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-rw-r--r--vidix/nvidia_vid.c12
1 files changed, 11 insertions, 1 deletions
diff --git a/vidix/nvidia_vid.c b/vidix/nvidia_vid.c
index 94443a8921..cd928bd133 100644
--- a/vidix/nvidia_vid.c
+++ b/vidix/nvidia_vid.c
@@ -658,7 +658,11 @@ static void nv_getscreenproperties(struct rivatv_info *info){
else info->depth = 0x04 << bpp;
/*get screen width*/
VID_WR08(info->chip.PCIO, 0x03D4, 0x1);
- info->screen_x = (1 + VID_RD08(info->chip.PCIO, 0x3D5)) * 8;
+ info->screen_x = VID_RD08(info->chip.PCIO, 0x3D5);
+ /* NV_PCRTC_HORIZ_EXTRA_DISPLAY_END_8 */
+ VID_WR08 (info->chip.PCIO, 0x3D4, 0x2D);
+ info->screen_x |= (VID_RD08 (info->chip.PCIO, 0x3D5) & 0x02) << 7;
+ info->screen_x = (info->screen_x + 1) << 3;
/*get screen height*/
/* get first 8 bits in VT_DISPLAY_END*/
VID_WR08(info->chip.PCIO, 0x03D4, 0x12);
@@ -669,6 +673,12 @@ static void nv_getscreenproperties(struct rivatv_info *info){
/* and the 10th in CRTC_OVERFLOW*/
info->screen_y |=(VID_RD08(info->chip.PCIO,0x03D5) &0x40)<<3;
++info->screen_y;
+ /* NV_PCRTC_EXTRA_VERT_DISPLAY_END_10 */
+ VID_WR08(info->chip.PCIO,0x03D4,0x25);
+ info->screen_y |= (VID_RD08(info->chip.PCIO,0x03D5) &0x02)<<9;
+ /* NV_PCRTC_???_VERT_DISPLAY_END_11 */
+ VID_WR08(info->chip.PCIO,0x03D4,0x41);
+ info->screen_y |= (VID_RD08(info->chip.PCIO,0x03D5) &0x04)<<9;
/* NV_PCRTC_OFFSET */
VID_WR08 (info->chip.PCIO, 0x3D4, 0x13);