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3 Posts

06-17-2021

Malaysia

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Legion 5-15ACH6H cannot change brightness in Linux with intergrated Radeon graphic

2021-06-17, 7:33 AM

Reposted in: https://forums.lenovo.com/t5/Other-Linux-Discussions/Legion-5-15ACH6H-cannot-change-brightness-in-Linux-with-intergrated-Radeon-graphic/m-p/5084243

 

Hi. It has been a few days since I been trying to solve this. I have read a lot and all solution seems to work with 5 Pro, but not with my laptop version.

Current solution for 5 Pro (and probably older generation of 5) is to add "amdgpu.backlight=0" to kernel parameter, but no success for me and a few others of owner of the same laptop.

 

Here I attached the output of `journalctl -b`. Hopefully someone with the skills an knowledge can help me.

 

Thank you.

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3639 Posts

04-02-2014

Mexico

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Re:Legion 5-15ACH6H cannot change brightness in Linux with intergrated Radeon graphic

2021-06-17, 13:47 PM

There is a Linux forum here, you might get better help there. Sorry I do not have idea about Linux.

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4599 Posts

04-23-2019

United States of America

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Re:Legion 5-15ACH6H cannot change brightness in Linux with intergrated Radeon graphic

2021-06-17, 21:59 PM

Hello @hokname,

 

Welcome to the Community Forums.

 

Kindly try posting this in our Linux boards for assistance from other Linux enthusiasts.

You can use this link: https://forums.lenovo.com/t5/Linux-Operating-Systems/ct-p/lx_en


Hope this helps.
Regards,
Jack_Lenovo1



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3 Posts

06-17-2021

Malaysia

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Re:Legion 5-15ACH6H cannot change brightness in Linux with intergrated Radeon graphic

2021-06-18, 5:25 AM

Thanks you rockykoston and Jack_Lenovo1. It is my first time here and I wasn't aware.

 

Reposted at https://forums.lenovo.com/t5/Other-Linux-Discussions/Legion-5-15ACH6H-cannot-change-brightness-in-Linux-with-intergrated-Radeon-graphic/m-p/5084243

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Re:Legion 5-15ACH6H cannot change brightness in Linux with intergrated Radeon graphic

2021-06-22, 15:20 PM

Hello @hokname,

 

Sorry for the late reply.

 

That's no problem. Hopefully another Linux expert can check the post for you.


Regards,

Jack_Lenovo1



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