Capacitive button led? - EVO 4G Q&A, Help & Troubleshooting

When are they supposed to be on? If not how do you turn them on?
My buttons don't seem to turn on anymore when the screen is turned on. It seems to turn on randomly with no real patterns? Could it be my rom? (DC 3.1?)
What is the default expected behavior? I'll RUU to stock and test if someone can describe the default/expected behavior.

I believe if the screen is in, they should be on. If they aren't, then it's probably just something in the ROM. Post in the devs thread that you're having issues. Also, might want to test it out by applying some other ROM rather than going back to stock and re-rooting.

Actually they typically are on when the screen is on but it also uses the ambient light sensor. If the phone detects there is a lot of light, then the capacitive buttons will either not turn on or turn off if they were on.

Mine go on with the screen while off the charger. On the charger they stay off ( when the screen comes on), unless I toggle them on by taking it off the charger then back on. Once on they stay on even on the charger.

Related

[Q] Bug in Auto-Brightness?

I hope someone can confirm if this is a bug or not!
Whenever I turn off my screen, and then on again it takes a second for the screen to auto-adjust the brightness up or down. (depending on the light-situation!)
Isn't the light sensor supposed to know what brightness to be at even when the screen is shut off? It's as if it first detects the light-situation when I turn on the screen. Could someone please try (in either a very dark or light room) try shut off screen, then back on and check if the brightness has stayed the same or if it first adjusts it when you've turned it on?
Why would it monitor the light when the display is off? Seems like a waste of power to me.
I doubt its a bug. More like a powersaving feature.
That's normal AFAIK.
The light sensor turns of when the screen goes off, to save a few milliamps I presume.
To my knowledge this is normal, its how mine operates as well.
Sent from my Desire HD using XDA App
It's like that on mine too. I think that all sensors are turned off when the screen is off to save battery.
[SOLVED] Bug in Auto-Brightness?
Alright, thanks for the replies. Just didn't notice it till now and it sort of bothered me.

View Charging Status with Phone Off.

Hello there.
New user, first post. I've searched if there was anything related but found nothing. If I missed something, moderators can merge or whatever.
Well, it seems you can see the Defy's current charging indicator with the phone turned off, *without* pressing the volume buttons.
Here's how:
1. Make sure the screen is clean (no crust, oil etc);
2. If you're using a screen cover, it might be best to remove it;
3. Charge your Defy with it switched off;
4. In a place with preferably sunlight, look at the screen from the side, at a 45 degree angle and adjust. If you look carefully, you can see the battery indicator!
The catch: Even when charging with the Defy switched off, the screen is partially on, albeit very dim indeed.
Maybe someone could take a screenshot?
Have fun.
Compass Linux.
isnt the charging status just shown on the screen anyway?
stewi21 said:
isnt the charging status just shown on the screen anyway?
Click to expand...
Click to collapse
When the Defy is off and charging, no. Press the volume buttons for the charging status to appear in all its glory.
Whether a feature or a defect, perhaps this is configurable somehow.
Examples:
1. Adjust (with the phone on) the screen dimness for when the phone is off and charging, so one could see from a distance how much is done;
2. Screen indicates when charging is complete (flashing for instance).
There *might* be a slight decrease in the charging time if the screen is completely turned off, but I don't think it would be noticeable.
Compass Linux.

Touch keys NEVER turn off (even when the phone is off)

My touch keys (soft keys) never turn off. Even when the phone is off. When the screen is on they work as they should, meaning that they do turn off completely after not touching the screen for a while, but as soon as the screen turns off, the buttons turn on, and not full brightness but dim. This happened when i started deleting bloatware, but i have already installed different roms and same problem happens. What can i do? Are there any drivers that i should check for the backlight of these buttons?? PLEASE HELP!!!!!
Do you have a text message everytime you see em light up? You might have BLN on... What kernel u running?
Sent From my Galaxy S II T-Mobile
Thats what i was hoping for, but my noticifications are clean. I even went back to stock ROM and its still the same. the kernel im running is 2.6.35.11
Post in general not here
Sent from my SGH-T989 using xda premium
Sorry about that. I already did, but since the developers are always hanging around here i thought i would get luckier.
asainz320 said:
Sorry about that. I already did, but since the developers are always hanging around here i thought i would get luckier.
Click to expand...
Click to collapse
Check your display settings. There are options for the soft button lights including "always on."
Even when i put the setting for always off, they would stay off when im working on the phone, but i soon as i turn of the screen the touch keys come on and stay on in a very low dim.
is there any piece of code i can flash to force the touch keys to turn off?
This is for development only.not Q&A or any general.mod please move
From a glaxay better than yours.
Has anyone figured this out? Same thing is happening to me and it's annoying.
It's probably your imagination. The brightness from the screen cancels out light (the light that actually is reflecting off the buttons, not coming from the buttons) coming from the buttons when they are "off" as you use the screen and instantly or slowly come into vision as you turn the screen off. When you turn the screen off, there is no light to cancel out the light (sun's rays) coming from the buttons and you can see them. To test, go into a room with no light at all and turn the phone off. If the dim light from buttons are no longer visible, then it was just your imagination.
You dug this out the grave
Me? I just tought I'd put my thoughts and observations out there and help the guy. I didn't dig up any thread if you are talking to me.
aranurea said:
It's probably your imagination. The brightness from the screen cancels out light (the light that actually is reflecting off the buttons, not coming from the buttons) coming from the buttons when they are "off" as you use the screen and instantly or slowly come into vision as you turn the screen off. When you turn the screen off, there is no light to cancel out the light (sun's rays) coming from the buttons and you can see them. To test, go into a room with no light at all and turn the phone off. If the dim light from buttons are no longer visible, then it was just your imagination.
Click to expand...
Click to collapse
Thats how i knew the lights were staying on, cus when i went to sleep i noticed the lights were still on. This is not visible if there's other light sources around you because the buttons light up very dim. You only notice in a completely dark room.
Did you change your settings? If that didnt work, try taking it to a tmo store.
Sent from my SGH-T989 using XDA
asainz320 said:
Thats how i knew the lights were staying on, cus when i went to sleep i noticed the lights were still on. This is not visible if there's other light sources around you because the buttons light up very dim. You only notice in a completely dark room.
Click to expand...
Click to collapse
It's supposed to be like that.
asainz320 said:
My touch keys (soft keys) never turn off. Even when the phone is off. When the screen is on they work as they should, meaning that they do turn off completely after not touching the screen for a while, but as soon as the screen turns off, the buttons turn on, and not full brightness but dim. This happened when i started deleting bloatware, but i have already installed different roms and same problem happens. What can i do? Are there any drivers that i should check for the backlight of these buttons?? PLEASE HELP!!!!!
Click to expand...
Click to collapse
Warranty swap
Sent from my SGH-T989 using xda premium

Soft Touch Button Lights

So I can't seem to figure out why the Soft Touch Button are on, or mostly not on on the One X.
In a dark room they are not usually on, run some app or open something on the phone and they seem to activate.
Anyone else getting this??
They should activate/deactivate depending on the amount of surrounding light.
Tested it myself, with a flashlight on the phone the lights went of. When I removed the flashlight and back in the dark, the lights turned on.
Yes, I got the same result as Foggy79. I just want to know if I can turn if off manually?
Probably not (maybe with a custom ROM, but I doubt that)
I wanna know how to turn them off. When watching a video in the dark.... they stay on, when they should turn off when video is being played full screen.
n19htmare said:
I wanna know how to turn them off. When watching a video in the dark.... they stay on, when they should turn off when video is being played full screen.
Click to expand...
Click to collapse
Use this Rom :
http://forum.xda-developers.com/showthread.php?t=1625816
With PKMN Tweaks integrated in this rom, you can control soft key led back light :
* Always on
* Always off
* Turn on when the dim light, turn off when strong light
ancola66 said:
Use this Rom :
http://forum.xda-developers.com/showthread.php?t=1625816
With PKMN Tweaks integrated in this rom, you can control soft key led back light :
* Always on
* Always off
* Turn on when the dim light, turn off when strong light
Click to expand...
Click to collapse
would rather not go flashing roms to get this.
And how would the tweak help? either it's always on, always off or the last option which would keep the lights on under dim conditions.
What they need to do is add a timeout. like on the Galaxy series phones. 2 seconds or 7 seconds. then it shuts off, when you touch the screen it turns on again.
It's just bad designing and/or programming.
Foggy79 said:
Tested it myself, with a flashlight on the phone the lights went of. When I removed the flashlight and back in the dark, the lights turned on.
Click to expand...
Click to collapse
That'sa great idea, which I can't believe I didn't think of. I have been having the opposite problem: the soft key lights always stay on. However, when I held up the phone to a bright light, they turned off. So, they are working.
Still, it takes a really bright light to achieve this; I wish I could fine tune the behavior. I tried an app that stated it would control the keys but it did not work (and my phone is not rooted).
I also see in ancola66's post that the custom ROM allows automatic dimming only in "strong light," so apparently the behavior I am seeing is normal. I wish it would take less strong light to activate dimming/off as my lights never seem to go off, as I stated.
Thanks for these informative posts.
Reading in bed with Aldiko
It mostly annoys me when I'm reading in bed with Aldiko. Aldiko is a great reading app that lets you adjust the lights the phone emits to the lowest possible, so I can read in the dark without disturbing my wife.
However, on this phone I have the keys glaring in my eyes, way brighter than the letters of my book.
I wish I could switch them off somehow.
I thought the soft lights will only turn on when phone is in dark place? Correct me if I'm wrong.
kim9988 said:
I thought the soft lights will only turn on when phone is in dark place? Correct me if I'm wrong.
Click to expand...
Click to collapse
Exactly.. That sucks when lying in bed reading next to your beloved.. It should only light when touching the screen like the s3..I don't need those lights when I sit and read a book or something
Skickat från min HTC One X via Tapatalk 2
There are ways to disable them. Mostly(maybe a must) if you are ROOTED.
Apps that ppl said that were able to shut them off were screenfilter or how its called. Search through the forums here.
Or you can edit the framework-res file to disable them on sense roms. If Interested I will search it from here somewhere.
Or for CM check my signature (there are 2 lines, not the one about the UV...)
They annoy me too. I recently began watching some videos in bed (streaming from desktop) because I temporarily gave away my laptop. They are very bright in the dark, I wish there was an option to turn them off permanently (yes, I know it's possible with custom ROMs, but I'm still not ready to root yet).
Also, the display is still too bright for my taste - lowest brightness should be lower. Although it's pretty good compared to other screens. In my opinion, the lowest brightness is also very important, just as max. brightness.

How to keep device awake while charging

1. Go into About found under Settings, click "Build number" 5 times to enable developer mode.
2. Now swipe back into Settings main menu and select Developer Options.
3. Enable Stay awake when charging.
Beware, this doesn't appear to be reversible. Turned it off, screen stays on when charging. Reset the watch, screen stays on. Makes charging much slower.
EDIT: Actually appears to be part of an update, will always stay dimly lit now.
Casey_S said:
Beware, this doesn't appear to be reversible. Turned it off, screen stays on when charging. Reset the watch, screen stays on. Makes charging much slower.
EDIT: Actually appears to be part of an update, will always stay dimly lit now.
Click to expand...
Click to collapse
Just found that out myself as well. It's tough when a device is so limited. Not much info out there yet
Wait, its supposed to go off when charging? The damn thing stayed on all night last night for me (first night with it). I thought it was a feature. I took it off several times and it stayed on, even when I pressed the power button. I'd really prefer it not stay on.
I enabled dev options and its not set to stay on. Weird. I'll check again tonight. When i first opened it and did the initial charge it did turn off but I thought maybe since the ambient light sensor saw it was night time it stayed on but goes off during the day. Weird.
Casey_S said:
Beware, this doesn't appear to be reversible. Turned it off, screen stays on when charging. Reset the watch, screen stays on. Makes charging much slower.
EDIT: Actually appears to be part of an update, will always stay dimly lit now.
Click to expand...
Click to collapse
I've noticed there's different modes of dim too. Sometimes it's very dim, and at other times it's somewhat dim. Really strange. I turned the watch off and put it on the charger. It automatically turned off, but stayed in a very dim mode compared to how it was when I just put it on the charger without turning it on. I am slightly worried about burn in rather than charging slower. Since I'll be charging overnight.
I wish there was a way to turn it off or at least turn down the brightness, I like my room completely dark.

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