I'm using Zorin OS 17.3 on an Acer Nitro 5 AN515-58, and no matter what I do, I can’t get the brightness control to work. I’ve already tried editing the GRUB parameters based on forum suggestions, but it didn’t help. My question is: when I upgrade to Zorin 18, will this issue be fixed? If not, I’m considering not upgrading or possibly switching to another distribution.
Which kernel parameters did you try?
You could try it with this solution on Zorin 18, maybe it also works on Zorin 17:
acpi_backlight=native
Run sudo update-grub afterwards and reboot.
If you change this file, run 'update-grub' afterwards to update # /boot/grub/grub.cfg. # For full documentation of the options in this file, see: # info -f grub -n 'Simple configuration' GRUB_DEFAULT=0 GRUB_TIMEOUT_STYLE=menu GRUB_TIMEOUT=10 GRUB_DISTRIBUTOR=lsb_release -i -s 2> /dev/null || echo Debian #GRUB_CMDLINE_LINUX_DEFAULT=“quiet splash pcie_aspm=force acpi_backlight=> #GRUB_CMDLINE_LINUX_DEFAULT="quiet splash i915.modeset=1 acpi_backlight=v> <_dpcd_backlight=1 acpi_osi=Linux vt.handoff=7" #GRUB_CMDLINE_LINUX_DEFAULT="quiet splash i915.modeset=1" #GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_backlight=native acpi_back> #GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_backlight=native acpi_back> GRUB_CMDLINE_LINUX="" # Uncomment to enable BadRAM filtering, modify to suit your needs # This works with Linux (no patch required) and with any kernel that obta> # the memory map information from GRUB (GNU Mach, kernel of FreeBSD ...) #GRUB_BADRAM="0x01234567,0xfefefefe,0x89abcdef,0xefefefef" # Uncomment to disable graphical terminal (grub-pc only) #GRUB_TERMINAL=console # The resolution used on graphical terminal # note that you can use only modes which your graphic card supports via V> # you can see them in real GRUB with the command vbeinfo'#GRUB_GFXMODE=640x480 # Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to L> #GRUB_DISABLE_LINUX_UUID=true # Uncomment to disable generation of recovery mode menu entries #GRUB_DISABLE_RECOVERY="true" # Uncomment to get a beep at grub start #GRUB_INIT_TUNE="480 440 1" GRUB_THEME=/usr/share/grub/themes/zorin/theme.txt GRUB_DISABLE_OS_PROBER=false
In mint forum this solution was mentioned for your laptop to solve the issue:
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash amdgpu.backlight=0 acpi_backlight=native"
I also found this one in Endeavour forum
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash pcie_aspm=force acpi_backlight=native"
Don't test too much parameters at once. Test one command, run sudo update-grub and reboot, look if it helps, if not, remove the added parameter and test the next one.