Arch Linux

Superadmin

Member

Registered: 2021-08-22

Posts: 92

Backlight Not working on Lenovo Legion 5[SOLVED]

I went through installation process of Lenovo Legion 5.
Backlight not working was a issue on my laptop but some users had this problem fixed by setting

acpi.backlight=native or amdgpu.backlight=0

in the kernel parameters

I also did the same but mine did not work

I just opened sudo nano /etc/defaults/grub
and edited the line containing
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"

to
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash amdgpu.backlight=0"

but nothing happened

Can anyone please help

Last edited by Superadmin (2021-09-05 04:30:39)

Pyntux

Member

From: Serbia

Registered: 2008-12-21

Posts: 391

Re: Backlight Not working on Lenovo Legion 5[SOLVED]

Did you make new grub config after changing /etc/defaults/grub ?

sudo grub-mkconfig -o /boot/grub/grub.cfg

, than reboot?

Last edited by Pyntux (2021-09-04 14:41:25)

---

I do not speak English, but I understand...

Superadmin

Member

Registered: 2021-08-22

Posts: 92

Re: Backlight Not working on Lenovo Legion 5[SOLVED]

Did you make new grub config after changing /etc/defaults/grub ?

sudo grub-mkconfig -o /boot/grub/grub.cfg

, than reboot?

Of course !!

Okay I have this problem fixed with entire factory reset

I installed arch from the beginning.... And this time it is fixed

I don't have any idea what problem was but before I had Linux-lts version that may have brought some issues