Comment # 4 on bug 69675 from Alex Deucher

Something like this:

diff --git a/drivers/gpu/drm/radeon/r600_hdmi.c
b/drivers/gpu/drm/radeon/r600_hdmi.c
index b0fa600..f7d2766 100644
--- a/drivers/gpu/drm/radeon/r600_hdmi.c
+++ b/drivers/gpu/drm/radeon/r600_hdmi.c
@@ -63,7 +63,7 @@ static const struct radeon_hdmi_acr
r600_hdmi_predefined_acr[] = {
     {  27027,  4096,  27027,  6272,  30030,  6144,  27027 }, /*  27.00*1.001
MHz */
     {  54000,  4096,  54000,  6272,  60000,  6144,  54000 }, /*  54.00      
MHz */
     {  54054,  4096,  54054,  6272,  60060,  6144,  54054 }, /*  54.00*1.001
MHz */
-    {  74175, 11648, 210937, 17836, 234375, 11648, 140625 }, /*  74.25/1.001
MHz */
+    {  74180, 11648, 210937, 17836, 234375, 11648, 140625 }, /*  74.25/1.001
MHz */
     {  74250,  4096,  74250,  6272,  82500,  6144,  74250 }, /*  74.25      
MHz */
     { 148351, 11648, 421875,  8918, 234375,  5824, 140625 }, /* 148.50/1.001
MHz */
     { 148500,  4096, 148500,  6272, 165000,  6144, 148500 }, /* 148.50      
MHz */