cancel
Showing results for 
Search instead for 
Did you mean: 
Reply
79dan
Punch Card
Posts: 16
Registered: ‎01-29-2011
Location: Texas
Views: 879
Message 11 of 17

Re: X100e screen brightness increasing by itself!

Ok, I just determined that it's not the On Screen Display that it's causing this issue. I set the brightness to 13, ended the On Screen Display processes (2 of them) and after about 5 minutes, the brightness increased by itself by one step anyway, I just couldn't see the OSD pop up.

 

Next, I'll try to determine if this has something to do with the timers in Power Manager, even though they are not active.

aholland73
Punch Card
Posts: 27
Registered: ‎09-29-2010
Location: UK
Views: 865
Message 12 of 17

Re: X100e screen brightness increasing by itself!

Can you tell me what other software you've installed before this problem started to occur?  For me it happened shortly after I installed a beta of IE9...

79dan
Punch Card
Posts: 16
Registered: ‎01-29-2011
Location: Texas
Views: 856
Message 13 of 17

Re: X100e screen brightness increasing by itself!

I believe the day before I installed the following:

 

Lenovo System Interface Driver 1.05

On Screen Display 6.20.00

Thinkpad FullScreen Magnifier 2.20

Thinkpad Power Manager 3.31

 

Also, I enabled Dynamic Brightness Control under Global Power Settings, to decrease screen brightness during Shut Down / Start Up, Logoff, etc. However, I disabled that option hours later.

 

I already tried disabling On Screen Display, uninstalling Power Manager, reversing to an old version of the PM Driver, re-enabling Dynamic Brightness Control, and yet the problem continues... I'm trying to learn to live with it.

 

 

 

 

dakh
What's DOS?
Posts: 1
Registered: ‎02-19-2011
Location: Seattle
Views: 816
Message 14 of 17

Re: X100e screen brightness increasing by itself!

The culprit is a process named "atibtmon.exe".  At least on my x100e that had this issue killing it gets rid of the wandering brightness. 

KGr_ss
Punch Card
Posts: 75
Registered: ‎03-10-2011
Location: United States
Views: 762
Message 15 of 17

Re: X100e screen brightness increasing by itself!

Your mention of atibtmon.exe tipped me to finding the solution to this issue.

 

It's actually Vari-Bright option in the Catalyst Control Center that is causing the screen dimming / raising.  The option is in the PowerPlay section of the Power section in the CCC.

 

Or at least, turning off the Vari-Bright option solved the issue.

 

CCC image

 

This is also an issue for the X120e.

-----------------------------------------------------------------
For a compilation of most X120e issues:
Compilation of Lenovo X120e issues and solutions
Stadsport
Fanfold Paper
Posts: 11
Registered: ‎08-07-2008
Location: United States
Views: 299
Message 16 of 17

Re: X100e screen brightness increasing by itself!

I know I'm necrobumping this but I just have to say you, sir, are a gentleman and a scholar. I was going NUTS trying to fix this. Thank you!

mazgirl18A
Paper Tape
Posts: 1
Registered: ‎01-30-2013
Location: mexico
Views: 259
Message 17 of 17

Re: X100e screen brightness increasing by itself!

MY X120E DIMS SCREEN ON IT'S OWN

without any warning my laptop does the opposite.   it dims and fn/brightness button do not work at all.   BUT, then without any warning it goes back to a normal screen and the buttons then work.

 

 

i have tried the battery levels but nothing works.

Check out current deals!


Shop current deals

Top Kudoed Authors