From 159fed47bcfab67d36d4959fb3ac952a7ad9128c Mon Sep 17 00:00:00 2001
From: "William A. Kennington III" <william@wkennington.com>
Date: Fri, 29 May 2015 12:09:08 -0700
Subject: [PATCH] nixos/grub: Fix video display on efi

---
 nixos/modules/system/boot/loader/grub/install-grub.pl | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/nixos/modules/system/boot/loader/grub/install-grub.pl b/nixos/modules/system/boot/loader/grub/install-grub.pl
index 3ca30b58023b..fcf5871203d5 100644
--- a/nixos/modules/system/boot/loader/grub/install-grub.pl
+++ b/nixos/modules/system/boot/loader/grub/install-grub.pl
@@ -254,10 +254,15 @@ else {
           set timeout=$timeout
         fi
 
+        # Setup the graphics stack for bios and efi systems
+        insmod vbe
+        insmod efi_gop
+        insmod efi_uga
+        insmod font
         if loadfont " . $grubBoot->path . "/grub/fonts/unicode.pf2; then
-          set gfxmode=640x480
           insmod gfxterm
-          insmod vbe
+          set gfxmode=auto
+          set gfxpayload=keep
           terminal_output gfxterm
         fi
     ";