diff --git a/arch-install.sh b/arch-install.sh
index d914ea1..ec376af 100755
--- a/arch-install.sh
+++ b/arch-install.sh
@@ -1638,6 +1638,7 @@ elif [ "${amd}" == "deck" ]; then
     cp -v /opt/${repo}/steam-deck/xorg.conf.d/* ${mountpoint}/etc/X11/xorg.conf.d/
     cp -v /opt/${repo}/steam-deck/NetworkManager/conf.d/default-wifi-powersave-on.conf ${mountpoint}/etc/NetworkManager/conf.d/default-wifi-powersave-on.conf
     cp -v /opt/${repo}/steam-deck/grub.d/* ${mountpoint}/etc/grub.d/
+    sed -i 's|GRUB_GFXMODE=.*$|GRUB_GFXMODE="1280x800"|' ${mountpoint}/etc/default/grub
 
     # An open-source Linux userspace driver for Valves Steam Deck hardware.
     # https://open-sd.gitlab.io/opensd-docs/opensd-docs/latest/users_manual/run>