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I've got a notebook with optimus technology (intel GPU + nvida GPU when needed). I had installed bumblebee-nvidia, nvidia-driver and primus, as every tutorial says to remove all xorg.conf files since it's not needed in such a setup.

I'm wondering how xorg.conf files are managed/organised. I need to change an option for the intel-gpu but I don't know which file to edit. There is the (main?) folder with some files within it, /usr/share/X11/xorg.conf.d, which just holds other files (like 50-vmmouse.conf for example).

There are also some in /usr/share/bumblebee/default-conf/ and /etc/bumblebee/. All of them including xorg.conf.nvidia, xorg.conf.nouveau and xorg.conf.d.

Which file/folder is correct?

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  • For me, it has always been something in /etc/, not /usr/. What Distro are you on? Jul 5, 2016 at 21:17

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A modern xorg should just pick all *.conf files in /etc/X11/xorg.conf.d/ and use them.

Xorg can figure out a lot by itself, if you just drop a file with the needed change (an entire Section-EndSection) into /etc/X11/xorg.conf.d/, Xorg will use that configuration at a higher precedence than the files in /usr/share/X11/.

The files in /usr/share/X11/xorg.conf.d/ are reserved for the package manager. Xorg will look in there last. Never change anything in there, your package manager may overwrite your changes without asking.

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