on linux backlight keyboard not working brightness set to 100% , windows 11 after driver install Chrome EC Driver and chromeos working fine. Any help please thanks
Hi @skarp,
The back light of the keyboard might requires a special way to change, meaning it requires a custom driver, if that is the case, then you ether have to find one online or make one. I can’t help you make one, perhaps you could ask someone else with more knowledge,
also include the name of your device.
To be completely honest, this sounds like you used an AI.
To answer OPs question: use ectool. I can’t recall the exact commands off the top of my head, but ectool help should get you there
hi, what I did try still no luck 
skarp@nobara:~$ sudo ectool pwmgetkblight
[sudo] password for skarp:
Keyboard backlight disabled.
skarp@nobara:~$ sudo ectool pwmsetkblight 100
Keyboard backlight set.
skarp@nobara:~$ sudo ectool pwmgetkblight
Keyboard backlight disabled.
With rgb backlights specifically, as well as turning the brightness all the way up, you need to tell ectool what color should be set. This is a different command that you can get from the help menu. I can never remember what it is, but you can probably grep for rgb
1 Like
sadly nothing with rgb, closest led command but not working…
skarp@nobara:~$ sudo ectool led rgb auto
Bad LED name: rgb
Valid LED names: battery power adapter left right recovery_hwreinit sysrq debug
Long story short chromium-ectool package from the Terra repository is outdated, I did newer from source and kbrgb back to live little stress but… thanks ethanthesleepyone for way in the right direction.
1 Like
Hi I’m in the same situation as you were - would you mind going into a little more detail about how you solved this problem? I have ectool installed from terra repo but I’m not sure where to find the source, and which commands to use. Thank you!
Hi, google is your best friend i did it myself, you need compile from source code
Dustin L. Howett / ectool · GitLab or change to archlinux will be in aur 
good luck is not hard.
1 Like
Thank you! I’ll check that out
1 Like
Ok I’m there! Thanks for the help to everyone in this thread. In case anyone else has the same issue, it does seem to be that the osiris kb requires rgb config which isn’t currently included in the ectool in the terra repo. I didn’t compile my own like skarp but got the latest from here Artifacts · Dustin L. Howett / ectool · GitLab
Then the command for setting the backlight was ectool rgbkbd clear 9999999
(I’m absolutely not sure if this is the right way to do things, but I downloaded the latest build from the link above, extracted it then went to that directory in the terminal, so to run ectool I actually did sudo ./ectool rgbkbd clear 9999999 . If that’s a bad idea please someone let me know!
Different numbers in the 9999999 give different colours on the LED. 9999999 is a whiteish colour which suits me. There’s also a cool demo mode (ectool rgbkbd gives you all the options)
I’m on Fedora KDE and the keyboard brightness was affecting this too, so it’s worth checking that’s on full too!
No problem, now only is temporary need make it perm 
cronjob done
1 Like
sad but functionality hit and miss very unreliable.
how so? It seems quite reliable on this system now, other than as you noted it’s not permanent
did not work as I had hoped with the cronjob @reboot, what I did was set the demo mode at startup and the demo off at logout script, but the rgbkbd clear… just does not want to work properly.