macmobile said:
You've bought the wrong phone, me thinks...
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Click to collapse
...... i bought the phone for deepest blacks , saturated colors ., best available camera... removable battery , fast charging..good looking device.... bigger screen.... super developers support and S pen... but yeah you might be right i bought a wrong phone
Buy a iPhone next time .
oMaRcO said:
Buy a iPhone next time .
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Click to collapse
i dont think i like your tone young mahn.....
You can use NOMone Resolution Changer - 1080X1920, 480DPI is the best setting.
lnvincible said:
You can use NOMone Resolution Changer - 1080X1920, 480DPI is the best setting.
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Something I learnt is that if you lover the resolution you will NOT get any bump in your battery life. That's because the device upscales the 1080p res to 2K. Also, the processor is capable to run 2K 2D Contents (such as text, webview, certain UI elements etc) without any kind of problem. Only 3D contents such as games could be greatly affected by this.

Changing resolution

I can't find it, I heard it is possible since Android 7.0. So, is the option present in Axon 7?
I'm on A2017G (B01 Nougat 7.0) and it's possible, the setting is under Display
apocalypse_bg said:
I'm on A2017G (B01 Nougat 7.0) and it's possible, the setting is under Display
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That's only changing the font size, not the actual resolution
Sent from my ZTE A2017U using XDA-Developers Legacy app
There is no way to change the resolution only the display scale, and that's what this setting does
You can make it even smaller (or bigger) by setting a custom display scaling. Enable developer options -> then find a setting called smallest width. Then your custom value in it. For example I use 500. bigger values will make the screen show more content(make everything smaller)
Nik2424 said:
You can make it even smaller (or bigger) by setting a custom display scaling. Enable developer options -> then find a setting called smallest width. Then your custom value in it. For example I use 500. bigger values will make the screen show more content(make everything smaller)
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Do You mean rooting the phone?
BurakSefaSenturk said:
Do You mean rooting the phone?
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Click to collapse
no need for root. go in About phone, then tap build number 7 times. It'll enable developer options. This will appear in the advanced settings. then do as I said in previous post.
In terminal emulator:
Code:
wm size widthxheight
So it you wanted to change the resolution to 1080p:
Code:
wm size 1080x1920
Nik2424 said:
no need for root. go in About phone, then tap build number 7 times. It'll enable developer options. This will appear in the advanced settings. then do as I said in previous post.
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Yeah, but for what I know, Android 7.0 supports changing resolution, am I correct? What about 1080p, or 720p, what should I type into ,,width: section?
BurakSefaSenturk said:
Yeah, but for what I know, Android 7.0 supports changing resolution, am I correct? What about 1080p, or 720p, what should I type into ,,width: section?
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Click to collapse
zte took that option out sorry, try to use the adb shell/terminal commands posted above.
What ammount should I type to achieve 1080p or 720p?
BurakSefaSenturk said:
What ammount should I type to achieve 1080p or 720p?
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1080p: wm size 1080x1920
720p: wm size 720x1280
May I ask what the benefit is for lowering the resolution?
On some Samsung phones you can change the resolution.
The benefit for the battery is nearly 0%
...
Nik2424 said:
zte took that option out sorry, try to use the adb shell/terminal commands posted above.
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Click to collapse
But there is no way to type ,,x" into the smallest wide. By default, it is 360 dp
BurakSefaSenturk said:
But there is no way to type ,,x" into the smallest wide. By default, it is 360 dp
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Click to collapse
go to Settings > Advanced > Developer Options and change the smallest width from 360 to the value you need.
410 to 430 good for me... i think 550dp will change it to tablet mode.
---------- Post added at 11:17 AM ---------- Previous post was at 11:14 AM ----------
troy5890 said:
That's only changing the font size, not the actual resolution
Sent from my ZTE A2017U using XDA-Developers Legacy app
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Click to collapse
if you change the resolution (using build.prop) the stock apps won't scale good.. eg. Stock Dailer incall UI. ..
if you don't care abt stock appps.. root and change the build.prop thats the best option.
Try messing with the DPI. You can find some apps on the market that edit this value for you
can reducing resolution improve 3D gaming performance? like more fps. for example always get more than 30 fps which was not possible with high resolution.
vahid-749 said:
can reducing resolution improve 3D gaming performance? like more fps. for example always get more than 30 fps which was not possible with high resolution.
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Click to collapse
if you're not getting more than 30fps on games I'd recommend you to check the settings. turn VSync off, and if that still doesn't help just lower some setting.
You can get more FPS by reducing the resolution but it's a headache, a bunch of stuff breaks until you restore to stock resolution and restart the phone.
Newer games have a resolution slider
vahid-749 said:
can reducing resolution improve 3D gaming performance? like more fps. for example always get more than 30 fps which was not possible with high resolution.
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Click to collapse
Yes of course. If you lower the resolution (NOT DPI) the games will render at that lowered resolution, giving a performance boost. After change of resolution you should change the DPI as well so the icon, menu and app sizes arent too big or too small
GodOfPsychos said:
Yes of course. If you lower the resolution (NOT DPI) the games will render at that lowered resolution, giving a performance boost. After change of resolution you should change the DPI as well so the icon, menu and app sizes arent too big or too small
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Click to collapse
Still I don't recommend it at all. Capacitive keys break. Keyboards may get all messed up. and the performance boost is rather negligible
If you're gonna try, get ready to use mipop a bunch...

Lower Resolution Power Saving

Hey all,
I have bought the P10 Plus VKY-L29 and although it's a great phone, the battery life can be slightly erratic. To combat the issue I've tried the Lower resolution power saving mode but it doesn't seem to do anything - the resolution still stays at 2K
Does anyone else have an issue with the lower resolution power saving mode not working?
stoosh666 said:
Hey all,
I have bought the P10 Plus VKY-L29 and although it's a great phone, the battery life can be slightly erratic. To combat the issue I've tried the Lower resolution power saving mode but it doesn't seem to do anything - the resolution still stays at 2K
Does anyone else have an issue with the lower resolution power saving mode not working?
Click to expand...
Click to collapse
Your not going to notice lower resolution on your phone really because there isn't that much difference. ++ If you have viewing mode / density on small and you lower the resolution you aren't going to notice it. You'll probably only notice it if you put viewing mode on big so text and icons are very large and then let it go in ultra power mode. I personally have never tried it, maybe it isn't working but I'm saying you won't know the difference.
I get what you're saying however the thing is the mode is supposed to reduce the resolution from 2K to 1080p. Activating the mode it doesn't do so. .So the initial question still stands. Does the lower resolution power option actually work or is there an issue with my device?
stoosh666 said:
I get what you're saying however the thing is the mode is supposed to reduce the resolution from 2K to 1080p. Activating the mode it doesn't do so. .So the initial question still stands. Does the lower resolution power option actually work or is there an issue with my device?
Click to expand...
Click to collapse
Again, you're not getting what I'm saying. You're NOT going to notice the resolution change. It's different to your computer resolution as your screen is larger on your monitor. Lowering the resolution to save battery is a myth a lot of people rant about.
So again, the resolution is probably lowering but you're not seeing the difference.
XtraArrow said:
Again, you're not getting what I'm saying. You're NOT going to notice the resolution change. It's different to your computer resolution as your screen is larger on your monitor. Lowering the resolution to save battery is a myth a lot of people rant about.
So again, the resolution is probably lowering but you're not seeing the difference.
Click to expand...
Click to collapse
On EMUI 4.x the resolution physically changed and this was reported on the About phone screen under the resolution heading. In this case even with low resolution power saving on the resolution heading still shows as 1440x2560 so it clearly hasn't changed!
It doesn't matter about the size of the fonts changing when clearly the resolution hasn't changed at all. You would certainly notice the resolution change as it used to work on my P9 when changing from 1080p to 720p.
stoosh666 said:
On EMUI 4.x the resolution physically changed and this was reported on the About phone screen under the resolution heading. In this case even with low resolution power saving on the resolution heading still shows as 1440x2560 so it clearly hasn't changed!
It doesn't matter about the size of the fonts changing when clearly the resolution hasn't changed at all. You would certainly notice the resolution change as it used to work on my P9 when changing from 1080p to 720p.
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Click to collapse
Mate, going from 1440x2560 to 1080x1920 you will NOT see the difference!!! Again like i said, it may be broken but I'm telling you, the resolutions are identical. 720p from 108p is a bit of a leap as that's when you start losing HD. If you're that bothered, send it back in.
stoosh666 said:
Hey all,
I have bought the P10 Plus VKY-L29 and although it's a great phone, the battery life can be slightly erratic. To combat the issue I've tried the Lower resolution power saving mode but it doesn't seem to do anything - the resolution still stays at 2K
Does anyone else have an issue with the lower resolution power saving mode not working?
Click to expand...
Click to collapse
I have mate 9 pro and i have the same problem the screen stays on 2k, and i dont know why its too hard for the other guys to understand what you saying
Sent from my LON-L29 using XDA-Developers Legacy app
Akhayev said:
I have mate 9 pro and i have the same problem the screen stays on 2k, and i dont know why its too hard for the other guys to understand what you saying
Sent from my LON-L29 using XDA-Developers Legacy app
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Click to collapse
Unless you can, ( like the op ) show us through command prompt that your resolution is still on 2k when in ultra low power saving it's just your word against his. If you both feel that it is not scaling down. Contact huawei. Because ATM there's nothing any of us can do.
stoosh666 said:
Hey all,
I have bought the P10 Plus VKY-L29 and although it's a great phone, the battery life can be slightly erratic. To combat the issue I've tried the Lower resolution power saving mode but it doesn't seem to do anything - the resolution still stays at 2K
Does anyone else have an issue with the lower resolution power saving mode not working?
Click to expand...
Click to collapse
Did you find and way to fix it ? I have mate 9 pro and p10 plus and still having the same issue
XtraArrow said:
Unless you can, ( like the op ) show us through command prompt that your resolution is still on 2k when in ultra low power saving it's just your word against his. If you both feel that it is not scaling down. Contact huawei. Because ATM there's nothing any of us can do.
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Click to collapse
1. It doesn't bother me much but i noticed the same behaviour on my device, resolution does not change.
2. I don't know why you keep saying that one can't see the difference, that is not the point here, don't you get that? The point is that no matter if you actually can see difference or not the resolution DOES NOT CHANGE in the first place. When using a tool to show the current resolution it STILL says 2k regardless whether low resolution is being activated or not. Normally - and it DID work that way on the P9P - when you switch to low resolution the device should ask you to reboot and after that it would have the lower resolution, regardless of ultra power saving mode. It clearly does not work this way here, so there seems to be something wrong with this firmware-wise.
3. Afaik OP didn't ask for anyone here to do something, he merely asked whether other people are experiencing this, too.
4. OP, which firmware are you on currently?
I'm almost 100% sure it's not working properly. If it was I should be getting more than 4.5 - 5 hours of sot. Unless there's something going on with the hardware as compared to the Mate 9 that you just can't see in the specs.
XtraArrow said:
Your not going to notice lower resolution on your phone really because there isn't that much difference. ++ If you have viewing mode / density on small and you lower the resolution you aren't going to notice it. You'll probably only notice it if you put viewing mode on big so text and icons are very large and then let it go in ultra power mode. I personally have never tried it, maybe it isn't working but I'm saying you won't know the difference.
Click to expand...
Click to collapse
I've got nothing to contribute to the thread but I've something to say to you. I've been using 2k 5.5 inch screens since the LG G3 and side by side with smaller 1080p screens the difference is noticeable to not only me but also to my friends who own the 1080p phones.
I think you're trying to say that the phone may well have switched down to 1080p resolution but OP can't tell that. I'm not sure I buy that but I'll get back to you on that.
i am experiencing the same thing on my P9 after update to latest EMUI and P10 since bought. Was working on honor 6, and my p9 before upgrade. so EMUI should be the culprit since different phones having same issue. hope they will fix it as soon as possible. i need to get extra juice from my p10!
some people think they are too smart. Even if OP cannot see the difference, that isnt the point. We are curious whether the feature is malfunctioned. and yes, u can check the current resolution on about phone. Do urself a favor to try and understand before bashing repetitively. it looks too stupid, im sorry.
Yes you can't really tell the difference when it's 1080p because it's being upscaled to a native 1440p screen anyway. There will be a worthwhile difference in battery life from doing that though. It's why the galaxy s8 is configured to do it out of the box.
Those guy who did not have our devices are useless here. I got 2 Honor V8, and before update to Android 7. I noticed the difference when I down the resolution. But when updated to Android 7, resolution is the same whatever I do. I have Honor V8 knt al10 and knt al20. Hope the next update will solve this issue. Regards
XtraArrow said:
Mate, going from 1440x2560 to 1080x1920 you will NOT see the difference!!! Again like i said, it may be broken but I'm telling you, the resolutions are identical. 720p from 108p is a bit of a leap as that's when you start losing HD. If you're that bothered, send it back in.
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Click to collapse
stoosh666 said:
On EMUI 4.x the resolution physically changed and this was reported on the About phone screen under the resolution heading. In this case even with low resolution power saving on the resolution heading still shows as 1440x2560 so it clearly hasn't changed!
It doesn't matter about the size of the fonts changing when clearly the resolution hasn't changed at all. You would certainly notice the resolution change as it used to work on my P9 when changing from 1080p to 720p.
Click to expand...
Click to collapse
If the resolution really changed, when you take a screenshot IT MUST be 1080p instead of 2560, otherwise mean resolution it's still on 2K, and I can confirm that the function to lower the resolution of the screen at the moment is not working > it's not changing the resolution of the screen.
It has nothing to do with "you are not going to notice the difference"
you can do tests on your pc monitor, when you lower the resolution your screenshots will be smaller
I am trying as well to drop the resolution to 1080p and it's currently not working.
Noticed the difference in some apps.
Rommco05 said:
Low resolution works only in games and some apps, not in system
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Click to collapse
Question: did someone test the battery difference?
I know that the prediction is about 2+ hours in my P10, but does that translate do the real world?
How to lower the resolution in P10 to 720p?
I don't use the low res setting and Accubattery still reports over 8 hours SOT. Mind you, I don't use my device very heavily - maybe browsing and music. Funny thing though, my "new" phones only has about 93% of a full battery's worth of capacity... Hmm...
---------- Post added at 06:11 AM ---------- Previous post was at 06:10 AM ----------
bauer18 said:
How to lower the resolution in P10 to 720p?
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Click to collapse
Just the "low power resolution" setting for now, saw screenshots of an actual setting to change coming in EMUI 8/Oreo.

Native dpi of S5 screen

What is the native dpi of the S5 screen (which may not be the default dpi)? I see 432 and 480 mentioned on the internet, but am unsure which is the actual native dpi that matches the screen size and resolution.
480 according to these topics: https://www.reddit.com/r/galaxys5/comments/4ubopf/what_is_the_default_dpi_of_the_s5/
https://forum.xda-developers.com/att-galaxy-s5/general/guide-change-dpi-s5-t2854750
that's why i hate stock roms of s5 when u change the dpi the camera and dialer size becomes unfit to the screen
I'm using samyux it has a fine dpi small but not smaller...
Its 480. I'm running mine at 380.
godkingofcanada said:
Its 480. I'm running mine at 380.
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Click to collapse
Why would you want to run it lower? Does it save battery life or something?
Elfere said:
Why would you want to run it lower? Does it save battery life or something?
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Fit more onto the screen

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