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39 Posts

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January 6th, 2021 00:00

Inspiron 7400, cannot disable adaptive brightness in BIOS?

This laptop doesn´t have an option to disable adaptative brightness in UEFI bios, it´s a very annoying problem. I have another Dell 5502 with 11th gen and i have this option in bios, so please add it to the inspiron 7400.

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39 Posts

January 9th, 2021 04:00

The problem is that the EcoPower option that solves this problem is not present in the BIOS of this computer.

Please Dell, update the BIOS with the EcoPower option.

2 Posts

January 9th, 2021 04:00

Yes please fix this - it's super annoying to have the screen constantly doing adaptive brightness when you don't want it to change. 

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6.2K Posts

January 9th, 2021 05:00

Welcome to the Dell Community @jlmcr87  and @ryban3z 

I do not have this option so I cannot test it at this time.

But are you able to do it from Windows???

https://www.tenforums.com/tutorials/70157-enable-disable-adaptive-brightness-windows-10-a.html

Best regards,

U2

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39 Posts

January 9th, 2021 06:00

None of this options are working. So no option in BIOS, no option in Windows.

The only thing i can do is disable power savings in the Intel control center, but this only solves the problem when you are on AC plug.

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39 Posts

January 9th, 2021 06:00

I don´t have any private message from you.

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27.8K Posts

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490 Points

January 9th, 2021 06:00

Hi,

 

I have replied to you via a private message.

 

-Gautam.

 

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39 Posts

January 9th, 2021 07:00

Dell Support is not able to give a solution. Incredible. They only copy paste a solution that doesn´t work.

Listen: You have to update BIOS with the EcoPower option. It´s the only solution. It´s a ridiculous and annoying bug. You can´t work with the brightness changing every window you open. 

2 Posts

January 10th, 2021 01:00

Nope doesn't work for me either!

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39 Posts

January 11th, 2021 01:00

Still no solution...we need a BIOS update with the EcoPower option to solve the brightness problem.

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27.8K Posts

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490 Points

January 11th, 2021 01:00

I am reviewing the case, i will check and DM you in sometime. 

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39 Posts

January 11th, 2021 23:00

Bios update 1.3.3 doesn´t solve the problem. I know it´s too soon, but please, in the next BIOS add the EcoPower option. We need to control the brightness changes under battery. Thanks

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7 Posts

January 12th, 2021 07:00

It was the same problem with 3501 model on 11th Gen. I contacted support and no luck. Based on what I read with previous models that had this problem, the bios update took a while to arrive. To me I think this is not acceptable, I just checked the latest bios update for that model to see whether I was heard....nope no option in bios added....I returned the laptop. Everything was fine on AC but on battery i was having a party on the screen.

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39 Posts

January 31st, 2021 00:00

Near a month and still no solution...we need a bios update to add the Ecopower option.

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27.8K Posts

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490 Points

February 3rd, 2021 04:00

Hi, we are still waiting for an update from our product engineering team. As soon as we get an update, we will keep you posted. 

February 17th, 2021 16:00

Agree with you 100%. I am experiencing the same issues with what should have been a premium laptop purchase. Adaptive brightness is killing my user experience!

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