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Screen dims automatically when unplugged in my Dell laptop

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Screen dims automatically when unplugged in my Dell laptop
« on: April 10, 2022, 07:29:40 AM »
 

Diego Garcia

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Hello! I have a Dell Inspiron 15 3552, am using the latest version of Linux Lite (Linux Lite 5.8), and when I unplug the power cable, the screen automatically dims. When there's activity on the screen (mouse moving), it seems to get a lil brighter but it is still dim, and I can't change the brightness through the fn keys when unplugged either, only when plugged.

I have googled and found many other people with this issue in other distros but for this one.

I tried the power settings, tried to disable everything I could (make it behave the same plugged/unplugged) but nothing changes this there.
I tried the power management in bios, no configuration that helps me there either.

I suspect that maybe there's something I could do in the terminal that might solve this issue, but I simply couldn't find anything that has worked for this OS.

In case it's helpful to clarify this, I'm a newbie when it comes to linux distros.
 

 

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