diff -up xf86-video-nv-2.1.8/src/g80_dac.c.jx xf86-video-nv-2.1.8/src/g80_dac.c --- xf86-video-nv-2.1.8/src/g80_dac.c.jx 2008-01-29 20:55:21.000000000 -0500 +++ xf86-video-nv-2.1.8/src/g80_dac.c 2008-04-29 16:44:08.000000000 -0400 @@ -205,7 +205,7 @@ G80CreateDac(ScrnInfoPtr pScrn, ORNum or pPriv->set_pclk = G80DacSetPClk; output->driver_private = pPriv; output->interlaceAllowed = TRUE; - output->doubleScanAllowed = TRUE; + output->doubleScanAllowed = FALSE; return output; } diff -up xf86-video-nv-2.1.8/src/g80_sor.c.jx xf86-video-nv-2.1.8/src/g80_sor.c --- xf86-video-nv-2.1.8/src/g80_sor.c.jx 2008-03-06 15:33:15.000000000 -0500 +++ xf86-video-nv-2.1.8/src/g80_sor.c 2008-04-29 16:44:16.000000000 -0400 @@ -510,7 +510,7 @@ G80CreateSor(ScrnInfoPtr pScrn, ORNum or pPriv->set_pclk = G80SorSetPClk; output->driver_private = pPriv; output->interlaceAllowed = TRUE; - output->doubleScanAllowed = TRUE; + output->doubleScanAllowed = FALSE; return output; }