From owner-freebsd-current  Sun Sep 20 02:06:49 1998
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To: current@FreeBSD.ORG
cc: yokota@zodiac.mech.utsunomiya-u.ac.jp
Subject: SC_BAD_FLICKER broken?
Date: Sun, 20 Sep 1998 18:07:19 +0900
From: Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp>
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Would anybody who is experiencing SC_BAD_FLICKER not working please try
the following patch for /sys/i386/isa/videoio.c and see if it works?

Issues regarding what name for this option is most appropriate and
if this should be an option at all in the first place, will be
dealt with later.  I would like to make things work first!

Thank you.
Kazu

Index: videoio.c
===================================================================
RCS file: /src/CVS/src/sys/i386/isa/videoio.c,v
retrieving revision 1.1
diff -u -r1.1 videoio.c
--- videoio.c	1998/09/15 18:16:38	1.1
+++ videoio.c	1998/09/20 09:00:11
@@ -1092,6 +1092,7 @@
     if (page > 3)
 	segment -= 0xe000;
 
+#ifndef SC_BAD_FLICKER
     if (adapter[ad].va_type == KD_VGA) {	/* what about EGA? XXX */
 	s = splhigh();
 	outb(TSIDX, 0x00); outb(TSREG, 0x01);
@@ -1100,6 +1101,7 @@
 	outb(TSIDX, 0x00); outb(TSREG, 0x03);
 	splx(s);
     }
+#endif
 
     set_font_mode(&adapter[ad], buf);
     if (fontsize == 32) {
@@ -1114,6 +1116,7 @@
     }
     set_normal_mode(&adapter[ad], buf);
 
+#ifndef SC_BAD_FLICKER
     if (adapter[ad].va_type == KD_VGA) {
 	s = splhigh();
 	outb(TSIDX, 0x00); outb(TSREG, 0x01);
@@ -1121,6 +1124,7 @@
 	outb(TSIDX, 0x00); outb(TSREG, 0x03);
 	splx(s);
     }
+#endif
 
     return 0;
 }
@@ -1156,6 +1160,7 @@
     if (page > 3)
 	segment -= 0xe000;
 
+#ifndef SC_BAD_FLICKER
     if (adapter[ad].va_type == KD_VGA) {	/* what about EGA? XXX */
 	s = splhigh();
 	outb(TSIDX, 0x00); outb(TSREG, 0x01);
@@ -1164,6 +1169,7 @@
 	outb(TSIDX, 0x00); outb(TSREG, 0x03);
 	splx(s);
     }
+#endif
 
     set_font_mode(&adapter[ad], buf);
     if (fontsize == 32) {
@@ -1178,6 +1184,7 @@
     }
     set_normal_mode(&adapter[ad], buf);
 
+#ifndef SC_BAD_FLICKER
     if (adapter[ad].va_type == KD_VGA) {
 	s = splhigh();
 	outb(TSIDX, 0x00); outb(TSREG, 0x01);
@@ -1185,6 +1192,7 @@
 	outb(TSIDX, 0x00); outb(TSREG, 0x03);
 	splx(s);
     }
+#endif
 
     return 0;
 }

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