In another post I explained how to force a specific EDID on boot. It requires patching the initramfs to contain the EDID and then patching GRUB. On Fedora, this is slightly different. So I wanted to cover that here. Install Patched EDID Install the patched EDID (this example uses the pre-patched EDID attached here) and modify GRUB to use the new EDID. sudo mkdir -p /lib/firmware/edid cd /lib/firmware/edid sudo wget https://gist.