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Ill make this plain and simple, im having really high display percentage on my N1 and i cant figure it out. As u can see the picture below, the display % is at a 81%!!! and here is the thing, i have only 4 widgets running. At the time that i took the pic i had the brightness at 30% but even if i have it at 0% display % will always be around 60-75%.
This is what i have on my N1:
Rom: cyanogen 506
Kernel: persiansown uv-oc
So this being said, this display problem is affecting my battery. i get an average of 12-16 hrs which its pretty good, i think but i used to get 32-36 hrs. Can anyone know what could be the problem? Cuz im totally stumped
do you keep your screen on for long periods of time?
blaboy51 said:
do you keep your screen on for long periods of time?
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oh no, i turn it off when i dont use it. i have the screen timed out at 2min, 1 min, 30sec, ect.. and still get same results.
correct me if im wrong, but i think the battery status (usage) is staggered. Meaning itll post every thing that uses the battery and will display in percentages and will total to =/- 100%.
So if the rest of the phone is only using 19% then your screen would then display around 80%. Lets say the rest of the phone is using 50%, then your battery would then display around 50% of battery use. But its still using the same power consumption with the two instances.
again, correct me if im wrong, i briefly remember reading that somewhere. Cause i guess someone had been using the phone with 50% brightness and when he decided to put it at about 10% he actually increased 2% on his display usuage. hahaahha!
correct me if im wrong, but i think the battery status (usage) is staggered. Meaning itll post every thing that uses the battery and will display in percentages and will total to =/- 100%.
So if the rest of the phone is only using 19% then your screen would then display around 80%. Lets say the rest of the phone is using 50%, then your battery would then display around 50% of battery use. But its still using the same power consumption with the two instances.
again, correct me if im wrong, i briefly remember reading that somewhere. Cause i guess someone had been using the phone with 50% brightness and when he decided to put it at about 10% he actually increased 2% on his display usuage. hahaahha!
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I hear what ur saying, so theres no way around it.
Sent from my Nexus One using the XDA mobile application powered by Tapatalk
On Desire ROMs it's only 17%.. or sometimes lower. I don't really care though.. Lol.
It is all relative, always adding up to 100%. If you're phone/wifi/3g/cell percentage is really low, then the display will be really high. The higher the display is shows how good the rest of the system is at conserving power. The display is the largest battery drain on the system. If something else was higher, or even close to the display use after you've used the display for a while I'd be scared something was wrong.
Let's say you charge your phone, never turn on the display, and leave it sitting for 5 hours. Then check percentage. Cell idle, Android OS, and things like that will be the largest, totalling 100% battery use. But your battery may only be down 10%. Then use it for an hour with the display on, display will suddenly jump up to 80% and everything else down to 20%.
Or in other words. Let's say you have used 20% of the battery (battery level is down to 80%) On the battery usage screen display takes up 90% of that, and the rest of the system 10%. That means out of the 20% you used of the battery, 18% was used by the display, and 2% by everything else.
People think Cyanogenmod is bad because the display is so high compared to other mods, but it means that the rest of the system in cyanogenmod is actually more power efficient than the others. So display will naturally be higher relative to everything else.
I believe this is a known issue with 2.1
so i guess in a way its saving power,right? since it is not didtributing power all over the place.
i think its because of the Screen AMOLED is probably a battery eater, i think its fixed and its called Super AMOLED
Hello. Out of curiosity, I decided to see the battery usage for my nexus 7. It said that the screen took up about 60% of battery life. My brightness is on auto, which is about a quarter of the full brightness. I do lock my screen. Is it normal for the screen to take up this much?
As far as I know, it is normal for tablets. Since they have huge screens that sap up a lot of juice. It is possible to hit 10 hours of screen time. I've watched youtube for around 80 minutes and it only knocked down to like 87%.
One issue I see is the deep sleep mode drains too much, and the maps application is always taking up like 15% of my total power usage. I'm stumped on that.
So, I had a situation where the first G4 i received was defective and I had another shipped, so for the weekend I had 2 G4's.
Considering all the back and forth I've read about the inconsistencies among phones, I decided to see if I could find any. The most glaring difference was between the screens on both. One had a cooler bias, while the other had a noticeable yellow tint. I much prefer the cooler bias screen. Second, I tested both phones for lag, stutter, missed touches, etc and couldn't find any difference between the two - both were basically flawless. Last was the most interesting though - battery run down. I ran 4 battery rundowns, switching the batteries back and forth so no consecutive test was run with the same battery. Both phones were charged with the stock charger (which BTW is definitely faster than a standard charger)
Tests were run in airplane mode, wifi ON, auto sync off, with a 1 hour YouTube Video on loop...
Rather than bore you with details, I'll leave you with a general summary...
-1 of the batteries continually got to 85% while the other was at 89% - this happened all 4 times.
-The battery which got to 85% first, took longer to 50% - enough so that it moved past the other battery which was between 47-49% at this point, and both batteries basically drained at the same rate for the rest of the time, and the battery with the faster initial discharge rate outlasted the other by approx 20 minutes each time.
-Each battery was tested at Auto, 50%, 25% and (using Lux) -10%, and here is what I found most interesting.... None of the brightness levels seemed to have any effect on battery life. That is, each phone, with each battery, drained at the same rate whether it was at 50% brightness, or at -10% brightness. The longest SOT I achieved was 7hrs 58min; again that's with all but WiFi off, looping the same 1hr YouTube video.
I'm guessing that's what LG means when they say the processor/GPU combo is "optimized" for this phone?? Now, I don't know if the same will hold true for 100% brightness levels, but the real world situation for 100% brightness is not really practical. I tested it on brightness levels I feel my phone would be at most of the time, then added the -10% as an experiment to see how much time it would add.
The battery on this phone is generally good, but some things drain the battery more than I think they should. Standby drain is great (3-5% overnight) but the screen murders the battery. It drops 1% every 4-5 minutes of light tasks such as browsing social media and Chrome, but the drain gets much worse with anything that's more demanding on the processor. For example, 23 minutes of gaming on my PS1 emulator killed 10% of battery, and just 13 minutes of Crossy Road killed 6%.
Is there any way to improve battery life when the screen is on, or is this normal power consumption for a 2k display like this one? For reference, I have it set on auto brightness at the lowest setting to save battery already. Also, my phone gets 4-5 hrs SOT with moderate usage and maybe 30min-1hr of gaming. If it's the latter, I'd take a 1080p screen any day for better battery life...
Turn the brightness down.
Sent from my DROID Turbo 2
imnuts said:
Turn the brightness down.
Sent from my DROID Turbo 2
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I said I already have it set on auto brightness at the lowest setting
Turn off auto brightness. Other than that, the screen is going to draw a fixed amount of power. Also, resolution has very little to do with how much power the screen uses, it's all panel size and brightness.
Sent from my DROID Turbo 2
Pretty much the only knob you have is display brightness.
Sent from my XT1585 using Tapatalk
imnuts said:
Also, resolution has very little to do with how much power the screen uses, it's all panel size and brightness.Sent from my DROID Turbo 2
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I thought resolution has everything to do with how much power the screen uses? The way I understood it a screen with a given resolution has the same amount of pixels whether it's 5.5" or 5.7" or some other size, hence phones with different size screens but the same resolution having different PPI's.
JasonJoel said:
Pretty much the only knob you have is display brightness.
Sent from my XT1585 using Tapatalk
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I turn it on only when I'm outside. Aside from affecting power draw due to brightness, does auto brightness also draw extra battery from having to operate the light sensor constantly as well?
Other than that, I've already been doing everything you guys have suggested. Do you all experience the same type of drain that I do?
The backlight is the primary power user in the screen. It doesn't care if there is 1 pixel or 5 million. The GPU will use more power at higher resolutions, but a 5.5" FHD screen will use nearly the same power as a 5.5" 4K screen.
Sent from my DROID Turbo 2
But OLED displays such as the one on the Turbo 2 don't have backlights, so the higher the resolution, the more pixels the battery has to light up and the more it drains the battery?
The pixels are smaller, and there is less power use per pixel than on a lower resolution display. Will it drain more power? Yes, but the amount is likely negligible.
What I would recommend
I know a little about a lot, When it comes to Android phones and phones in general,
The auto brightness feature always has an effect on battery life I always tell people it is much better to set this manually and to change it when it's needed. Also more modern phone os's allow this setting to be toggled quite easily. As to what screen panel uses more power I don't know a lot about that but I would have to agree with the idea that the higher the resolution the more power it draws. Good luck to you and hopefully we see marshmallow soon around the globe!
Okay. I've also noticed that the screen drains power a lot slower once battery level is below 30%. Has anyone else experienced this? Regardless, I'll calibrate my battery today and report back if it makes any difference or not.
You could also try Lux, it has a lot more options when it comes to auto adjusting the screen.
What are you guys seeing as "normal" sot? I know there are many variables but I also find that at the 2.5 hours the phone has been off the charger, I'm already at 75% with only 1 hour of sot. I am stock with power saver turned on even and no rogue apps listed in Gsam Battery Monitor. Bought the phone on Friday..... Call me confused.
I'm getting about 4 to 4 and a half hours SOT. Seems like the display on the HTC 10 is a major power hog.
In terms of optimization they did a fantastic job as my radio is only listed as using 3% of my total battery and app usage is only 21% according to GSAM, meanwhile Screen has used 72% of my battery, and I tend to run the display at a pretty low brightness (about 20-25% brightness) I have 22% battery remaining and screen on time so far of 3:38
Running full brightness all day without power saver, my record so far is 4.5 hours, generally though I only need about 3 hours or so out of it per day, and 3 or 3.5 hours is my average.
How's your signal strength?
I guess I am around a similar time frame then. I hit 5 hours yesterday but like you, the screen is pretty low and it still eats up the battery pretty good. I guess Ill have to "optimize" a little better.
Signal strength is not great. I do bounce around band 25,26, and 41 quite often but my signal strength meter under the battery settings is a mess of a rainbow. Here's to an update heading our way soon...