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-rw-r--r--drivers/video/fbmon.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/video/fbmon.c b/drivers/video/fbmon.c
index 6cd1976548d4..c2718bb94949 100644
--- a/drivers/video/fbmon.c
+++ b/drivers/video/fbmon.c
@@ -1241,6 +1241,8 @@ int fb_validate_mode(const struct fb_var_screeninfo *var, struct fb_info *info)
vtotal *= 2;
hfreq = pixclock/htotal;
+ hfreq = (hfreq + 500) / 1000 * 1000;
+
vfreq = hfreq/vtotal;
return (vfreq < vfmin || vfreq > vfmax ||