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[PATCH] fbmon: horizontal frequency rounding fix
author
Jon Smirl
<jonsmirl@gmail.com>
Wed, 27 Jul 2005 18:46:03 +0000
(11:46 -0700)
committer
Linus Torvalds
<torvalds@g5.osdl.org>
Wed, 27 Jul 2005 23:26:18 +0000
(16:26 -0700)
Fix rounding error when mode frequency is very close to monitor limit
Signed-off-by: Jon Smirl <jonsmirl@gmail.com>
Acked-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
drivers/video/fbmon.c
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diff --git
a/drivers/video/fbmon.c
b/drivers/video/fbmon.c
index 6cd1976548d4d157ae7d530de585684f6947d3d0..c2718bb949493bc8fb6a61a7e0ef94fd281650fb 100644
(file)
--- 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 ||