# \[FIXED\] Tensorbook: How to turn on keyboard backlights?

**URL:** <https://deeptalk.lambda.ai/t/fixed-tensorbook-how-to-turn-on-keyboard-backlights/921>\
**Category:** Technical Help\
**Created:** [April 23, 2019, 9:55am UTC](https://deeptalk.lambda.ai/t/fixed-tensorbook-how-to-turn-on-keyboard-backlights/921 "2019-04-23T09:55:50Z")\
**Posts on this page:** 1\
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**Author:** ![pranav-ust](https://avatars.discourse-cdn.com/v4/letter/p/e36b37/32.png) [@pranav-ust](https://deeptalk.lambda.ai/u/pranav-ust)\
**Post date:** [April 23, 2019, 5:38pm UTC](https://deeptalk.lambda.ai/t/fixed-tensorbook-how-to-turn-on-keyboard-backlights/921/2 "2019-04-23T17:38:09Z")

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For the keyboard backlight, add these kernel parameters.

acpi\_osi=! acpi\_osi=Linux

If you need a guide on how to add kernel parameters, here is one.

> <https://askubuntu.com/questions/19486/how-do-i-add-a-kernel-boot-parameter/19487#19487>

Some users may experience num lock problem. For that, try to install numlockx package.

Press Fn+/ for colour changes.

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