• Brightness keys Thinkpad T410

Posted: **Thu Mar 21, 2024 3:23 am**

Hi, I have a Thinkpad T410 and the brightness keys do not work in MATE desktop, how do I make them work?
Thanks

Posted: **Thu Mar 21, 2024 8:18 am**

Do you have the appropriate module loaded?

Try in a terminal as root

kldload acpi_ibm

If that doesn't work try

kldload acpi_video

And see if that helps

Posted: **Thu Mar 21, 2024 8:21 am**

https://forums.freebsd.org/threads/brig ... sue.60580/

Posted: **Thu Mar 21, 2024 8:21 am**

https://forums.freebsd.org/threads/brig ... sue.60580/

Posted: **Thu Mar 21, 2024 8:43 am**

Here's a workaround. https://codeberg.org/nansys-dev/brightness-control

Posted: **Sun Mar 24, 2024 1:00 pm**

neville wrote: ↑Thu Mar 21, 2024 8:18 am Do you have the appropriate module loaded?

Try in a terminal as root

kldload acpi_ibm

If that doesn't work try

kldload acpi_video

And see if that helps

Ah sorry for not replying, this did not work.

Posted: **Sun Mar 24, 2024 1:06 pm**

The brightness keys don't work but doing "sysctl dev.api_ibm.0.lcd_brightness=0" or any other number works.

Posted: **Sun Mar 24, 2024 1:16 pm**

neville wrote: ↑Thu Mar 21, 2024 8:21 am https://forums.freebsd.org/threads/brig ... sue.60580/

This worked

. I used the information at https://man.freebsd.org/cgi/man.cgi?que ... ease-ports in the EXAMPLES section to make the brightness keys work.
And now it works perfectly!

Posted: **Sun Mar 24, 2024 1:34 pm**

chadbsd wrote: ↑Thu Mar 21, 2024 8:43 am Here's a workaround. https://codeberg.org/nansys-dev/brightness-control

Thanks for the workaround.

Brightness keys Thinkpad T410

Brightness keys Thinkpad T410

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