- Joined
- Jan 1, 2008
- Location
- Colorado Springs, CO
Soooo I posted this one askubuntu, thinking someone has already solved this, but atlas, no one has responded.
Background: Dell Precision M4500. Known working backlit keyboard. When booting after grub keyboard goes dark. Only fix is boot into Windows 7, re-enable keyboard backlight (through Dell keyboard control panel settings, backlight and intensity is ultimately controlled by Bios/firmware). Problem did not exist in Windows 10 (no driver support but fn-key still functioned), Gnome Ubuntu (14.04.4 & 15.10), Debian Testing (rolling, used Gnome), Linux Mint 17.3 (Ubuntu 14.04 based).
Things tried:
- xset led x(x=1-32: all numbers tested individually)
- echo 10 | tee sudo /sys/class/LEDs/dell::kbd<something>/brightness (this file is tied to the Dell smbios API that has kernel hooks in it)
- yell at it
- shake it (I have dual ssds, only risk is the hinges for the display)
- bust out some google-foo and get my *** handed to me....
So, help me Obi-won Kenobi, you're my only hope!
Background: Dell Precision M4500. Known working backlit keyboard. When booting after grub keyboard goes dark. Only fix is boot into Windows 7, re-enable keyboard backlight (through Dell keyboard control panel settings, backlight and intensity is ultimately controlled by Bios/firmware). Problem did not exist in Windows 10 (no driver support but fn-key still functioned), Gnome Ubuntu (14.04.4 & 15.10), Debian Testing (rolling, used Gnome), Linux Mint 17.3 (Ubuntu 14.04 based).
Things tried:
- xset led x(x=1-32: all numbers tested individually)
- echo 10 | tee sudo /sys/class/LEDs/dell::kbd<something>/brightness (this file is tied to the Dell smbios API that has kernel hooks in it)
- yell at it
- shake it (I have dual ssds, only risk is the hinges for the display)
- bust out some google-foo and get my *** handed to me....
So, help me Obi-won Kenobi, you're my only hope!