From 746e7b22e1bdfbf2363040367209b4c46b1c2fec Mon Sep 17 00:00:00 2001 From: Adam Jackson Date: Tue, 9 Jun 2009 16:20:11 -0400 Subject: [PATCH] cvt: Allow multiple-of-60Hz refresh rates for reduced blanking. Doing so generates the same timings as given in the DMT spec for 120Hz RB, so we should be set there. Other rates might be legal too but why push our luck. --- hw/xfree86/utils/cvt/cvt.c | 13 ++++++++----- 1 file changed, 8 insertions(+), 5 deletions(-) diff --git a/hw/xfree86/utils/cvt/cvt.c b/hw/xfree86/utils/cvt/cvt.c index 500e31f23..cf0a479f2 100644 --- a/hw/xfree86/utils/cvt/cvt.c +++ b/hw/xfree86/utils/cvt/cvt.c @@ -261,11 +261,14 @@ main (int argc, char *argv[]) HDisplay += 8; } - if (Reduced && (VRefresh != 60.0)) { - fprintf(stderr, "\nERROR: 60Hz refresh rate required for reduced" - " blanking.\n"); - PrintUsage(argv[0]); - return 0; + if (Reduced) { + if ((VRefresh / 60.0) != floor(VRefresh / 60.0)) { + fprintf(stderr, + "\nERROR: Multiple of 60Hz refresh rate required for " + " reduced blanking.\n"); + PrintUsage(argv[0]); + return 0; + } } IsCVT = CVTCheckStandard(HDisplay, VDisplay, VRefresh, Reduced, Verbose);