I’m down to 2 laptops and a pi. I’ve got 2 full fledged desktops to sell/gift to someone who needs them.
Oh ya i forgot i also have a Pi 400. 
Plus 4 Desktops.
@fbodymechanic
I just checked the site i use and the phone numbers are exactly the same but it seems they don’t have this outlet site for Canada. Next time I’m going to ask. I already have the KM300 RGB keyboard and mouse combo shipped as it was on sale and i had some rewards points to use up that expire if you don’t.
Maybe we should move this to PM of we’re going to keep blowing up this thread lol. We’re definitely clogging up a help thread.
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I did install it with Grub and not the systemd-boot. Will now try video.use_native_backlight=1.
Nope still doesn’t work.
I’m struggling with the fact it’s not working with one of the other three kernel parameters i gave you. Usually lenovo works with acpi_backlight=vendor or acpi_backlight=native or acpi_backlight=video. Have you checked dmesg for errors related to backlight also journalctl.
dmesg returned this at some point: [ 1.313936] video: unknown parameter 'use_native_backlight' ignored
Just retried with acpi_backlighth=vendor and found this in dmesg:
[ 7.285807] amdgpu 0000:05:00.0: amdgpu: [drm] Skipping amdgpu DM backlight registration
Don’t know what to do tho.
Can i see what this shows. Post the url from the command.
cat /etc/default/grub | eos-sendlog
Edit: Also have you checked the f1 function key that is is not on lock. I’m assuming you are pressing the brightness keys to try to adjust the backlight.
If it is on lock there will be a white led lit on the escape key.
:edit: but think this is a red herring as the commands do not work from the terminal…
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What commands are you referring to?
@One_Sleeve
Try using both of these like this in the grub command line and update grub. Hopefully you’ve removed everything else you have tried.
acpi_osi=Linux acpi_backlight=vendor
I’m am pressing f1 when trying to control brightness, so that shouldn’t be the issue. I also tried using the light pakage, but to no avail.
cat /etc/default/grub | eos-sendlog
returned
# GRUB boot loader configuration
GRUB_DEFAULT="0"
GRUB_TIMEOUT="5"
GRUB_DISTRIBUTOR="EndeavourOS"
GRUB_CMDLINE_LINUX_DEFAULT="nowatchdog nvme_load=YES loglevel=3 nvidia-drm.modeset=1 acpi_backlight=vendor"
GRUB_CMDLINE_LINUX=""
# Preload both GPT and MBR modules so that they are not missed
GRUB_PRELOAD_MODULES="part_gpt part_msdos"
# Uncomment to enable booting from LUKS encrypted devices
#GRUB_ENABLE_CRYPTODISK="y"
# Set to 'countdown' or 'hidden' to change timeout behavior,
# press ESC key to display menu.
GRUB_TIMEOUT_STYLE="menu"
# Uncomment to use basic console
GRUB_TERMINAL_INPUT="console"
# Uncomment to disable graphical terminal
#GRUB_TERMINAL_OUTPUT="console"
# The resolution used on graphical terminal
# note that you can use only modes which your graphic card supports via VBE
# you can see them in real GRUB with the command `videoinfo'
GRUB_GFXMODE="auto"
# Uncomment to allow the kernel use the same resolution used by grub
GRUB_GFXPAYLOAD_LINUX="keep"
# Uncomment if you want GRUB to pass to the Linux kernel the old parameter
# format "root=/dev/xxx" instead of "root=/dev/disk/by-uuid/xxx"
#GRUB_DISABLE_LINUX_UUID="true"
# Uncomment to disable generation of recovery mode menu entries
GRUB_DISABLE_RECOVERY="true"
# Uncomment and set to the desired menu colors. Used by normal and wallpaper
# modes only. Entries specified as foreground/background.
#GRUB_COLOR_NORMAL="light-blue/black"
#GRUB_COLOR_HIGHLIGHT="light-cyan/blue"
# Uncomment one of them for the gfx desired, a image background or a gfxtheme
GRUB_BACKGROUND="/usr/share/endeavouros/splash.png"
#GRUB_THEME="/path/to/gfxtheme"
# Uncomment to get a beep at GRUB start
#GRUB_INIT_TUNE="480 440 1"
# Uncomment to make GRUB remember the last selection. This requires
# setting 'GRUB_DEFAULT=saved' above.
#GRUB_SAVEDEFAULT="true"
# Uncomment to disable submenus in boot menu
GRUB_DISABLE_SUBMENU="false"
# Probing for other operating systems is disabled for security reasons. Read
# documentation on GRUB_DISABLE_OS_PROBER, if still want to enable this
# functionality install os-prober and uncomment to detect and include other
# operating systems.
#GRUB_DISABLE_OS_PROBER="false"
No don’t press f1. F1 key acts as a function lock. It need to be on or off. You would normally use Fn and the key.
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Ah sorry meant fn not f1.
This also didn’t work.
I see you have nvidia and amd and it is rendering on amd. I wonder how the hardware is setup to work? You would think it should use back light keys either using amd or nvidia but i don’t know. Maybe it’s set for nvidia?
ls /sys/class/backlight/
ls /sys/class/backlight/
returned:
ideapad@
That’s weird? All the threads I’m looking through show nvidia also. 