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[SOLVED] E7440: no brightness control


girardpallet

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Hello,

my e7440 is working well from now few month, with uptodate ok until the last from Apple: 10.13.5.

but today , i need to change the brightness and.... it is not working anymore....

no slider to change under  Sytem preference"  "screen"

and also impossible with Fn F3 and Fn insert ...

to be honest , it was working few month ago, but didn't try from few update..

thank for your help .

 

Capture d’écran 2018-06-13 à 23.08.49.png

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thank for reply,

 

i upgrade from combo update, and run this script: 

 

#!/bin/bash

if [ $(id -u) != 0 ]; then
     echo "You need to run this script as root. Type sudo -s, enter password and run this script again."
exit
fi
sudo chmod -Rf 755 /L*/E*
sudo chown -Rf 0:0 /L*/E*
sudo chmod -Rf 755 /S*/L*/E*
sudo chown -Rf 0:0 /S*/L*/E*
sudo touch -f /L*/E*
sudo touch -f /S*/L*/E*
sudo kextcache -Boot -U /
echo "Finished"
sudo -s
 

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