I've just noticed a file in /etc/X11/xorg.conf.d called '.20-dri3_radeon.conf.un~'; it's where I also have my '20-dri3_radeon.conf' file to set some Xorg configuration options. This hidden file looks like the .conf file but filled with several unprintable characters in-between, making it look like a binary file, and its modification date is last boot.
Anyone knows what it was created by?
Thanks in advance