actually paste the entire file

grub

@@ -1,3 +1,15 @@
+# GRUB boot loader configuration
+
+GRUB_DEFAULT=0
+GRUB_TIMEOUT=5
+GRUB_DISTRIBUTOR="Arch"
+GRUB_CMDLINE_LINUX_DEFAULT=" nomodeset audit=0 loglevel=3 pcie_acs_override=downstream intel_iommu=on vfio-pci.ids=1849:0412,1849:0c0c,8086:0412,8086:0c0c video=vesafb:off,efifb:off,simplefb:off nofb"
+GRUB_CMDLINE_LINUX=""
+
+# Preload both GPT and MBR modules so that they are not missed
+GRUB_PRELOAD_MODULES="part_gpt part_msdos"
+
+# Uncomment to enable booting from LUKS encrypted devices
 #GRUB_ENABLE_CRYPTODISK=y
 
 # Set to 'countdown' or 'hidden' to change timeout behavior,