<s>
A	O
mode	O
line	O
may	O
also	O
refer	O
to	O
a	O
line	O
for	O
the	O
Emacs	B-Application
and	O
Vim	B-Application
editors	I-Application
that	O
provides	O
information	O
about	O
the	O
file	O
and	O
modes	O
.	O
</s>
<s>
A	O
modeline	O
is	O
a	O
configuration	O
line	O
in	O
xorg.conf	B-Protocol
or	O
the	O
XFree86	B-Device
configuration	B-Protocol
file	I-Protocol
(	O
XF86Config	O
)	O
that	O
provides	O
information	O
to	O
the	O
display	O
server	O
about	O
a	O
connected	O
computer	B-Device
monitor	I-Device
or	O
television	O
and	O
how	O
to	O
drive	O
it	O
at	O
a	O
specified	O
display	B-General_Concept
resolution	I-General_Concept
.	O
</s>
<s>
The	O
Modeline	O
is	O
based	O
on	O
the	O
Generalized	B-General_Concept
Timing	I-General_Concept
Formula	I-General_Concept
or	O
the	O
Coordinated	B-General_Concept
Video	I-General_Concept
Timings	I-General_Concept
standards	O
produced	O
by	O
VESA	O
.	O
</s>
<s>
Modelines	O
are	O
now	O
rarely	O
used	O
,	O
but	O
XFree86	B-Device
and	O
the	O
Xorg	B-Operating_System
Server	I-Operating_System
still	O
allow	O
them	O
to	O
be	O
set	O
should	O
the	O
EDID	B-General_Concept
information	O
be	O
inadequate	O
.	O
</s>
<s>
There	O
are	O
also	O
options	O
for	O
interlaced	O
and	O
double	B-Device
scan	I-Device
modes	O
.	O
</s>
<s>
Modelines	O
may	O
no	O
longer	O
be	O
necessary	O
in	O
XFree86	B-Device
versions	O
4	O
and	O
higher	O
,	O
since	O
for	O
many	O
monitors	O
and	O
HDTVs	B-Device
they	O
are	O
now	O
calculated	O
by	O
the	O
X	O
server	O
at	O
startup	O
based	O
on	O
two	O
factors	O
:	O
</s>
<s>
EDID	B-General_Concept
is	O
not	O
always	O
completely	O
accurate	O
,	O
and	O
for	O
some	O
situations	O
such	O
as	O
older	O
or	O
unusual	O
display	O
hardware	O
or	O
many	O
HDTVs	B-Device
,	O
it	O
will	O
be	O
necessary	O
to	O
create	O
a	O
modeline	O
to	O
get	O
the	O
setting	O
right	O
.	O
</s>
<s>
The	O
EDID	B-General_Concept
information	O
can	O
be	O
obtained	O
by	O
using	O
the	O
command	O
""	O
and	O
looking	O
at	O
/var/log/XFree86.0.log	O
.	O
</s>
