Ubuntu
acpi package

brightness function

Asked by venu9963637813

my laptop brightness function keys not working . i am using lenovo z570 . i am unable to controle brightness . my battery down very fast .

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Ubuntu acpi Edit question
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actionparsnip (andrew-woodhead666) said : 		#1

Add the boot option:

acpi_osi=Linux

May help

Revision history for this message
actionparsnip (andrew-woodhead666) said : 		#2

Could also try adding:

setpci -s 00:02.0 F4.B=00

to /etc/rc.local ABOVE the exit 0 line, may also help.

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