Ask Your Question

[SOLVED] MacBook Pro Late 2011 (8,2) backlit keyboard not working

asked 2018-11-23 07:11:48 -0500

cim gravatar image

updated 2018-11-26 21:02:18 -0500

Journalctl says:

Starting Load/Save Screen Backlight Brightness of leds:smc::kbd_backlight...
fedora upowerd[2116]: up_kbd_backlight_brightness_read: assertion 'fd >= 0' failed

When I press the hotkeys, it shows the icon but there is no progress bar. Only running this command can modify the brightness:

echo 50 > /sys/class/leds/smc*/brightness

Any help would be appreciated!

edit retag flag offensive close merge delete

2 Answers

Sort by ยป oldest newest most voted

answered 2018-11-26 21:01:51 -0500

cim gravatar image

I'm marking this as solved since doing a dnf upgrade fixed the issue.

edit flag offensive delete link more

answered 2018-11-24 10:50:45 -0500

ed209 gravatar image

Add the above command you wrote in rc.local so it can be executed at every reboot.

edit flag offensive delete link more


You can make a systemd script that will run as a service to turn on keyboard led at boot, another approach will be to set a cron task to do run on reboot, that way it will turn on the leds on boot.

aeperezt gravatar imageaeperezt ( 2018-11-24 17:30:44 -0500 )edit

Hi thanks for the answer, is there anyway to make Fedora use the hotkeys?

cim gravatar imagecim ( 2018-11-25 04:58:17 -0500 )edit

Question Tools


Asked: 2018-11-23 07:11:48 -0500

Seen: 278 times

Last updated: Nov 26 '18