[Q] Auto Screen Brightness uses CPU (and effects performance)? - T-Mobile LG G2x

Is it true that setting the Screen Brightness to AUTO means more CPU-usage?
This might bot be significant, but interesting non-the-less
thx

benyben123 said:
Is it true that setting the Screen Brightness to AUTO means more CPU-usage?
This might bot be significant, but interesting non-the-less
thx
Click to expand...
Click to collapse
I would imagine it would use a little more CPU, but I leave it on all the time and I never notice a dip in performance.
Sent from my Bionix G2x

From what I've read the auto brightness only effects(negatively) your battery life. But I haven't tested so I don't know for sure. Mine isn't on because most of the time it can't decide between bright or not, which is really annoying

Related

[Q] Auto-brightness too dim?!

I noticed after playing a bit with my TF that the auto-brightness is a bit too dim than what I'd like. Definitely not nearly as bright as my EVO, iPad, or Nook Color. I ended up setting it fixed at half brightness. Anyone else agree/disagree?
I agree, it's a bit on the dark side but its not too bad.
Autobrightness is calibrated poorly on pretty much every device unfortunately, I'd guess the Transformer isn't all that different.
http://www.displaymate.com/AutoBrightness_Controls_2.htm
I think the TF's screen is just dimmer as a whole (this is compared to my iPad 2). I don't mind it when doing things like surfing and email, etc. It only bothers me when I'm watching a movie because I have it set to about 90% brightness, which is pretty much even with my iPad 2 set at 60%, and the light bleeding is more apparent on the TF when set to that (this also makes the little home task bar buttons on the stock movie player more apparent as well. Why can't there be a movie player that just shows the movie and nothing else?)
I guess it makes sense though since the TF screen is bigger than the iPad 2's. Like in TV's; the smaller the screen, the brighter and better contrast they'll be.
I saw this also. I have auto brightness turned off and have it 1 click before max brightness.
I wonder if it could be dirt or grime covering the sensor next to the camera?
akarol said:
I noticed after playing a bit with my TF that the auto-brightness is a bit too dim than what I'd like. Definitely not nearly as bright as my EVO, iPad, or Nook Color. I ended up setting it fixed at half brightness. Anyone else agree/disagree?
Click to expand...
Click to collapse
I agree. I don't know why they don't let user pick the initial brigtness and based on that, adjust the lighting. It seems like an easy thing to do.
nxp3 said:
I agree. I don't know why they don't let user pick the initial brigtness and based on that, adjust the lighting. It seems like an easy thing to do.
Click to expand...
Click to collapse
I thought it never went below the value you set it at just prior to turning on AUTO.
IE- If you have it set at 50% and turning on auto it'll never go below the 50% mark.
I haven't messed about with auto since my first firmware so maybe they changed this in later ones.
jimbob1971 said:
I thought it never went below the value you set it at just prior to turning on AUTO.
IE- If you have it set at 50% and turning on auto it'll never go below the 50% mark.
I haven't messed about with auto since my first firmware so maybe they changed this in later ones.
Click to expand...
Click to collapse
I'm pretty sure it's reverse, as in you set the bar to the highest setting you want and it adjusts to the room settings without exceeding the highest point you set. That's how it works in my iPad 2 at least.
Edit: This is, indeed, how it works on the TF
songmeesay said:
I'm pretty sure it's reverse, as in you set the bar to the highest setting you want and it adjusts to the room settings without exceeding the highest point you set. That's how it works in my iPad 2 at least.
Edit: This is, indeed, how it works on the TF
Click to expand...
Click to collapse
Not true. I just set mine to the lowest setting, then turned on the auto. It still brightens when there is light present.
If you start testing with auto brightness, one thing that you need to be aware of that makes it hard to test is that the TF checks to see if it should increase brightness frequently, but it only checks to reduces brightness after the screen goes to sleep or a power off. So once it is bright it seems to stay that way.
dmeehl said:
Not true. I just set mine to the lowest setting, then turned on the auto. It still brightens when there is light present.
Click to expand...
Click to collapse
I stand corrected. Looks like Auto, truly is, auto no matter where you set your point in the bar. I just set it on the highest and then hit auto and went into a darker part of the room and it did dim the screen down, and I did the reverse like you did and it adjusted brighter in a higher lit part of the room.
brachiopod said:
If you start testing with auto brightness, one thing that you need to be aware of that makes it hard to test is that the TF checks to see if it should increase brightness frequently, but it only checks to reduces brightness after the screen goes to sleep or a power off. So once it is bright it seems to stay that way.
Click to expand...
Click to collapse
I don't know if that is true, because if that was the case, it should be brighter most times. and less likely to dim, but I'm having the opposite effect.
So what's the final verdict. Will AB limit itself to whatever manual brightness you had set as the max or min?
akarol said:
So what's the final verdict. Will AB limit itself to whatever manual brightness you had set as the max or min?
Click to expand...
Click to collapse
From the testing I did, AB bypasses any setting you put on the bar and just adjusts to room light conditions.
I just bought a B60 serial TF and it has the dim auto brightness issue too.
I have also experienced this dimmer than what I want the brightness to be when I set to auto issue. So I revert back to the default brightness setting that came with Android 3.1. Much better on my eyes.

[Q] Screen Brightness Level?

Is there any way to calculate the maximum Nits of the Desire S screen? Or is this published somewhere?
Thanks
According to GSMArena, the max brightness on a white screen is 193 nits... that sounds horribly low, even the Incredible S and Sensation, which I thought use the same SLCD, are 275 and 438 respectively. Why is the Desire S so low?
Can anyone shed some light on this please? Or is there any way to push it past the maximum brightness available in Android settings?
Just put it on auto-brightness...
aajk said:
Just put it on auto-brightness...
Click to expand...
Click to collapse
No I mean is there any way to push the screen beyond 100%, maybe using some kind of hack? Because surely it should be able to reach the brightness of the Incredible S, which uses the same screen?
djsubtronic said:
No I mean is there any way to push the screen beyond 100%, maybe using some kind of hack? Because surely it should be able to reach the brightness of the Incredible S, which uses the same screen?
Click to expand...
Click to collapse
Hang on a second...I don't see what you trying to achieve out by this?
Apart from in direct sunlight the screen is easily bright enough. We spend most of the time trying to minimize the screen brightness in an attempt to minimize the biggest battery consumer - which is the screen. I've read several posts complaining that the Auto-Brightness setting is in fact too bright and several people have hacked the code so that it displays dimmer settings by default.
So why would you want a brighter screen? do you live a desert?
I'm not intending to have a pop, just trying to understand, if it's simply because our device scores less than the others....Who cares!
ps
Whats a nit? I thought that was something children get in their hair?
ben_pyett said:
Hang on a second...I don't see what you trying to achieve out by this?
Apart from in direct sunlight the screen is easily bright enough. We spend most of the time trying to minimize the screen brightness in an attempt to minimize the biggest battery consumer - which is the screen. I've read several posts complaining that the Auto-Brightness setting is in fact too bright and several people have hacked the code so that it displays dimmer settings by default.
So why would you want a brighter screen? do you live a desert?
I'm not intending to have a pop, just trying to understand, if it's simply because our device scores less than the others....Who cares!
ps
Whats a nit? I thought that was something children get in their hair?
Click to expand...
Click to collapse
It was partly curiosity (as I was under the impression that the SLCDs should similar, if not the same, brightness levels) and partly because I find myself in sunny situations where I can't see the screen quite often.
And a nit is basically 1 candela per square meter, a measure of screen brightness.
Well, I have it set to auto brightness, but even when on full, it doesn't take much sun - take today, overcast bright - to render the screen all but unreadable.
al89nut said:
Well, I have it set to auto brightness, but even when on full, it doesn't take much sun - take today, overcast bright - to render the screen all but unreadable.
Click to expand...
Click to collapse
I'm not going to disagree with you on that , as I myself also find the device pretty un-usable outdoors....even in the UK weather. Although it is possible when at full brightness.
In fact I'm pretty sure that I've simply trained myself not to use the phone outdoors just for that reason.
So back to my original query
Does anyone know any type of hack that allows pushing the brightness beyond 100%?

Very aggressive auto brightness

I have the brightness turned almost all the way down then I turn it on auto. Is this the correct way to set it? It seems very bright even set so low.
brianfields33 said:
I have the brightness turned almost all the way down then I turn it on auto. Is this the correct way to set it? It seems very bright even set so low.
Click to expand...
Click to collapse
It definitely is too bright, i agree. I'm just putting together a nice setup for the Lux app, and hope that Google will make it a little less aggressive and therefor more battery-friendly
I noticed this as well. I just turned it down and left it (no auto).
Luxferro said:
I noticed this as well. I just turned it down and left it (no auto).
Click to expand...
Click to collapse
I thought about doing this, but then it will be hard to see in bright sunlight.
brittonberkan said:
It definitely is too bright, i agree. I'm just putting together a nice setup for the Lux app, and hope that Google will make it a little less aggressive and therefor more battery-friendly
Click to expand...
Click to collapse
I've never used Lux. Could you share the profile if possible when it's complete?
brianfields33 said:
I've never used Lux. Could you share the profile if possible when it's complete?
Click to expand...
Click to collapse
Sure thing, check back a little later please man, what were the folks at google thinking when they made these settings...
Gesendet von meinem Nexus 5 mit Tapatalk
Agree the screen is way too bright out of the box. Interested in your lux config as well
Sent from my Nexus 5 using Tapatalk
garrisj said:
Agree the screen is way too bright out of the box. Interested in your lux config as well
Sent from my Nexus 5 using Tapatalk
Click to expand...
Click to collapse
I'll have it done in a few hours. The dark values are fine but i need to wait for daylight
Gesendet von meinem Nexus 7 mit Tapatalk 4
brittonberkan said:
Sure thing, check back a little later please man, what were the folks at google thinking when they made these settings...
Gesendet von meinem Nexus 5 mit Tapatalk
Click to expand...
Click to collapse
They were outside in California during the summer in the day and in an overly bright and cheerful Google headquarters during the night. They forget not everywhere has retina burning light levels
I've noticed that iOS, Touchwiz and a few other vendor Android skins implement a sliding-scale auto-brightness: You can enable auto, but also slide the overall average brightness up and down. This is a simple solution for varying comfort levels: Brightness fiends can tune the auto higher and those with sensitive eyes can tune it lower. I am surprised stock Android has yet to implement this.
I found auto brightness to be a bit erratic. I'm sticking with manual brightness.
Sent from my Nexus 5 using xda app-developers app
Here are my lux settings. At very bright areas you might have to add a few steps but it works well for me in darker, dimmer areas
https://docs.google.com/file/d/0B7IQuH022o2GSTAyWGtWTnhmaEU/edit?usp=docslist_api
I'm using dynamic mode
Edit: Sorry it apparently wasn't publicly available, but it is now
Have any of you had your brightness fluctuate from higher to lower? I don't remember the n4 doing that only. I thought android only went from low to high.
I actually want the opposite. I set my brightness all the way high in manual but I hate that automatic dimming. Can I get that fix? All I want is to work like my HTC One where I set the brightness all the way high and never saw the screen dim itself automatically. Please help
jbecerril said:
I actually want the opposite. I set my brightness all the way high in manual but I hate that automatic dimming. Can I get that fix? All I want is to work like my HTC One where I set the brightness all the way high and never saw the screen dim itself automatically. Please help
Click to expand...
Click to collapse
So yours is dimming itself as well correct? Pheww.. I'm not crazy
digitalsmoke said:
So yours is dimming itself as well correct? Pheww.. I'm not crazy
Click to expand...
Click to collapse
Yeah, and i hate that. I am not battery crazy like some other users, all i want is a bright screen regardless what time of the day it is. 100% brightness all the time. Can Auto brightness be turned off? Otherwise, and I hate to say it, but will going back to the One until this gets fixed.
auto brightness is terrible
the screen become yellow and green look while the brightness is low
only 100% can present the true white color
compare with htc one, i think one is better performance
anyone get the yellow tint problem?
brittonberkan said:
It definitely is too bright, i agree. I'm just putting together a nice setup for the Lux app, and hope that Google will make it a little less aggressive and therefor more battery-friendly
Click to expand...
Click to collapse
+1 for Lux. I had the battery-guzzling HTC Amaze ("you'll be AMAZED how fast your phone dies!" ). Lux would almost double my battery life when I programmed it with ultra-conservative (but still usable) settings.
If Google will update the auto brightness calibration everyone will start seeing much better battery life.
Sent from my Nexus 4 using Tapatalk
riprowan said:
+1 for Lux. I had the battery-guzzling HTC Amaze ("you'll be AMAZED how fast your phone dies!" ). Lux would almost double my battery life when I programmed it with ultra-conservative (but still usable) settings.
If Google will update the auto brightness calibration everyone will start seeing much better battery life.
Sent from my Nexus 4 using Tapatalk
Click to expand...
Click to collapse
Which Lux app do i need from the Play Store? There are many of them...
CitizenX said:
Which Lux app do i need from the Play Store? There are many of them...
Click to expand...
Click to collapse
I use this one:
https://play.google.com/store/apps/details?id=com.vito.lux
The trick is in setting up the profiles by hand, the automatic profile settings can be wonky.
Take some light measurements in dimmes light and establish the lowest level you can accept the screen. On an N5 this is probably all the way min. (At first you may find that it's pretty dim but Realize that you'll get used to this and later wonder why you liked the screen so bright.)
Then go into bright light and find the min level that you can accept. This might be all the way bright (on my Amaze, all the way bright was unnecessarily bright EVEN IN SUNLIGHT).
Then take a reading in a normal room and find the min acceptable brightness. This may still be all the way min.
You may want to sample a point or two in other light levels, usually 3-5 samples is enough if you suss out the power curve correctly.
Everyone loves iPhone battery life... ever notice how conservative an iPhone's auto brightness setting is? I'll go out on a limb and guess that, if the N5 is as aggressively bright in auto mode as everyone says (don't have mine yet), there's the possibility of getting an entire extra hour of SOT just by switching instead to very conservative auto-brightness settings.
Also if the min brightness is still pretty darn bright, there's a really good chance an update can knock that brightness down and stretch the battery even further.

[Q] Brightness changes (even though auto-brightness is off)

Hi all
I am having a strange issue with my Nexus 5, so I was wondering if anyone else has experienced this:
Auto-brightness is off, brightness is set to maximum. Every now and then, as I am using the phone, the brightness would change. It would go slightly darker, and then sometimes after some time (minutes) slightly brighter again (back to maximum). When this happens, the actual brightness settings slider does not change, it's always saying 100%. I've tried to notice some pattern in the occurrences of this issue, but so far cannot identify any steps to reproduce it. It is easily spotted when the screen has a big area of a solid colour, e.g. on a web-page's white space. So most often I see it while scrolling a news website. Note that during these brightness changes, my environment's lightning does not change (auto-brightness is off anyway, so this should not matter).
I don't even know if this could be down to a software or hardware issue.
So, anyone had similar problems?
Thanks,
Nik
It's throttling (overheating)
Found a related thread
Thanks supersain08 for your answer. Now using this term, I found this thread:
http://forum.xda-developers.com/showthread.php?t=2516915
sovata said:
Thanks supersain08 for your answer. Now using this term, I found this thread:
http://forum.xda-developers.com/showthread.php?t=2516915
Click to expand...
Click to collapse
How can you use the brightness at maximum on this phone? This phone has one of the brightest displays I've ever seen. At 30% or so it's brighter than most phones on full.
Synyster06Gates said:
How can you use the brightness at maximum on this phone? This phone has one of the brightest displays I've ever seen. At 30% or so it's brighter than most phones on full.
Click to expand...
Click to collapse
Well I think that's beside the point, but let's say it's a personal preference.
And also it is possible that one would like to have a 100% brightness in light/sunny conditions, so then this issue could become relevant for anyone.
Last time I used 100% brightness on a phone screen was on the first days of my gnex.
Displays are in indoor situation much too bright on 100%, brigther doesn't look better all the time. I am going with Auto-Brightness (to have it at 100% in outdoor situations) but it is still to bright in low light situations. I have to wait for a customrom to adjust this like I did with the gnex.
Can not understand how people can use it at 100% all the time.
Why do you feel it's necessary to argue whether 100% brightness is useful or not?
That's not the point of the original question.
supersain08 said:
It's throttling (overheating)
Click to expand...
Click to collapse
I've been having the same issue; glad to know it isn't a defect, and that it's supposed to do that. Thanks for the information

Adaptive Brightness

I think I've gotten too used to this feature on my old Note 4 with CyanogenMod, because I really miss it on my V20.
I just got the phone today, and so far, I really enjoy using it. But I'm having trouble with the lack of adaptive brightness. I like to have my phone screen dark (dark themes, low brightness, etc), battery saving or not. With adaptive brightness, I could set the brightness slider pretty low, and still have automatic adjustments; the screen would just be darker in brighter light than it would be on a higher setting.
It looks like LG got rid of this and put the old auto brightness back. I know most people prefer this, but I do not. The screen is just too bright for me. Is there any way to get adaptive brightness on here, preferably without root?
H918 (TMO)
Check out this thread for some ideas.
http://forum.xda-developers.com/v20/help/auto-brightness-t3490880
pbelcomp said:
Check out this thread for some ideas.
http://forum.xda-developers.com/v20/help/auto-brightness-t3490880
Click to expand...
Click to collapse
It looks like Lux is the only option. I've used it before and never really enjoyed it. I installed it anyway but brightness is really jumpy. I guess I have to hope T-Mobile adds it back in.
Zacharee1 said:
It looks like Lux is the only option. I've used it before and never really enjoyed it. I installed it anyway but brightness is really jumpy. I guess I have to hope T-Mobile adds it back in.
Click to expand...
Click to collapse
You need to adjust the settings. You can tell the app how quickly/slowly to ramp up/down the brightness. How much of a change in brightness is required before the change is actually made (so the screen isn't jumping around by 1% every time you move it in your hand). You can set brightness levels for certain ambient light levels, all to your choosing. It takes a little bit of time to dial it in, but it's far better than the garbage auto-brightness LG uses. I too miss the built-in adaptive brightness.

Categories

Resources