xf86-video-intel: Branch 'modesetting' - src/i830_display.c

[Keith Packard]

 src/i830_display.c |    2 ++
 1 files changed, 2 insertions(+)

New commits:
diff-tree a6d438ebe3cf141a0331e0cd55eb9b5e137a5e37 (from c7083a267209c93b2a91ef00dea2ca840400d160)
Author: Keith Packard <keithp at neko.keithp.com>
Date:   Mon Jul 17 14:11:19 2006 -0400

    Disable spread spectrum clock usage.
    
    The spread spectrum clock generator that improves EMI characteristics for
    laptop screens lives in an external chip that is programmed over an i2c bus.
    Without correct programming, attempts to use this mode for the LVDS can
    result in a DC signal being sent to the panel.
    
    Until we find programming information for this external chip, we should
    leave this mode disabled.

diff --git a/src/i830_display.c b/src/i830_display.c
index 1496c3a..6eb2a33 100644
--- a/src/i830_display.c
+++ b/src/i830_display.c
@@ -476,8 +476,10 @@ i830PipeSetMode(ScrnInfoPtr pScrn, Displ
 
     if (outputs & (PIPE_TV_ACTIVE | PIPE_TV2_ACTIVE))
 	dpll |= PLL_REF_INPUT_TVCLKINBC;
+#if 0    
     else if (outputs & (PIPE_LCD_ACTIVE))
 	dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN;
+#endif
     else	
 	dpll |= PLL_REF_INPUT_DREFCLK;