Don't force to use max resolution for VMware/VirtualBox. (#3140)

Author: ventoy

Diff for: INSTALL/grub/grub.cfg

@@ -35,6 +35,14 @@ function ventoy_debug_pause {
 
 
 function ventoy_max_resolution {
+    #Skip this for VM
+    smbios -t 1 -s 0x05 --set=system_product;
+    for vtPdt in "VMware"  "VirtualBox"; then
+        if vt_str_casebegin "$system_product"  "$vtPdt"; then
+            return
+        fi
+    fi
+
     vt_enum_video_mode
     vt_get_video_mode 0 vtCurMode
     terminal_output console