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  1. [SOLVED] Re: cant adjust brightness and no file under sys/class/backlight

    The filesystem shows like this:https://ubuntuforums.org/image/png;base64,iVBORw0KGgoAAAANSUhEUgAAApEAAABECAIAAABWJfkpAAAACXBIWXMAABMSAAATEgGU2V6dAAAgAElEQVR4nO2dd0BTVxfAz30vCUnYI...
  2. [SOLVED] Re: cant adjust brightness and no file under sys/class/backlight

    [Solved]

    Change grub by "sudo gedit /etc/default/grub"

    GRUB_TIMEOUT=-1 #10 to -1
    GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_osi=Linux" # quiet splash nomodest to quiet splash...
  3. [SOLVED] cant adjust brightness and no file under sys/class/backlight

    I can't change the brightness of my display (the keyboard shortcut nor the setting helps), and there is no file under sys/class/backlight.

    $ sudo find /sys/ -type f -iname '*brightness*' gives me...
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