Please save my eyes: Brightness control not working

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Some information about the missing grub config in Silverblue:

/etc/default/grub is missing on Silverblue 41 fresh install

Yes, the GRUB config is now a static config in Atomic Desktops starting with Fedora 41. See: Silverblue 41 installation is missing `/boot/grub2/grubenv` and `/etc/default/grub` files · Issue #746 · coreos/bootupd · GitHub If you want to edit GRUB specific values, you should now add your config as a distinct configuration file: $ sudo cat /boot/grub2/user.cfg set timeout=10 If you edit the main config file /boot/grub2/grub.cfg, it may be overridden when we’ll start automatically updating the s…