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Fedora 19 Backlight issue on Lenovo Y480

asked 2013-07-09 10:08:54 -0500

alejo gravatar image

updated 2013-07-09 22:52:40 -0500

FranciscoD_ gravatar image

Hello People

I had installed Fedora 19 on my Lenovo Y480. Using graphical installation the backlight wasn’t work, after installation the backlight doesn’t work only during the start up and the login prompt, after that when KDE launched the backlight works fine. I want to ask you how make the backlight works when system is starting up?

Thanks for your help

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Is the back light dim, or is it completely absent?

FranciscoD_ gravatar imageFranciscoD_ ( 2013-07-09 22:54:08 -0500 )edit

The backlight dim, when I used a lamp or a lantern the information can be watched

alejo gravatar imagealejo ( 2013-07-10 17:04:00 -0500 )edit

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answered 2013-08-15 01:16:21 -0500

froooyo gravatar image

adjust brightness for Discrete NVDIA

echo 50 > /sys/class/backlight/acpi_video1/brightness

adjust brightness for Integrated

echo 55 > /sys/class/backlight/acpi_video0/brightness

you can add this to rc.local

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Asked: 2013-07-09 10:08:54 -0500

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Last updated: Aug 15 '13