I have two identical ASUS 1920x1200 monitors. The EDID on one of them got corrupted. Dumped the EDID from the other monitor, put in a file in /usr/lib/firmware

I have two identical ASUS 1920x1200 monitors. The EDID on one of them got corrupted. Dumped the EDID from the other monitor, put in a file in /usr/lib/firmware/edid, and added this to the grub command: drm.edid_firmware=DVI-D-2:edid/asus-1920x1200.bin DVI-D-2 is the moniker for the broken monitor. Long Live Linux!