$NetBSD: patch-bb,v 1.1 2003/07/31 15:13:39 bencollver Exp $

--- src/g400.c.orig	Wed Jul 30 07:06:43 2003
+++ src/g400.c
@@ -593,9 +593,20 @@ static int g400_test(void)
 {
     int found, id;
     unsigned long buf[64];
+    int _ioperm=0;
+     
+    if (getenv("IOPERM") == NULL) {
+       _ioperm=1;
+        if (iopl(3) < 0) {
+          printf("svgalib: cannot get I/O permissions\n");
+          exit(1);
+        }
+    }
     
     found=__svgalib_pci_find_vendor_vga(VENDOR_ID,buf,0);
     
+    if (_ioperm) iopl(0);
+
     if(found) return 0;
     
     id=(buf[0]>>16)&0xffff;