Attend XDA's Second Annual Developer Conference, XDA:DevCon 2014!
5,730,807 Members 42,659 Now Online
XDA Developers Android and Mobile Development Forum

CONSTANT varying screen brightness

Tip us?
Member - OP
Thanks Meter 3
Posts: 48
Join Date: Mar 2009
Default CONSTANT varying screen brightness

Does anybody else's 2014 constantly vary the screen brightness? It's subtle and seems to happen constantly at 1 Hz.

Whenever I'm looking at it and the screen is mostly white, you can see this slight pulse. It's driving me mad!

And no, "auto" is not on.

How can I stop this? It's literally the only thing that is annoying the crap out of me on this device.

Maybe my eyes are too sensitive :-/
Senior Member
Thanks Meter 250
Posts: 1,684
Join Date: Jan 2009
not too many people seem to be bothered by it, so we're in the minority. lots of these newer monitors are doing this and it annoys the hell out of me. as far as i can find, there's nothing we can do.
Senior Member
Thanks Meter 31
Posts: 145
Join Date: Jun 2012
Turn off auto color settings not just auto brightness.
The Following User Says Thank You to elzeus For This Useful Post: [ Click to Expand ]
Senior Member
Thanks Meter 48
Posts: 157
Join Date: Aug 2011
Originally Posted by elzeus View Post
Turn off auto color settings not just auto brightness.
This. Fixed the flickering for me.
(Last edited by botoid; 15th June 2014 at 11:11 AM.)
Junior Member
Thanks Meter 0
Posts: 3
Join Date: Apr 2014
Maybe you are referring to

In which case turning off auto color and every other auto settings would not solve the slight screen adjustments you are seeing.

I experience the 1hz very slight flickering when typing an email from k9 mail. I believe the blinking cursor is making the device adjust the brightness at the same frequency.
Junior Member
Thanks Meter 0
Posts: 1
Join Date: Jul 2014
Exclamation I found the problem of varying screen brightness

Hi All,

This is actually my first post as I've been wandering around xda for a while as a guest and enjoying the hi tech professionalism here. When I saw this thread I HAD to join....

I have a new 10.1 2014 edition LTE T-Mobile version that T-Mobile unlocked for me this week and I am using it on AT&T LTE and it works great!! I have not rooted this device, it is completely stock.

I installed a few different keyboards to try out which were Swiftkey, Google Keyboard, TouchPal X, Swype, and the stock Samsung default keyboard.
I noticed last night in my living room while typing an email that the entire display was faintly pulsing bright/dim in perfect timing with the blinking cursor. After much trial I found out it only happens when using Google Keyboard or TouchPal X. If I use Swiftkey, Samsung, or Swype keyboards the screen does not pulse with the blinking cursor. So needless to say I uninstalled Google Keyboard and TouchPal X. They must be extremely heavy apps in terms of RAM usage maybe?? This is where you guys can take over....

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes


Blast Those Flags with Knock the Flags

Lately, we have seen a rather drastic shift in the world of mobile device gaming. The infamous Angry … more

Hide Numbers on Your SMS and Call Logs with Reflection

How many times have you given your device to someone else in order to show them a … more

Implement Split View in Your LG G2 KitKat Rom with Automated Installer

Some of you may have remembered a story on the Portal a few weeks back … more

Cast Your Device Screen the Way it Was Meant to be with Second Screen

Not too long ago here on the XDA Portal, we covered how Google had made … more