Fix output detection on ProSavage

The registers were found by running "s3switch regdump" after
switching outputs on/off and changing TV format using s3switch.

It seems like the TV output status can not be read on ProSavage.
I have not checked whether it can be changed either.

Signed-off-by: Tormod Volden <debian.tormod@gmail.com>

1 files changed, 7 insertions, 0 deletions

diff --git a/s3switch.c b/s3switch.c
index 246f1d7..99beca9 100644
--- a/s3switch.c
+++ b/s3switch.c
@@ -181,6 +181,13 @@ fetch_bios_data()
 	outb( 0x6b, 0x3d4 );
 	jDevices = inb( 0x3d5 );
     }
+    else if( ChipClass == S3_PROSAVAGE )
+    {
+	outb( 0x5f, 0x3c4 );
+	jTvFormat = inb( 0x3c5 );
+	outb( 0x6b, 0x3d4 );
+	jDevices = inb( 0x3d5 );
+    }
     else 
     {
 	outb( 0x6b, 0x3d4 );