Problem with new lcd screen brightness control

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salunkhevicky01

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Jan 5, 2018
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i bought a new screen for my dell inspiron 3542 since then i am not able to control brightness when my laptop is running on battery, but as soon as i plug in the charger the control works perfectly.

i also tried to replace the screen with the old screen over there brightness control works fine.
my old screen has got some dead pixels so can't continue to work over it.

i have updated all the drivers and tried all the solutions given on this forum and other but still issue is there.
 
Solution
webworkings
Try this...

1. Go into "Control Panel" and then "Power Options".

2. Click the "Change plan settings" link next to which ever plan you are currently using and then click "Change advance power settings".

3. In this new window click "Display" to open up the listings under it.

4. Now locate and click each of the following..."Display brightness", "Dimmed display brightness" and "Enable adaptive brightness".

5. Change each of these to the settings you wish (in this case I would turn off adaptive), then click the "Apply" button and finally the "OK" button.

6. You should be good.
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salunkhevicky01

Prominent
Jan 5, 2018
2
0
510
MERGED QUESTION
Question from salunkhevicky01 : "Problem with new lcd screen brightness control"

i have bought new lcd screen as i have got some dead pixels on old one
but brightness control is not working while the laptop is running on battery but as soon as charger is plugged in the adjustment of brightness seems to work properly.

i have dell inspiron 3542

when the laptop is running on battery brightness is full and i am not able to reduce the brightness.

i have tried replacing the new lcd with old one in it the brightness control is working fine on both conditions.

plz help

i have checked power settings.

connected and disconnected lcd screen various times.

tried different versions of graphic driver.

 
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webworkings

webworkings

Titan
Apr 6, 2016
25,136
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113,340
Try this...

1. Go into "Control Panel" and then "Power Options".

2. Click the "Change plan settings" link next to which ever plan you are currently using and then click "Change advance power settings".

3. In this new window click "Display" to open up the listings under it.

4. Now locate and click each of the following..."Display brightness", "Dimmed display brightness" and "Enable adaptive brightness".

5. Change each of these to the settings you wish (in this case I would turn off adaptive), then click the "Apply" button and finally the "OK" button.

6. You should be good.
 
Upvote 0 Downvote
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