Video Electronics Standards Association
920 Hillview Court, Suite 140
Milpitas, CA 95035
Monitor Timing Standard
Phone: 408-957-9270
Fax: 408-957-9277
VESA and Industry Standards and Guidelines
for Computer Display Monitor Timing (DMT)
Version 1.0, Revision 10
October 29, 2004
This document includes all current VESA Monitor Timing Standards & Guidelines.
'Guidelines' are subjected to the same VESA review and approval process as 'Standards', but
are designated as 'Guidelines' to ease concerns on the part of some VESA members that VESA
is 'endorsing' these timing standards. 'Guidelines' designations are typically used for lower
resolutions or lower refresh rates that are in common industry use in lower-performance
systems. For reference, this document also includes a number of industry standard timings (de-
facto standards) for the computer industry.
This document is the primary means of distribution for all VESA Monitor Timing Standards
and Guidelines. The standards and guidelines covered by this document are outlined on the
following page.
VESA Display Monitor Timing Standard ©Copyright 1994-2004 Video Electronics Standards Association Ver 1.0, Rev. 1.0
Page 1 of 62
VESA Display Monitor Timing Standard ©Copyright 1994-2004 Video Electronics Standards Association Ver 1.0, Rev. 1.0
Page 2 of 62
Resolution
640 x 350
640 x 400
720 x 400
640 x 480
800 x 600
848 x 480
1024 x 768
1152 x 864
1280 x 768
1280 x 960
1280 x 1024
1360 x 768
1400 x 1050
1440 x 900
1600 x 1200
Refresh Rate
85 Hz
85 Hz
85 Hz
60 Hz
72 Hz
75 Hz
85 Hz
56 Hz
60 Hz
72 Hz
75 Hz
85 Hz
60 Hz
43 Hz Interlaced
60 Hz
70 Hz
75 Hz
85 Hz
75 Hz
60 Hz
60 Hz
75 Hz
85 Hz
60 Hz
85 Hz
60 Hz
75 Hz
85 Hz
60 Hz
60 Hz
60 Hz
75 Hz
85 Hz
60 Hz
60 Hz
75 Hz
85 Hz
60 Hz
65 Hz
70 Hz
75 Hz
85 Hz
Pixel
CVT
CVT
CVT
CVT
CVT
CVT
CVT
CVT
CVT
Original
Document
VDMTPROP
VDMTPROP
VDMTPROP
n/a
VS901101
VDMT75HZ
VDMTPROP
VG900601
VG900602
VS900603A
VDMT75HZ
VDMTPROP
AddDMT
Standard Type
VESA Standard
VESA Standard
VESA Standard
Industry Standard
VESA Standard
VESA Standard
VESA Standard
VESA Guidelines
VESA Guidelines
VESA Standard
VESA Standard
VESA Standard
VESA Standard
Industry Standard
VESA Guidelines
VESA Standard
VESA Standard
VESA Standard
VESA Standard
Standards and Guidelines Summary
Horizontal
Frequency
37.9 kHz
37.9 kHz
37.9 kHz
31.5 kHz
37.9 kHz
37.5 kHz
43.3 kHz
35.1 kHz
37.9 kHz
48.1 kHz
46.9 kHz
53.7 kHz
31.0 kHz
35.5 kHz
48.4 kHz
56.5 kHz
60.0 kHz
68.7 kHz
67.5 kHz
47.4 kHz
47.8 kHz
60.3 kHz
68.6 kHz
60.0 kHz
85.9 kHz
64.0 kHz
80.0 kHz
91.1 kHz
47.7 kHz
64.7 kHz
65.3 kHz
82.3 kHz
85.0 kHz
55.5 kHz
59.9 kHz
75.0 kHz
84.8 kHz
75.0 kHz
81.3 kHz
87.5 kHz
93.8 kHz
106.3 kHz
Frequency
31.500 MHz
31.500 MHz
35.500 MHz
25.175 MHz
31.500 MHz
31.500 MHz
36.000 MHz
36.000 MHz
40.000 MHz
50.000 MHz
49.500 MHz
56.250 MHz
33.750 MHz
44.900 MHz
65.000 MHz
75.000 MHz
78.750 MHz
94.500 MHz
108.000 MHz
68.250 MHz CVT Red. Blanking
79.500 MHz
102.250 MHz
117.500 MHz
108.000 MHz
148.500 MHz
108.000 MHz
135.000 MHz
157.500 MHz
85.500 MHz
101.000 MHz CVT Red. Blanking
121.750 MHz
156.000 MHz
179.500 MHz
88.750 MHz CVT Red. Blanking CVT 1.30MA
106.500 MHz
CVT 1.30MA
CVT 1.30MA
136.750 MHz
CVT 1.30MA
157.000 MHz
162.000 MHz
VDMTREV
VDMTREV
175.500 MHz
VDMTREV
189.000 MHz
202.500 MHz
VDMTREV
VDMTREV
229.500 MHz
VESA Standard
VESA Standard
VESA Standard
VESA Standard
VESA Standard
VESA Standard
VESA Standard
VESA Standard
VESA Standard
VESA Standard
VESA Standard
VDMTPROP
VDMTPROP
VDMTREV
VDMT75HZ
VDMTPROP
AddDMT
AddDMT
AddDMT
AddDMT
AddDMT
n/a
VG901101A
VS910801-2
VDMT75HZ
VDMTPROP
VDMTPROP
AddDMT
AddDMT
AddDMT
AddDMT
Date
3/1/96
3/1/96
3/1/96
n/a
12/2/92
10/4/93
3/1/96
8/6/90
8/6/90
8/6/90
10/4/93
3/1/96
3/4/03
n/a
9/10/91
8/9/91
10/4/93
3/1/96
3/1/96
3/4/03
3/4/03
3/4/03
3/4/03
3/1/96
3/1/96
12/18/96
10/4/93
3/1/96
3/4/03
5/13/03
3/4/03
3/4/03
3/4/03
7/14/04
7/14/04
7/14/04
7/14/04
12/18/96
12/18/96
12/18/96
12/18/96
12/18/96
VESA Display Monitor Timing Standard ©Copyright 1994-2004 Video Electronics Standards Association Ver 1.0, Rev. 1.0
Page 3 of 62
Resolution
1680 x 1050
1792 x 1344
1856 x 1392
1920 x 1200
1920 x 1440
Refresh Rate
60 Hz
60 Hz
75 Hz
85 Hz
60 Hz
75 Hz
60 Hz
75 Hz
60 Hz
60 Hz
75 Hz
85 Hz
60 Hz
75 Hz
Horizontal
Frequency
64.7 kHz
65.3 kHz
74.9 kHz
93.9 kHz
83.64 kHz
106.27 kHz
86.33 kHz
112.50 kHz
74.0 kHz
74.6 kHz
94.0 kHz
107.2 kHz
90.000 kHz
112.50 kHz
Pixel
Standard Type
Original
Frequency
Document
119.000 MHz CVT Red. Blanking CVT 1.76MA
CVT 1.76MA
146.250 MHz
187.000 MHz
CVT 1.76MA
CVT 1.76MA
214.75 MHz
VDMTREV
204.750 MHz
261.000 MHz
VDMTREV
VDMTREV
218.250 MHz
VDMTREV
288.000 MHz
154.000 MHz CVT Red. Blanking
AddDMT
AddDMT
193.250 MHz
AddDMT
245.250 MHz
AddDMT
281.250 MHz
234.000 MHz
VDMTREV
VDMTREV
297.000 MHz
VESA Standard
VESA Standard
VESA Standard
VESA Standard
VESA Standard
VESA Standard
CVT
CVT
CVT
CVT
CVT
CVT
Date
7/14/04
7/14/04
7/14/04
7/14/04
9/17/98
9/17/98
9/17/98
9/17/98
3/4/03
3/4/03
3/4/03
3/4/03
9/17/98
9/17/98
VESA Display Monitor Timing Standard ©Copyright 1994-2004 Video Electronics Standards Association Ver 1.0, Rev. 1.0
Page 4 of 62
Intellectual Property
© Copyright 1994, 1995, 1996, 1998 – 2004 Video Electronics Standards Association. All other rights
reserved.
While every precaution has been taken in the preparation of this standard, VESA and its contributors
assume no responsibility for errors or omissions, and make no warranties, expressed or implied, of
functionality or suitability for any purpose.
1. Trademarks
All trademarks used in this document are property of their respective owners. VESA is a trademark of the
Video Electronics Standards Association.
2. Patents
VESA proposal and standards documents are adopted by the Video Electronics Standards Association
without regard to whether their adoption may involve patents on articles, materials, or processes. Such
adoption does not assume any liability to any patent owner, nor does it assume any obligation whatever to
parties adopting the proposal or standards document.
3. Support
If you have a product that incorporates any of the standards in this document, you should ask the
company that manufactured your product for assistance. If you are a display or controller manufacturer,
VESA can assist you with any clarifications you may require. All comments or reported errors should be
submitted in writing to VESA using one of the following methods:
FAX: 408-957-9277, Technical Support
Email: support@vesa.org
Mail: Video Electronics Standards Association., 920 Hillview Ct., Suite 140, Milpitas, CA 95035
modes
Initial Release
Fixed sync polarity of 1024x768 at 60 & 70 Hz.
interlaced
Fixed miscellaneous typos
vertical times
Removed page numbers so new timings can be added
11/4/94 Added notes & comments to clarify timing of
2/16/95
5/4/95 Added EDID IDs for DDC; fixed 1024x768 Interlace
6/14/95 Added BIOS Mode #'s; fixed miscellaneous typos
4/10/96 Added new modes from VDMTPROP V1.0 R0.6
passed on 3/96 (85 Hz standards, 1152x864@75,
1280x960@60)
9/8/96 Reformatted to Word 6 for electronic distribution
4. Revision History
Version 1.0 Revision 0.0
9/12/94
Version 1.0 Revision 0.1 10/10/94
Version 1.0 Revision 0.2
Version 1.0 Revision 0.3
Version 1.0 Revision 0.4
Version 1.0 Revision 0.5
Version 1.0 Revision 0.6
Version 1.0 Revision 0.6a
Version 1.0 Revision 0.7 12/18/96 Added new modes from VDMTREV V1.0 R0.8
passed on 12/96 (1280x1024 @ 60, 1600x1200@60,
65, 70, 75 and 85)
Added 1792x1344, 1856x1392, & 1920x1440, all at
60 and 75 Hz. Corrected EDID code
for
1600x1200@85 Hz
Added 848x480@60Hz, CVT 1280x768 timings,
1360x768@60Hz, CVT 1400x1050 timings, and CVT
1920x1200 timings based on US & Japan Timing
Workgroup requests.
Added CVT 1.30MA (1440 x 900) and CVT 1.76MA
(1680 x 1050) formats.
Version 1.0 Revision 0.9 8/21/03
Version 1.0 Revision 0.8 7/22/98
Version 1.0 Revision 1.0 7/14/04
VESA Display Monitor Timing Standard ©Copyright 1994-2004 Video Electronics Standards Association Ver 1.0, Rev. 1.0
Page 5 of 62
Contents
Intellectual Property.......................................................................................................................................... 5
1. Trademarks ................................................................................................................................................ 5
2. Patents........................................................................................................................................................ 5
3. Support....................................................................................................................................................... 5
4. Revision History ........................................................................................................................................ 5
Timing Specifications for 640x350 at 85 Hz .................................................................................................... 7
Timing Specifications for 640x400 at 85 Hz .................................................................................................... 8
Timing Specifications for 720x400 at 85 Hz .................................................................................................... 9
Timing Specifications for 640x480 at 60, 72, 75 & 85 Hz ........................................................................10-13
Timing Specifications for 800x600 at 56, 60, 72, 75 & 85 Hz ..................................................................14-18
Timing Specifications for 848x480 at 60 Hz .................................................................................................. 19
Timing Specifications for 1024x768 at 43, 60, 70, 75, & 85 Hz ...............................................................20-24
Timing Specifications for 1152x864 at 75 Hz ................................................................................................ 25
Timing Specifications for CVT 0.89M9-R (1280x768 Reduced Blanking).................................................. 26
Timing Specifications for CVT 0.89MR (1280x768 at 60, 75& 85 Hz) ..................................................27-29
Timing Specifications for 1280x960 at 60 & 85 Hz..................................................................................30-31
Timing Specifications for 1280x1024 at 60, 75 & 85 Hz ..........................................................................32-34
Timing Specifications for 1360x768 at 60 Hz ................................................................................................ 35
Timing Specifications for CVT 1.47M3-R (1400x1050 Reduced Blanking)................................................ 36
Timing Specifications for CVT 1.47M3 (1400x1050 at 60, 75 & 85 Hz)................................................37-39
Timing Specifications for CVT 1.30MA-R (1440x900 Reduced Blanking) ................................................. 40
Timing Specifications for CVT 1.30MA (1440x900 at 60, 75 & 85 Hz) .................................................41-43
Timing Specifications for 1600x1200 at 60, 65, 70, 75, & 85 Hz .............................................................44-48
Timing Specifications for CVT 1.76MA-R (1680x1050 Reduced Blanking) ............................................... 49
Timing Specifications for CVT 1.76MA (1680x1050 at 60, 75 & 85 Hz) ...............................................50-52
Timing Specifications for 1792x1344 at 60 & 75 Hz................................................................................53-54
Timing Specifications for 1856x1392 at 60 & 75 Hz................................................................................55-56
Timing Specifications for CVT 2.30MA-R (1900x1200 Reduced Blanking) ............................................... 57
Timing Specifications for CVT 2.30MA (1900x1200 at 60, 75 & 85 Hz) ...............................................58-60
Timing Specifications for 1920x1440 at 60 & 75 Hz................................................................................61-62
VESA Display Monitor Timing Standard ©Copyright 1994-2004 Video Electronics Standards Association Ver 1.0, Rev. 1.0
Page 6 of 62
VESA MONITOR TIMING STANDARD
5/7/95
Proposed:
3/1/96
Adopted:
640 x 350 at 85 Hz (non-interlaced)
Resolution:
EDID ID:
n/a
BIOS Modes: n/a
Method:
*** NOT CVT COMPLIANT ***
Video Display Information Format (VDIF)
Readjusted Timing Data
26.4 usec
=
11.8 msec
=
=
31.7 nsec
= 254.0 nsec
/ line
/ frame
± 0.5%
= 640 x 350 @ 85Hz;
Timing Name
// Pixels
= 640;
Hor Pixels
// Lines
= 350;
Ver Pixels
// KHz
= 37.861;
Hor Frequency
// Hz
= 85.080;
Ver Frequency
// MHz
= 31.500;
Pixel Clock
// Pixels
= 8;
Character Width
// H Phase =
= NONINTERLACED;
Scan Type
= POSITIVE;
// HBlank = 23.1% of HTotal
Hor Sync Polarity
= NEGATIVE; // VBlank = 21.3% of VTotal
Ver Sync Polarity
= 26.413;
104 chars =
Hor Total Time
80 chars =
= 20.317;
Hor Addr Time
80 chars =
= 20.317;
Hor Blank Start
24 chars =
= 6.095;
Hor Blank Time
= 21.333;
84 chars =
Hor Sync Start
0 chars =
= 0.000;
// H Right Border
4 chars =
= 1.016;
// H Front Porch
= 2.032;
8 chars =
Hor Sync Time
12 chars =
= 3.048;
// H Back Porch
= 0.000;
0 chars =
// H Left Border
= 11.754;
Ver Total Time
= 9.244;
Ver Addr Time
= 9.244;
Ver Blank Start
= 2.509;
Ver Blank Time
Ver Sync Start
= 10.090;
// V Bottom Border = 0.000;
= 0.845;
// V Front Porch
= 0.079;
Ver Sync Time
= 1.585;
// V Back Porch
// V Top Border
= 0.000;
// (usec)
// (usec)
// (usec)
// (usec)
// (usec)
// (usec)
// (usec)
// (usec)
// (usec)
// (usec)
// (msec)
// (msec)
// (msec)
// (msec)
// (msec)
// (msec)
// (msec)
// (msec)
// (msec)
// (msec)
445 lines
350 lines
350 lines
95 lines
382 lines
0 lines
32 lines
3 lines
60 lines
0 lines
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
3.8 %
832 Pixels
640 Pixels
640 Pixels
192 Pixels
672 Pixels
0 Pixels
32 Pixels
64 Pixels
96 Pixels
0 Pixels
HT – (1.06xHA)
= 4.88
"Active" Video
Blanking
Sync
Back
Porch
Top / Left
Border
"Addressable" Video
(Addr Time)
Bottom / Right
Border
Front
Porch
Sync
Back
Porch
Definition of Terms
Video
HSync
VSync
VESA Display Monitor Timing Standard ©Copyright 1994-2004 Video Electronics Standards Association Ver 1.0, Rev. 1.0
Blank Start
Sync Start
Blank Time
Sync
Time
Page 7 of 62
VESA MONITOR TIMING STANDARD
5/7/95
Proposed:
3/1/96
Adopted:
640 x 400 at 85 Hz (non-interlaced)
Resolution:
EDID ID:
n/a
BIOS Modes: n/a
Method:
*** NOT CVT COMPLIANT ***
Video Display Information Format (VDIF)
Pre-Adjusted Timing Data
26.4 usec
=
11.8 msec
=
=
31.7 nsec
= 254.0 nsec
= 640 x 400 @ 85Hz;
Timing Name
// Pixels
= 640;
Hor Pixels
// Lines
= 400;
Ver Pixels
// KHz
= 37.861;
Hor Frequency
// Hz
= 85.080;
Ver Frequency
// MHz
= 31.500;
Pixel Clock
// Pixels
= 8;
Character Width
= NONINTERLACED;
// H Phase =
Scan Type
= NEGATIVE; // HBlank = 23.1% of HTotal
Hor Sync Polarity
// VBlank = 10.1% of VTotal
= POSITIVE;
Ver Sync Polarity
= 26.413;
// (usec)
104 chars =
Hor Total Time
80 chars =
// (usec)
= 20.317;
Hor Addr Time
80 chars =
// (usec)
= 20.317;
Hor Blank Start
24 chars =
// (usec)
= 6.095;
Hor Blank Time
= 21.333;
// (usec)
84 chars =
Hor Sync Start
0 chars =
// (usec)
= 0.000;
// H Right Border
4 chars =
// (usec)
= 1.016;
// H Front Porch
= 2.032;
// (usec)
8 chars =
Hor Sync Time
12 chars =
// (usec)
= 3.048;
// H Back Porch
// (usec)
= 0.000;
0 chars =
// H Left Border
// (msec)
= 11.754;
Ver Total Time
= 10.565;
// (msec)
Ver Addr Time
// (msec)
= 10.565;
Ver Blank Start
// (msec)
= 1.189;
Ver Blank Time
= 10.591;
// (msec)
Ver Sync Start
// (msec)
// V Bottom Border = 0.000;
// (msec)
= 0.026;
// V Front Porch
// (msec)
= 0.079;
Ver Sync Time
// V Back Porch
= 1.083;
// (msec)
// V Top Border
// (msec)
= 0.000;
445 lines
400 lines
400 lines
45 lines
401 lines
0 lines
1 lines
3 lines
41 lines
0 lines
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
line
/
/ frame
± 0.5%
3.8 %
832 Pixels
640 Pixels
640 Pixels
192 Pixels
672 Pixels
0 Pixels
32 Pixels
64 Pixels
96 Pixels
0 Pixels
HT – (1.06xHA)
= 4.88
"Active" Video
Blanking
Sync
Back
Porch
Top / Left
Border
"Addressable" Video
(Addr Time)
Bottom / Right
Border
Front
Porch
Sync
Back
Porch
Definition of Terms
Video
HSync
VSync
VESA Display Monitor Timing Standard ©Copyright 1994-2004 Video Electronics Standards Association Ver 1.0, Rev. 1.0
Blank Start
Sync Start
Blank Time
Sync
Time
Page 8 of 62