Screen brightness fades in and out

Osiris_C3 · 02/23/2010, 02:12 PM

I have an issue I have noticed since I got my pre, but never really thought about asking anyone until now. My brightness is set at 30% yet when I unlock it appeares to be at 100%. I'll chek my settings but its still at 30% I'll set it to 100% and there are no noticable differences in brightness.Usually about a minute later it will dim back to 30%. Even though I'm still using it so its not just sitting idle when it corrects itself. does anyone else have this problem?

mjkjr · 02/23/2010, 02:17 PM

Quote:

Originally Posted by Osiris_C3

I have an issue I have noticed since I got my pre, but never really thought about asking anyone until now. My brightness is set at 30% yet when I unlock it appeares to be at 100%. I'll chek my settings but its still at 30% I'll set it to 100% and there are no noticable differences in brightness.Usually about a minute later it will dim back to 30%. Even though I'm still using it so its not just sitting idle when it corrects itself. does anyone else have this problem?

I don't think it's a problem, sounds like the "Ambient Light Sensor"

datboi208 · 02/23/2010, 03:11 PM

Inside the OS, there is a setting for Dark Mode and Bright Mode brightness settings. As far as I can tell, there is a certain difference from what you set the brightness to, to what the actual numbers the system uses as Dark and Bright mode numbers.

If you have Preware installed, there is a app called 'Quick System Tasks - BETA' that will allow you to change the display mode settings which handles these two brightness modes. I personally used to see an occasional jump and dip in brightness for no reason, so I set the program to a 1% difference between Dark and Bright mode so I could no longer see the changes.

malpha · 02/23/2010, 03:14 PM

Quote:

Originally Posted by Osiris_C3

I have an issue I have noticed since I got my pre, but never really thought about asking anyone until now. My brightness is set at 30% yet when I unlock it appeares to be at 100%. I'll chek my settings but its still at 30% I'll set it to 100% and there are no noticable differences in brightness.Usually about a minute later it will dim back to 30%. Even though I'm still using it so its not just sitting idle when it corrects itself. does anyone else have this problem?

Mine does this, too. If I lock it again, it'll pop back up at the right brightness setting.

lexflo · 02/23/2010, 04:36 PM

same here.... A quick press of the power button corrects it... But why does this happen?

Osiris_C3 · 02/23/2010, 04:40 PM

Quote:

Originally Posted by datboi208

Inside the OS, there is a setting for Dark Mode and Bright Mode brightness settings. As far as I can tell, there is a certain difference from what you set the brightness to, to what the actual numbers the system uses as Dark and Bright mode numbers.

If you have Preware installed, there is a app called 'Quick System Tasks - BETA' that will allow you to change the display mode settings which handles these two brightness modes. I personally used to see an occasional jump and dip in brightness for no reason, so I set the program to a 1% difference between Dark and Bright mode so I could no longer see the changes.

This seems to have done the trick so far. I have only tried it for about an hour. I'll see how it does as the week goes on but so far so go.

dbdoinit · 02/23/2010, 04:49 PM

Quote:

Originally Posted by lexflo

same here.... A quick press of the power button corrects it... But why does this happen?

The phone is designed to try to save some battery life when the viewing conditions don't warrant a very bright screen.
This is supposed to be a benefit, not a downfall.

lopezpm · 02/23/2010, 04:55 PM

Quote:

Originally Posted by dbd

The phone is designed to try to save some battery life when the viewing conditions don't warrant a very bright screen.
This is supposed to be a benefit, not a downfall.

But it is a downfall (for me). In the past, I've had phones that I could turn off the ambient option. I would love to turn it off on this one.

ImmaSlave4U · 02/23/2010, 05:07 PM

I've always thought the ambient light sensor on the Pre worked poorly.

deesugar · 02/23/2010, 06:07 PM

Quote:

Originally Posted by ImmaSlave4U

I've always thought the ambient light sensor on the Pre worked poorly.

I think it's a software bug and not a sensor problem. Maybe 1.4 will fix it, then again it's not that big of a deal, just a small annoyance.

tbaker55 · 02/23/2010, 08:53 PM

I remember my BB Tour back lighting changed even when I turned the sensor off. I don't notice it as much with my Pre though.

art_sjc · 10/22/2010, 07:08 PM

Quote:

Originally Posted by deesugar

I think it's a software bug and not a sensor problem. Maybe 1.4 will fix it, then again it's not that big of a deal, just a small annoyance.

Looks like 1.4.5 still has this issue. Annoying to have to use the power button workaround to deal with this.

Mr.quenton · 10/24/2010, 03:42 PM

Quote:

Originally Posted by art_sjc

Looks like 1.4.5 still has this issue. Annoying to have to use the power button workaround to deal with this.

I'm still dealing with it as well, ah well.

Cantaffordit · 10/24/2010, 04:05 PM

Quote:

Originally Posted by lexflo

same here.... A quick press of the power button corrects it... But why does this happen?

it will dim when not touched to save battery but still be viewable before going to sleep. It's power saving and ambient light sensor.

clintwinstead · 10/24/2010, 04:09 PM

I have the exact same problem. It really gets on my nerves. Is there a way to disable the ambient sensor?

RUSH · 10/24/2010, 04:14 PM

I'm experiencing this right now.. It just went from high to low. My guess is that it goes down from high to low depending on the battery level.

verwon · 10/24/2010, 05:09 PM

The ambient light sensor is supposed to do this. However it is buggy, like when I'm sitting in the dark and it dims.

JwhiteH · 10/24/2010, 10:13 PM

Quote:

Originally Posted by verwon

The ambient light sensor is supposed to do this. However it is buggy, like when I'm sitting in the dark and it dims.

that is not a 'bug.' that is what it is designed to do. When it is ambient light is low, the screen dims. It is a feature to protect your eyes.

Bright light with dark surroundings will damage the eye.

it is the opposite when ambient light is bright. The screen brightens to make it easier to view.

coming from a BB, I love it. I haven't noticed with the Pre yet, but the BB's can be viewed in direct sunlight with little issues.

doxod · 03/07/2011, 11:18 AM

I too had this problem with my pre+, and also have it with my replacement pre+. I think this problem might possibly be widespread. This brightness issue happens randomly with me as I awake my screen, and whether or not it is dark or light outside. I noticed it more often when I leave the phone alone for awhile (10-30 minutes) and then I awake the screen.

I have the brightness turned down all the way within the Screen & Lock options. And with that said, my screen brightness randomly goes to about 100% as my screen is awoken. A quick "on and off again" with the screen fixes this brightness issue, and the screen goes back to my chosen brightness... until it happens again later.

The worst is when you are in a dark room and it happens (lets say a movie theater), the screen becomes almost blinding and I have to look away.

This is definitely a bug in my eyes and it is still in 1.4.5. Also may I add that this doesn't do the battery good either.

02/23/2010, 02:12 PM	#1 (permalink)
Osiris_C3 Member Join Date: Sep 2009 Posts: 174 Likes Received: 1 Thanks: 60 Thanked 39 Times in 32 Posts	Screen brightness fades in and out I have an issue I have noticed since I got my pre, but never really thought about asking anyone until now. My brightness is set at 30% yet when I unlock it appeares to be at 100%. I'll chek my settings but its still at 30% I'll set it to 100% and there are no noticable differences in brightness.Usually about a minute later it will dim back to 30%. Even though I'm still using it so its not just sitting idle when it corrects itself. does anyone else have this problem?
	Liked by

02/23/2010, 03:11 PM	#3 (permalink)
datboi208 Member Join Date: Jan 2010 Location: Odenton, MD Posts: 57 Likes Received: 2 Thanks: 14 Thanked 10 Times in 7 Posts	Inside the OS, there is a setting for Dark Mode and Bright Mode brightness settings. As far as I can tell, there is a certain difference from what you set the brightness to, to what the actual numbers the system uses as Dark and Bright mode numbers. If you have Preware installed, there is a app called 'Quick System Tasks - BETA' that will allow you to change the display mode settings which handles these two brightness modes. I personally used to see an occasional jump and dip in brightness for no reason, so I set the program to a 1% difference between Dark and Bright mode so I could no longer see the changes.
	Liked by Thanked by art_sjc, Osiris_C3

02/23/2010, 04:36 PM	#5 (permalink)
lexflo Member Join Date: Jun 2009 Location: North Bergen NJ Posts: 57 Likes Received: 0 Thanks: 10 Thanked 5 Times in 5 Posts	same here.... A quick press of the power button corrects it... But why does this happen?
	Liked by

02/23/2010, 05:07 PM	#9 (permalink)
ImmaSlave4U Member Join Date: Feb 2009 Location: Los Angeles, CA/Eugene, OR Posts: 819 Likes Received: 0 Thanks: 18 Thanked 78 Times in 49 Posts	I've always thought the ambient light sensor on the Pre worked poorly.
	Liked by

02/23/2010, 08:53 PM	#11 (permalink)
tbaker55 Member Join Date: Aug 2009 Posts: 137 Likes Received: 0 Thanks: 10 Thanked 6 Times in 6 Posts	I remember my BB Tour back lighting changed even when I turned the sensor off. I don't notice it as much with my Pre though.
	Liked by

10/24/2010, 04:09 PM	#15 (permalink)
clintwinstead Member Join Date: Nov 2009 Location: Kinston, NC Posts: 309 Likes Received: 2 Thanks: 62 Thanked 45 Times in 34 Posts	I have the exact same problem. It really gets on my nerves. Is there a way to disable the ambient sensor?
	Liked by

10/24/2010, 04:14 PM	#16 (permalink)
RUSH Banned Join Date: Feb 2010 Location: Oceanside, California. Posts: 3,265 Likes Received: 1 Thanks: 433 Thanked 967 Times in 782 Posts	I'm experiencing this right now.. It just went from high to low. My guess is that it goes down from high to low depending on the battery level.
	Liked by

10/24/2010, 05:09 PM	#17 (permalink)
verwon Member Join Date: Jun 2010 Location: Earth....maybe! Posts: 3,369 Likes Received: 13 Thanks: 6,075 Thanked 2,033 Times in 1,606 Posts	The ambient light sensor is supposed to do this. However it is buggy, like when I'm sitting in the dark and it dims. __________________ Sent from my favorite gadget!
	Liked by

03/07/2011, 11:18 AM	#19 (permalink)
doxod Member Join Date: Apr 2010 Posts: 13 Likes Received: 0 Thanks: 1 Thanked 1 Time in 1 Post	I too had this problem with my pre+, and also have it with my replacement pre+. I think this problem might possibly be widespread. This brightness issue happens randomly with me as I awake my screen, and whether or not it is dark or light outside. I noticed it more often when I leave the phone alone for awhile (10-30 minutes) and then I awake the screen. I have the brightness turned down all the way within the Screen & Lock options. And with that said, my screen brightness randomly goes to about 100% as my screen is awoken. A quick "on and off again" with the screen fixes this brightness issue, and the screen goes back to my chosen brightness... until it happens again later. The worst is when you are in a dark room and it happens (lets say a movie theater), the screen becomes almost blinding and I have to look away. This is definitely a bug in my eyes and it is still in 1.4.5. Also may I add that this doesn't do the battery good either.
	Liked by

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