ASUS Screen Brightness Not Working

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https://bbs.archlinux.org – WonderWoofy wrote:Interesting, so it added the escape character to the acpi_osi string.  Then in taht case, only escape the double quotes.  So it would be like this (shortened for simplicity):# efibootmgr .... -u "initrd=\EFI\arch\initramfs-arch.img ... acpi_osi=\"!Windows 2012\" " With this, bash complains "-bash: !Windows: event not fount".WonderWoofy wrote:You can also try using the piping method, in which you convert from ascii to unicode.  So just as an example, I am going to take out all the extra crap and make it simple:# echo "initrd=\\ (HowTos)