Disable Pixels to save battery / increase performance? - Galaxy S 4 Q&A, Help & Troubleshooting

Is there any app/mod that can disable some pixels on the 1080p screen to get e.g. 720p resolution?
If only half of the pixels are active then we would save lots battery and maybe get a performance increase?

I am 99% sure that can't be made
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Related

YouTube in lower quality?

I'm unsure what quality YouTube is playing at in default but its much too high for my internet speed at my current location. On my computer I play at 480p which is fine. I have a feeling that the Nexus 7 is trying to play it at 720 or 1080 because it takes forever to load anything.
Anything I can do about this? I couldn't find a setting to change it.
Don't think so. Only way I've been able to get HQ or low quality was to share connection with my phone via Bluetooth. basically any connection that wasn't WiFi.
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When playing a YouTube video in landscape view lower left hand corner will give you an idea of the resolution. HD will be in 720p HQ is 480p and if it is unchecked it drops down the next lower resolution. If it is showing HD unchecking it should drop you down to 480p.
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Power Saving Mode Tip - What I learned

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I was messing around with the power saving mode just now. I realized that when I tick-on "Screen power saving" I can notice a huge slow down on the whole ui. Now remember everything else is ticked-on including the cpu limiter. But with "Screen power saving" turned off, I couldn't tell the difference between power saving mode and non-power saving mode. Which leads me to conclude the "Screen power saving" is doing some major cpu calculation which might actually not be so great as it defeats the purpose of power saving.
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boodies said:
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I was messing around with the power saving mode just now. I realized that when I tick-on "Screen power saving" I can notice a huge slow down on the whole ui. Now remember everything else is ticked-on including the cpu limiter. But with "Screen power saving" turned off, I couldn't tell the difference between power saving mode and non-power saving mode. Which leads me to conclude the "Screen power saving" is doing some major cpu calculation which might actually not be so great as it defeats the purpose of power saving.
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Click to expand...
Click to collapse
Even I noticed lag while powersaving is on .......
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That power saving mode and blocking mode are the stupidest two things that they pushed on android.. I never used thise things. Also, that screen brightness adjustment in notification menu is so annoying,and I never touched it. And whyv they added those extra toggles in notification menu next to sound,wifi ,mobile data,etc so now everything slides from side to side and I always press something that I don't want. Or maybe there is a possibility to turn those off and I can't find how to..
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defenderko said:
That power saving mode and blocking mode are the stupidest two things that they pushed on android.. I never used thise things. Also, that screen brightness adjustment in notification menu is so annoying,and I never touched it. And whyv they added those extra toggles in notification menu next to sound,wifi ,mobile data,etc so now everything slides from side to side and I always press something that I don't want. Or maybe there is a possibility to turn those off and I can't find how to..
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Click to expand...
Click to collapse
Toggles can be customized even on stock.
And power saving mode really does save battery, and its customizable.
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adytum said:
Toggles can be customized even on stock.
And power saving mode really does save battery, and its customizable.
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Click to collapse
It saves battery but it destroys performance. It is acting like galaxy ace when on power saving mode . Please show me how to customise the toggles, because I can't find out how after 10 days of looking into the settings. Can I move the brightness adjuster too? Thanks
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defenderko said:
It saves battery but it destroys performance. It is acting like galaxy ace when on power saving mode . Please show me how to customise the toggles, because I can't find out how after 10 days of looking into the settings. Can I move the brightness adjuster too? Thanks
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Click to expand...
Click to collapse
Dear ...go to settings ...display...notification panel...and yes u can remove the brightness adjuster too from thos setings itself
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manish21nov said:
Dear ...go to settings ...display...notification panel...and yes u can remove the brightness adjuster too from thos setings itself
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Click to expand...
Click to collapse
Maybe I am not seeing it...
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defenderko said:
Maybe I am not seeing it...
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Click to expand...
Click to collapse
Gues ur on 4.1.1 .......the options are available in 4.1.2
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manish21nov said:
Gues ur on 4.1.1 .......the options are available in 4.1.2
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Click to collapse
Yap, I am on 4.1.1 ! Thanks
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defenderko said:
Yap, I am on 4.1.1 ! Thanks
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Click to expand...
Click to collapse
Sorry, didn't realize it is a 4.1.2 feature!
But I don't understand how you can say that power saving mode destroys performance, I hardly notice any difference in normal usage. It's basically just the cpu locked at 1 ghz.
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The screen power saving mode does something with the screen's refresh rate, if you have it on you will notice the screen flickering in a very fast rate, so the slow down in the UI is probably because of the screen is skipping every other frame making it seem like it slowed down when it is not
mmk92 said:
The screen power saving mode does something with the screen's refresh rate, if you have it on you will notice the screen flickering in a very fast rate, so the slow down in the UI is probably because of the screen is skipping every other frame making it seem like it slowed down when it is not
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Does make sense, but would that really save a lot of Battery? I think the sweet spot now is to just tick on CPU Limiter while leaving everything off. [Obviously people who use CPU apps don't really need this feature as they can modify the CPU even more] Too bad I really don't use this feature much as of yet but will report back if I find anything new. I'll try to use the phone for a couple days with just the CPU Limiter ticked on this weekend.
If you want to save power on your Note 2, you might use SetCPU, Screen Filter & Juice Defender Plus, these apps help me a lot to save battery.
Because it limits your screens fps to like 40 or 30
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edwinpang said:
Because it limits your screens fps to like 40 or 30
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I strongly believe it is lower then 30FPS.. Perhaps below 25fps.
HOWEVER if you uncheck Screen Power Saving, the FPS returns back to normal. I usually use Power Saving mode with only Power savings on, this way performance is not affected.
What's interesting is that I've been testing power save mode on some pretty high end games like modern combat 4 and nfs most wanted and you only lose 4-8 fps on average, but it still remains over 30 fps.
This is with all the options ticked in power save mode. For gaming while off the charger, it would help extend the battery quite a bit.
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EP2008 said:
What's interesting is that I've been testing power save mode on some pretty high end games like modern combat 4 and nfs most wanted and you only lose 4-8 fps on average, but it still remains over 30 fps.
This is with all the options ticked in power save mode. For gaming while off the charger, it would help extend the battery quite a bit.
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Click to collapse
If that is true, I hardly find a reason to NOT use power savings until more graphics demanding games come out. I'll also test it out on Deadzone.
boodies said:
If that is true, I hardly find a reason to NOT use power savings until more graphics demanding games come out. I'll also test it out on Deadzone.
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Click to collapse
Well those extra fps could come in handy, but if power save gives extra playing time then it might be worth the slight loss.
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EP2008 said:
What's interesting is that I've been testing power save mode on some pretty high end games like modern combat 4 and nfs most wanted and you only lose 4-8 fps on average, but it still remains over 30 fps.
This is with all the options ticked in power save mode. For gaming while off the charger, it would help extend the battery quite a bit.
Sent from my Galaxy Note 2 using Tapatalk 2
Click to expand...
Click to collapse
Exactly my experience too.
Also, it's not the fps getting capped, lower fps is just a result of capped cpu frequency, but the refresh rate is capped, which could lead to a certain amount of flickering even though I cannot see it. Correct me if I'm wrong.
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Lower brightness settings

Hi
Could someone told me if there is a mod or some settings to do in order to get a brightness lower than the min value, I do use the phone sometimes at night but I found out that the min value is too bright for me, compared to my xperia S, which is very low..
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Is this maybe that thing that you're looking for?
Screen Filter
This app makes your colours look washed out, but makes the backlight less intense.
Thank you, screen goes a little grey but it's fine
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arc_u said:
Hi
Could someone told me if there is a mod or some settings to do in order to get a brightness lower than the min value, I do use the phone sometimes at night but I found out that the min value is too bright for me, compared to my xperia S, which is very low..
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Click to expand...
Click to collapse
There is an app called LUX, which can reduce you brightness to "0". It also does a much better job of auto brightness control that Android does in general, so your battery should last longer

[Q] Are you satisfied while watching videos on SG4?,

Hi guys, please, write here your experiences when watching videos/movies on SG4 screen. Its what you expected, or do you notice some bad disturbing issues like smearing etc.? Do you watch at night as well, any problems with display? Thanks for Yours replies in advance! I have SG2 now, I would like to know if watching movies steped up to higher level
Watching movies is just great. No smearing and the full hd screen is so beautiful (compared to a previous owned gs2 and gs3).
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It's just awesome. The picture is sharp as a razor.
There's just one small glitch: when you're watching a movie with dark areas, you may see a difference in areas where pixels are pure black. I mean, you do notice when the leds are turned off. But it's not that much of an issue.
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Yes!
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Its absolutely an amazing experience watching videos on s4 the only probl3m I've had is the black patches appear in very dark situations u can minimize it by setting ur screen mode to movie..
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noufel said:
Its absolutely an amazing experience watching videos on s4 the only probl3m I've had is the black patches appear in very dark situations u can minimize it by setting ur screen mode to movie..
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Click to expand...
Click to collapse
Thanks. Black patches, maybe because of smearing issue? Might will help use of free app Screen Adjuster - when set RBG values +5 / or set constrast value -10. Could you please try and let me know?
With the screen adjuster on smearing/ghosting/black patches whatever you wanna call it is gone but blacks look grey..
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Coming from an S2, i am incredibly satisfied with the S4 screen.
The blacks look incredible and everything is razor sharp in HD. Also, the phone is very comfortable to hold since they've packed a huge 5" screen into a fairly small device.
Coming from an s1, the screen, holy f*** its gorgeous! Everytime I stick it on its dock to charge and it lights up at full brightness Its just beautiful!
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Reduce s4 resolution

In 4.3 the resolution of s3 worked pretty good however in kitkat it won't
Anyone got a prefect 720p resolution and dpi settings for this device as setting a 1080p resolution is just a waste of battery and processing power
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Any help
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sahilg009 said:
Any help
Click to expand...
Click to collapse
The screen by itself is the biggest battery drainer of the whole device. The screen itself is 1920x1080.
If you use software to put it into 1280x720 or even lower the screen itself will still be 1920x1080.
All the 1920x1080 pixels need to be enabled, regardless of the resolution set by the software.
Ergo: has no use, to save battery. Best way to conserve battery is to leave the screen off.

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