VESA_Timing
Monitor Timing Standard 860 Hillview Court, Suite 150 Phone: 408-957-9270 Milpitas, CA 95035 Fax: 408-957-9277
Proposed VESA and Industry Standards and Guidelines
for Computer Display Monitor Timing (DMT)
Version 1.0, Revision 12p, Draft 1
Date is 3/13/08
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.
Table of Contents
Intellectual Property (4)
Trademarks (4)
Patents (4)
Support (4)
1. DMT Standards and Guidelines Summary (6)
2. DMT Standard Codes & IDs Summary (9)
3. DMT Video Timing Parameter Definitions: (12)
3.1 DMT Video Timing Parameter Definitions - Positive H & Positive V Syncs: (12)
3.2 DMT Video Timing Parameter Definitions - Positive H & Negative V Syncs: (12)
3.3 DMT Video Timing Parameter Definitions - Negative H & Negative V Syncs: (12)
3.4 DMT Video Timing Parameter Definitions - Negative H & Positive V Syncs: (13)
3.5 DMT Video Timing Parameter Definitions - Total Frame Timing: (13)
4. DMT Timing Specifications (14)
Timing Specifications for 640x350 at 85 Hz (15)
Timing Specifications for 640x400 at 85 Hz (16)
Timing Specifications for 720x400 at 85 Hz (17)
Timing Specifications for 640x480 at 60, 72, 75 & 85 Hz........................................................................18-21 Timing Specifications for 800x600 at 56, 60, 72, 75 & 85 Hz..................................................................22-26 Timing Specifications for 800x600 at 120 Hz CVT (Reduced Blanking) (27)
Timing Specifications for 848x480 at 60 Hz (28)
Timing Specifications for 1024x768 at 43 (Int.), 60, 70, 75, & 85 Hz......................................................29-33 Timing Specifications for 1024x768 at 120 Hz CVT (Reduced Blanking). (34)
Timing Specifications for 1152x864 at 75 Hz (35)
Timing Specifications for 1280x768 at 60 Hz CVT (Reduced Blanking) (36)
Timing Specifications for 1280x768 at 60, 75& 85 Hz.............................................................................37-39 Timing Specifications for 1280x768 at 120 Hz CVT (Reduced Blanking). (40)
Timing Specifications for 1280x800 at 60 Hz CVT (Reduced Blanking) (41)
Timing Specifications for 1280x800 at 60, 75 & 85 Hz............................................................................42-44 Timing Specifications for 1280x800 at 120 Hz CVT (Reduced Blanking). (45)
Timing Specifications for 1280x960 at 60 & 85 Hz..................................................................................46-47 Timing Specifications for 1280x960 at 120 Hz CVT (Reduced Blanking). (48)
Timing Specifications for 1280x1024 at 60, 75 & 85 Hz..........................................................................49-51 Timing Specifications for 1280x1024 at 120 Hz CVT (Reduced Blanking).. (52)
Timing Specifications for 1360x768 at 60 Hz (53)
Timing Specifications for 1360x768 at 120 Hz CVT (Reduced Blanking) (54)
Timing Specifications for 1366x768 at 60 Hz (55)
Timing Specifications for 1400x1050 at 60 Hz CVT (Reduced Blanking) (56)
Timing Specifications for 1400x1050 at 60, 75 & 85 Hz..........................................................................57-59 Timing Specifications for 1400x1050 at 120 Hz CVT (Reduced Blanking).. (60)
Timing Specifications for 1440x900 at 60 Hz CVT (Reduced Blanking) (61)
Timing Specifications for 1440x900 at 60, 75 & 85 Hz............................................................................62-64 Timing Specifications for 1440x900 at 120 Hz CVT (Reduced Blanking). (65)
Timing Specifications for 1600x1200 at 60, 65, 70, 75, & 85 Hz.............................................................66-70 Timing Specifications for 1600x1200 at 120 Hz (Reduced Blanking).. (71)
Timing Specifications for 1680x1050 at 60 Hz CVT (Reduced Blanking) (72)
Timing Specifications for 1680x1050 at 60, 75 & 85 Hz..........................................................................73-75 Timing Specifications for 1680x1050 at 120 Hz CVT (Reduced Blanking).. (76)
Timing Specifications for 1792x1344 at 60 & 75 Hz................................................................................77-78 Timing Specifications for 1792x1344 at 120 Hz CVT (Reduced Blanking).. (79)
Timing Specifications for 1856x1392 at 60 & 75 Hz................................................................................80-81 Timing Specifications for 1856x1392 at 120 Hz CVT (Reduced Blanking).. (82)
Timing Specifications for 1920x1080 at 60 Hz (83)
Timing Specifications for 1920x1200 at 60 Hz CVT (Reduced Blanking) (84)
Timing Specifications for 1920x1200 at 60, 75 & 85 Hz..........................................................................85-87 Timing Specifications for 1920x1200 at 120 Hz CVT (Reduced Blanking).. (88)
Timing Specifications for 1920x1440 at 60 & 75 Hz................................................................................89-90 Timing Specifications for 1920x1440 at 120 Hz CVT (Reduced Blanking).. (91)
Timing Specifications for 2560x1600 at 60 Hz CVT (Reduced Blanking) (92)
Timing Specifications for 2560x1600 at 60, 75 & 85 Hz..........................................................................93-95 Timing Specifications for 2560x1600 at 120 Hz CVT (Reduced Blanking).. (96)
Tables
Table 1-1: Summary of Display Monitor Timings – Standards and Guidelines (6)
Table 2-1: Summary of DMT ID, STD 2 Byte & CVT 3 Byte Codes (9)
Intellectual Property
? Copyright 1994, 1995, 1996, 1998 – 2008 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.
Trademarks
All trademarks used in this document are property of their respective owners. DMT and VESA are trademarks of the Video Electronics Standards Association.
Patents
VESA draws attention to the fact that it is claimed that compliance with this specification may involve the use of a patent or other intellectual property right (collectively, “IPR”). VESA takes no position concerning the evidence, validity, and scope of this IPR.
Attention is drawn to the possibility that some of the elements of this VESA Specification may be the subject of IPR other than those identified above (Silicon Image). VESA shall not be held responsible for identifying any or all such IPR, and has made no inquiry into the possible existence of any such IPR.
THIS SPECIFICATION IS BEING OFFERED WITHOUT ANY WARRANTY WHATSOEVER, AND IN PARTICULAR, ANY WARRANTY OF NON-INFRINGEMENT IS EXPRESSLY DISCLAIMED. ANY IMPLEMENTATION OF THIS SPECIFICATION SHALL BE MADE ENTIRELY AT THE IMPLEMENTER’S OWN RISK, AND NEITHER VESA, NOR ANY OF ITS MEMBERS OR SUBMITTERS, SHALL HAVE ANY LIABILITY WHATSOEVER TO ANY IMPLEMENTER OR THIRD PARTY FOR ANY DAMAGES OF ANY NATURE WHATSOEVER DIRECTLY OR INDIRECTLY ARISING FROM THE IMPLEMENTATION OF THIS SPECIFICATION.
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@https://www.sodocs.net/doc/465070119.html,
Mail: Video Electronics Standards Association
860 Hillview Ct., Suite 150
Milpitas, CA 95035
Revision History
Version 1.0 Revision 0.0 Sept. 12, 1994 Initial Release of the Standard
Version 1.0 Revision 0.1 Oct. 10, 1994 Fixed sync polarity of 1024x768 @ 60 & 70 Hz. Removed
page numbers so new timings could be added.
Version 1.0 Revision 0.2 Nov. 4, 1994 Added notes & comments to clarify timing of interlaced modes. Version 1.0 Revision 0.3 Feb. 16, 1995 Fixed miscellaneous typos
Version 1.0 Revision 0.4 May 4, 1995 Added EDID IDs for DDC, fixed 1024x768 interlace vertical
times.
Version 1.0 Revision 0.5 June 14, 1995 Added BIOS mode #s, fixed miscellaneous typos
Version 1.0 Revision 0.6 April 10, 1996 Added new modes from VDMTPROP V1.0, R0.6 passed in
stds,
1152x864@75,
1280x960@60).
Hz
March
1996
(85
Version 1.0 Revision 0.6a Sept. 8, 1996 Reformatted to Word 6 for electronic distribution
Version 1.0 Revision 0.7 Dec. 18, 1996 Added new modes from VDMTREV V1.0, R0.8 passed in
70,
75,
65,
85)
1996
Dec.
(1280x1024@60,
1600x1200@60,
Version 1.0 Revision 0.8 July 22, 1998 Added 1792x1344, 1856X1392 & 1920x1440 all @60, 75 Hz.
Hz.
Corrected
for
1600x1200@85
code
EDID
Version 1.0 Revision 0.9 Aug. 21, 2003 Added 848x480@60 Hz, CVT 1280x768 timings,
timings,
&
1400x1050
CVT
1360x768@60
Hz,
CVT
1920x1200 timings based on US & Japan workgroup requests. Version 1.0 Revision 10 July 14, 2004 Added CVT 1.30MA (1440x900) & CVT 1.76MA
formats.
(1680x1050)
Version 1.0 Revision 11 May 1, 2007 Added several DMT CVT Reduced Blanking Timings,
Hz
1280x800@60/75/85
2560x1600@60/75/85
Hz
timings,
and DMT IDs.
Version 1.0 Revision 12 TBD Added timing definitions for 1366x768 @ 60 Hz and
1920x1080 @ 60 Hz. Updated Tables 1 and 2.
1. DMT Standards and Guidelines Summary
Table 1-1 contains a summary of display monitor timings (DMT) that are defined in this standard. All DMTs listed in Table 1-1 are non-interlaced video timing modes - unless otherwise specified using the symbol “(Int.)”. The symbol “(Int.)” means that this DMT is interlaced. All DMTs listed in Table 1-1 include normal video blanking - unless otherwise specified using the symbol “(RB)”. The symbol “(RB)” means that this DMT includes Reduced Blanking. Reduced Blanking timings can only be generated using the Coordinated Video Timing (CVT) Formula. Complete timing specifications for these DMTs are defined in section 7.
Table 1-1: Summary of Display Monitor Timings – Standards and Guidelines
Pixel Format Refresh Rate Horizontal Frequency Pixel Frequency Standard Type Original
Document Date 640 x 350 85 Hz 37.9 kHz 31.500 MHz VESA Standard VDMTPROP 3/1/96 640 x 400 85 Hz 37.9 kHz 31.500 MHz VESA Standard VDMTPROP 3/1/96 720 x 400 85 Hz 37.9 kHz 35.500 MHz VESA Standard VDMTPROP 3/1/96 60 Hz
31.5 kHz 25.175 MHz Industry Standard n/a n/a 72 Hz 37.9 kHz 31.500 MHz VESA Standard VS901101 12/2/92 75 Hz 37.5 kHz 31.500 MHz VESA Standard VDMT75HZ 10/4/93 640 x 480
85 Hz 43.3 kHz 36.000 MHz VESA Standard VDMTPROP 3/1/96 56 Hz 35.2 kHz 36.000 MHz VESA Guidelines VG900601 8/6/90 60 Hz 37.9 kHz 40.000 MHz VESA Guidelines VG900602 8/6/90 72 Hz 48.1 kHz 50.000 MHz VESA Standard VS900603A 8/6/90 75 Hz 46.9 kHz 49.500 MHz VESA Standard VDMT75HZ 10/4/93 85 Hz 53.7 kHz 56.250 MHz VESA Standard VDMTPROP
3/1/96 800 x 600
120 Hz (RB) 76.3 kHz 73.250 MHz CVT Red. Blanking n/a 5/1/07 848 x 480 60 Hz 31.0 kHz 33.750 MHz VESA Standard AddDMT 3/4/03 43 Hz (Int.) 35.5 kHz 44.900 MHz Industry Standard n/a n/a 60 Hz 48.4 kHz 65.000 MHz VESA Guidelines VG901101A 9/10/91 70 Hz 56.5 kHz 75.000 MHz VESA Standard VS910801-2 8/9/91 75 Hz 60.0 kHz 78.750 MHz VESA Standard VDMT75HZ 10/4/93 85 Hz 68.7 kHz 94.500 MHz VESA Standard VDMTPROP
3/1/96 1024 x 768
120 Hz (RB) 97.6 kHz 115.500 MHz CVT Red. Blanking n/a 5/1/07 1152 x 864 75 Hz 67.5 kHz 108.000 MHz VESA Standard VDMTPROP 3/1/96 60 Hz(RB) 47.4 kHz 68.250 MHz CVT Red. Blanking
AddDMT 3/4/03 60 Hz 47.8 kHz 79.500 MHz CVT AddDMT 3/4/03 75 Hz 60.3 kHz 102.250 MHz CVT AddDMT 3/4/03 85 Hz 68.6 kHz 117.500 MHz CVT
AddDMT 3/4/03 1280 x 768
120 Hz (RB) 97.4 kHz 140.250 MHz CVT Red. Blanking n/a 5/1/07 60 Hz(RB) 49.3 kHz 71.000 MHz CVT Red. Blanking
CVT1.02MA-R 5/1/07 60 Hz 49.7 kHz 83.500 MHz CVT CVT 1.02MA 5/1/07 75 Hz 62.8 kHz 106.500 MHz CVT CVT 1.02MA 5/1/07 85 Hz 71.6 kHz 122.500 MHz CVT
CVT 1.02MA
5/1/07 1280 x 800
120 Hz (RB) 101.6 kHz 146.250 MHz CVT Red. Blanking n/a 5/1/07 60 Hz 60.0 kHz 108.000 MHz VESA Standard VDMTPROP 3/1/96 85 Hz 85.9 kHz 148.500 MHz VESA Standard VDMTPROP
3/1/96 1280 x 960
120 Hz (RB)
121.9 kHz
175.500 MHz
CVT Red. Blanking
n/a
5/1/07
1280 x 1024
60 Hz 64.0 kHz 108.000 MHz VESA Standard VDMTREV 12/18/96
75 Hz 80.0 kHz 135.000 MHz VESA Standard VDMT75HZ 10/4/93
85 Hz 91.1 kHz 157.500 MHz VESA Standard VDMTPROP 3/1/96
120 Hz (RB) 130.0 kHz 187.250 MHz CVT Red. Blanking n/a 5/1/07 1360 x 768
60 Hz 47.7 kHz 85.500 MHz VESA Standard AddDMT 3/4/03
120 Hz (RB) 97.5 kHz 148.250 MHz CVT Red. Blanking n/a 5/1/07 1366 x 768 60 Hz 47.7 kHz 85.500 MHz VESA Standard DMT Update TBD 1400 x 1050
60 Hz(RB) 64.7 kHz 101.000 MHz CVT Red. Blanking AddDMT 5/13/03
60 Hz 65.3 kHz 121.750 MHz CVT AddDMT 3/4/03
75 Hz 82.3 kHz 156.000 MHz CVT AddDMT 3/4/03
85 Hz 93.9 kHz 179.500 MHz CVT AddDMT 3/4/03
120 Hz (RB) 133.3 kHz 208.000 MHz CVT Red. Blanking n/a 5/1/07 1440 x 900
60 Hz(RB) 55.5 kHz 88.750 MHz CVT Red. Blanking CVT1.30MA-R 7/14/04
60 Hz 55.9 kHz 106.500 MHz CVT CVT 1.30MA 7/14/04
75 Hz 70.6 kHz 136.750 MHz CVT CVT 1.30MA 7/14/04
85 Hz 80.4 kHz 157.000 MHz CVT CVT 1.30MA 7/14/04
120 Hz (RB) 114.2 kHz 182.750 MHz CVT Red. Blanking n/a 5/1/07 1600 x 1200
60 Hz 75.0 kHz 162.000 MHz VESA Standard VDMTREV 12/18/96
65 Hz 81.3 kHz 175.500 MHz VESA Standard VDMTREV 12/18/96
70 Hz 87.5 kHz 189.000 MHz VESA Standard VDMTREV 12/18/96
75 Hz 93.8 kHz 202.500 MHz VESA Standard VDMTREV 12/18/96
85 Hz 106.3 kHz 229.500 MHz VESA Standard VDMTREV 12/18/96
120 Hz (RB) 152.4 kHz 268.250 MHz CVT Red. Blanking n/a 5/1/07 1680 x 1050
60 Hz(RB) 64.7 kHz 119.000 MHz CVT Red. Blanking CVT1.76MA-R 7/14/04
60 Hz 65.3 kHz 146.250 MHz CVT CVT 1.76MA 7/14/04
75 Hz 82.3 kHz 187.000 MHz CVT CVT 1.76MA 7/14/04
85 Hz 93.9 kHz 214.750 MHz CVT CVT 1.76MA 7/14/04
120 Hz (RB) 133.4 kHz 245.500 MHz CVT Red. Blanking n/a 5/1/07
60 Hz 83.6 kHz 204.750 MHz VESA Standard VDMTREV 9/17/98 1792 x 1344
75 Hz 106.3 kHz 261.000 MHz VESA Standard VDMTREV 9/17/98
120 Hz (RB) 170.7 kHz 333.250 MHz CVT Red. Blanking n/a 5/1/07
60 Hz 86.3 kHz 218.250 MHz VESA Standard VDMTREV 9/17/98 1856 x 1392
75 Hz 112.5 kHz 288.000 MHz VESA Standard VDMTREV 9/17/98
120 Hz (RB) 176.8 kHz 356.500 MHz CVT Red. Blanking n/a 5/1/07 1920 x 1080 60 Hz 67.5 kHz 148.500 MHz CEA Standard CEA-861 TBD 1920 x 1200
60 Hz(RB) 74.0 kHz 154.000 MHz CVT Red. Blanking AddDMT 3/4/03
60 Hz 74.6 kHz 193.250 MHz CVT AddDMT 3/4/03
75 Hz 94.0 kHz 245.250 MHz CVT AddDMT 3/4/03
85 Hz 107.2 kHz 281.250 MHz CVT AddDMT 3/4/03
120 Hz (RB) 152.4 kHz 317.000 MHz CVT Red. Blanking n/a 5/1/07 1920 x 1440
60 Hz 90.0 kHz 234.000 MHz VESA Standard VDMTREV 9/17/98
75 Hz 112.5 kHz 297.000 MHz VESA Standard VDMTREV 9/17/98
120 Hz (RB) 182.9 kHz 380.500 MHz CVT Red. Blanking n/a 5/1/07
2560 x 1600
60 Hz (RB) 98.7 kHz 268.500 MHz CVT Red. Blanking CVT4.10MA-R 5/1/07
60 Hz 99.5 kHz 348.500 MHz CVT CVT 4.10MA 5/1/07
75 Hz 125.4 kHz 443.250 MHz CVT CVT 4.10MA 5/1/07
85 Hz 142.9 kHz 505.250 MHz CVT CVT 4.10MA 5/1/07
120 Hz (RB) 203.2 kHz 552.750 MHz CVT Red. Blanking n/a 5/1/07
2. DMT Standard Codes & IDs Summary
Table 2-1 includes a list of Display Monitor Timing Identification (DMT ID) codes, Standard (STD) Timing 2 byte codes and Coordinated Video Timing (CVT) 3 byte codes. A display may use these codes to indicated support for the associated DMT. Refer to the latest version of VESA’s Enhanced Extended Display Identification (E-EDID) Standard for an explanation of how to derive the STD 2 byte codes and the CVT 3 byte codes. The letters “n/a” (not applicable) indicates that a STD 2 byte code and/or a CVT 3 byte code (DMT is not CVT compliant) cannot be created.
Table 2-1: Summary of DMT ID, STD 2 Byte & CVT 3 Byte Codes
Pixel
Format Refresh Rate DMT ID
Codes
STD
2 Byte Codes
CVT
3 Byte Codes
640 x 350 85 Hz 01h n/a n/a 640 x 400 85 Hz 02h (31, 19)h n/a 720 x 400 85 Hz 03h n/a n/a
60 Hz 04h (31, 40)h n/a
72 Hz 05h (31, 4C)h n/a
75 Hz 06h (31, 4F)h n/a 640 x 480
85 Hz 07h (31, 59)h n/a
56 Hz 08h n/a n/a
60 Hz 09h (45, 40)h n/a
72 Hz 0Ah (45, 4C)h n/a
75 Hz 0Bh (45, 4F)h n/a
85 Hz 0Ch (45, 59)h n/a 800 x 600
120 Hz (RB) 0Dh n/a n/a 848 x 480 60 Hz 0Eh n/a n/a
43 Hz (Int.) 0Fh n/a n/a
60 Hz 10h (61, 40)h n/a
70 Hz 11h (61, 4A)h n/a
75 Hz 12h (61, 4F)h n/a
85 Hz 13h (61, 59)h n/a 1024 x 768
120 Hz (RB) 14h n/a n/a 1152 x 864 75 Hz 15h (71, 4F)h n/a
60 Hz(RB) 16h n/a (7F, 1C, 21)h
60 Hz 17h n/a (7F, 1C, 28)h
75 Hz 18h n/a (7F, 1C, 44)h
85 Hz 19h n/a (7F, 1C, 62)h 1280 x 768
120 Hz (RB) 1Ah n/a n/a
60 Hz (RB) 1Bh n/a (8F, 18, 21)h
60 Hz 1Ch (81, 00)h (8F, 18, 28)h
75 Hz 1Dh (81, 0F)h (8F, 18, 44)h
85 Hz 1Eh (81, 19)h (8F, 18, 62)h 1280 x 800
120 Hz (RB) 1Fh n/a n/a
60 Hz 20h (81, 40)h n/a
85 Hz 21h (81, 59)h n/a 1280 x 960
120 Hz (RB) 22h n/a n/a
1280 x 1024
60 Hz 23h (81, 80)h n/a
75 Hz 24h (81, 8F)h n/a
85 Hz 25h (81, 99)h n/a
120 Hz (RB) 26h n/a n/a 1360 x 768
60 Hz 27h n/a n/a
120 Hz (RB) 28h n/a n/a 1366 x 768 60 Hz 51h n/a n/a 1400 x 1050
60 Hz(RB) 29h n/a (0C, 20, 21)h
60 Hz 2Ah (90, 40)h (0C, 20, 28)h
75 Hz 2Bh (90, 4F)h (0C, 20, 44)h
85 Hz 2Ch (90, 59)h (0C, 20, 62)h
120 Hz (RB) 2Dh n/a n/a 1440 x 900
60 Hz(RB) 2Eh n/a (C1, 18, 21)h
60 Hz 2Fh (95, 00)h (C1, 18, 28)h
75 Hz 30h (95, 0F)h (C1, 18, 44)h
85 Hz 31h (95, 19)h (C1, 18, 68)h
120 Hz (RB) 32h n/a n/a 1600 x 1200
60 Hz 33h (A9, 40)h n/a
65 Hz 34h (A9, 45)h n/a
70 Hz 35h (A9, 4A)h n/a
75 Hz 36h (A9, 4F)h n/a
85 Hz 37h (A9, 59)h n/a
120 Hz (RB) 38h n/a n/a 1680 x 1050
60 Hz(RB) 39h n/a (0C, 28, 21)h
60 Hz 3Ah (B3, 00)h (0C, 28, 28)h
75 Hz 3Bh (B3, 0F)h (0C, 28, 44)h
85 Hz 3Ch (B3, 19)h (0C, 28, 68)h
120 Hz (RB) 3Dh n/a n/a
60 Hz 3Eh (C1, 40)h n/a 1792 x 1344
75 Hz 3Fh (C1, 4F)h n/a
120 Hz (RB) 40h n/a n/a
60 Hz 41h (C9, 40)h n/a 1856 x 1392
75 Hz 42h (C9, 4F)h n/a
120 Hz (RB) 43h n/a n/a 1920 x 1080 60 Hz 52h (D1, C0)h n/a 1920 x 1200
60 Hz(RB) 44h n/a (57, 28, 21)h
60 Hz 45h (D1, 00)h (57, 28, 28)h
75 Hz 46h (D1, 0F)h (57, 28, 44)h
85 Hz 47h (D1, 19)h (57, 28, 62)h
120 Hz (RB) 48h n/a n/a 1920 x 1440
60 Hz 49h (D1, 40)h n/a
75 Hz 4Ah (D1, 4F)h n/a
120 Hz (RB) 4Bh n/a n/a
2560 x 1600
60 Hz (RB) 4Ch n/a (1F, 38, 21)h
60 Hz 4Dh n/a (1F, 38, 28)h
75 Hz 4Eh n/a (1F, 38, 44)h
85 Hz 4Fh n/a (1F, 38, 62)h
120 Hz (RB) 50h n/a n/a
Notes for Table 2-1:
1.The CVT 3 Byte Codes listed in Table 2-1 are unique and are assigned to one video timing mode
that was generated using the CVT Formulas. A source may decode the CVT 3 Byte Code and
determine the number of vertical lines, the aspect ratio, the number of horizontal pixels (calculated), the preferred vertical refresh rate, a single supported refresh rate and the blanking style.
For example, a source can decode the CVT 3 Byte Code, (7F, 1C, 44)h, with the following
results: the number of vertical lines is 768, the aspect ratio is 15 : 9 AR, the number of
horizontal pixels (calculated) is 1280, the preferred vertical refresh rate is 75 Hz, the supported
vertical refresh rate is 75 Hz and the blanking style is standard (CRT style). Refer to VESA’s E-
EDID Standard (Release A, Revision 2) for an explanation on how to derive a CVT 3 Byte
Code from the video timing mode parameters.
2. A display (receiver) manufacturer may use the CVT 3 Byte Code to indicate support for a fixed
pixel format and one or more vertical refresh rates.
For example, a display may contain a CVT 3 Byte Code which indicates support for 1280 x 768
and support for 50 Hz, 60 Hz, 75 Hz & 85 Hz vertical refresh rates with 60 Hz being the
preferred vertical refresh rate. In this case the CVT 3 Byte code would be (7F, 1C, 3E)h. When
the source decodes the CVT 3 Byte code, (7F, 1C, 3E)h, it knows that the display supports 1280
x 768, along with 50 Hz, 60 Hz, 75 Hz & 85 Hz vertical refresh rates with 60 Hz being the
preferred vertical refresh rate. The source should output 1280 x 768 at 60 Hz (standard CRT
style blanking). The source also knows that the 60 Hz (reduced blanking) is not supported in the
display. Refer to VESA E-EDID Standard (Release A, Revision 2) for an explanation on how to
derive a CVT 3 Byte Code from the video timing mode parameters.
3. DMT Video Timing Parameter Definitions:
Section 3 includes a list of drawings that define the video timing parameters for all DMTs defined in this standard. There are four drawings based on the possible combinations of positive and negative horizontal and vertical syncs.
3.1 DMT Video Timing Parameter Definitions - Positive H & Positive V Syncs:
VSync
3.2 DMT Video Timing Parameter Definitions - Positive H & Negative V Syncs:
VSync
3.3 DMT Video Timing Parameter Definitions - Negative H & Negative V Syncs:
HSync VSync
3.4 DMT Video Timing Parameter Definitions - Negative H & Positive V Syncs:
VSync
3.5 DMT Video Timing Parameter Definitions - Total Frame Timing:
4. DMT Timing Specifications
Section 4 includes a list of detailed timing parameters for all DMTs defined in this standard.
EDID ID: DMT ID: 01h; STD 2 Byte Code: n/a; CVT 3 Byte Code: n/a Method: *** NOT CVT COMPLIANT ***
Detailed Timing Parameters
Timing Name=640 x 350 @ 85Hz;
Hor Pixels=640;// Pixels
Ver Pixels=350;// Lines
Hor Frequency=37.861;// kHz=26.4usec/line
Ver Frequency=85.080;// Hz=11.8msec/frame
Pixel Clock=31.500;// MHz=31.7nsec± 0.5%
Character Width=8;// Pixels=254.0nsec
Scan Type=NONINTERLACED;// H Phase= 3.8%
Hor Sync Polarity=POSITIVE;// HBlank=23.1%of HTotal
Ver Sync Polarity=NEGATIVE;// VBlank=21.3%of VTotal
Hor Total Time=26.413;// (usec)=104chars=832Pixels
Hor Addr Time=20.317;// (usec)=80chars=640Pixels
Hor Blank Start=20.317;// (usec)=80chars=640Pixels
Hor Blank Time=6.095;// (usec)=24chars=192Pixels
Hor Sync Start=21.333;// (usec)=84chars=672Pixels
// H Right Border=0.000;// (usec)=0chars=0Pixels
// H Front Porch=1.016;// (usec)=4chars=32Pixels
Hor Sync Time=2.032;// (usec)=8chars=64Pixels
// H Back Porch=3.048;// (usec)=12chars=96Pixels
// H Left Border=0.000;// (usec)=0chars=0Pixels
Ver Total Time=11.754;// (msec)=445lines HT – (1.06xHA)
Ver Addr Time=9.244;// (msec)=350lines=4.88
Ver Blank Start=9.244;// (msec)=350lines
Ver Blank Time=2.509;// (msec)=95lines
Ver Sync Start=10.090;// (msec)=382lines
// V Bottom Border=0.000;// (msec)=0lines
// V Front Porch=0.845;// (msec)=32lines
Ver Sync Time=0.079;// (msec)=3lines
// V Back Porch=1.585;// (msec)=60lines
// V Top Border=0.000;// (msec)=0lines
Definition of Terms: Refer to section 3.2.
EDID ID: DMT ID: 02h; STD 2 Byte Code: (31, 19)h; CVT 3 Byte Code: n/a Method: *** NOT CVT COMPLIANT ***
Detailed Timing Parameters
Timing Name=640 x 400 @ 85Hz;
Hor Pixels=640;// Pixels
Ver Pixels=400;// Lines
Hor Frequency=37.861;// kHz=26.4usec/line
Ver Frequency=85.080;// Hz=11.8msec/frame
Pixel Clock=31.500;// MHz=31.7nsec± 0.5%
Character Width=8;// Pixels=254.0nsec
Scan Type=NONINTERLACED;// H Phase= 3.8%
Hor Sync Polarity=NEGATIVE;// HBlank=23.1%of HTotal
Ver Sync Polarity=POSITIVE;// VBlank=10.1%of VTotal
Hor Total Time=26.413;// (usec)=104chars=832Pixels
Hor Addr Time=20.317;// (usec)=80chars=640Pixels
Hor Blank Start=20.317;// (usec)=80chars=640Pixels
Hor Blank Time=6.095;// (usec)=24chars=192Pixels
Hor Sync Start=21.333;// (usec)=84chars=672Pixels
// H Right Border=0.000;// (usec)=0chars=0Pixels
// H Front Porch=1.016;// (usec)=4chars=32Pixels
Hor Sync Time=2.032;// (usec)=8chars=64Pixels
// H Back Porch=3.048;// (usec)=12chars=96Pixels
// H Left Border=0.000;// (usec)=0chars=0Pixels
Ver Total Time=11.754;// (msec)=445lines HT – (1.06xHA)
Ver Addr Time=10.565;// (msec)=400lines=4.88
Ver Blank Start=10.565;// (msec)=400lines
Ver Blank Time=1.189;// (msec)=45lines
Ver Sync Start=10.591;// (msec)=401lines
// V Bottom Border=0.000;// (msec)=0lines
// V Front Porch=0.026;// (msec)=1lines
Ver Sync Time=0.079;// (msec)=3lines
// V Back Porch=1.083;// (msec)=41lines
// V Top Border=0.000;// (msec)=0lines
Definition of Terms: Refer to section 3.4.
EDID ID: DMT ID: 03h; STD 2 Byte Code: n/a; CVT 3 Byte Code: n/a Method: *** NOT CVT COMPLIANT ***
Detailed Timing Parameters
Timing Name=720 x 400 @ 85Hz;
Hor Pixels=720;// Pixels
Ver Pixels=400;// Lines
Hor Frequency=37.927;// kHz=26.4usec/line
Ver Frequency=85.039;// Hz=11.8msec/frame
Pixel Clock=35.500;// MHz=28.2nsec± 0.5%
Character Width=9;// Pixels=253.5nsec
Scan Type=NONINTERLACED;// H Phase= 3.8%
Hor Sync Polarity=NEGATIVE;// HBlank=23.1%of HTotal
Ver Sync Polarity=POSITIVE;// VBlank=10.3%of VTotal
Hor Total Time=26.366;// (usec)=104chars=936Pixels
Hor Addr Time=20.282;// (usec)=80chars=720Pixels
Hor Blank Start=20.282;// (usec)=80chars=720Pixels
Hor Blank Time=6.085;// (usec)=24chars=216Pixels
Hor Sync Start=21.296;// (usec)=84chars=756Pixels
// H Right Border=0.000;// (usec)=0chars=0Pixels
// H Front Porch=1.014;// (usec)=4chars=36Pixels
Hor Sync Time=2.028;// (usec)=8chars=72Pixels
// H Back Porch=3.042;// (usec)=12chars=108Pixels
// H Left Border=0.000;// (usec)=0chars=0Pixels
Ver Total Time=11.759;// (msec)=446lines HT – (1.06xHA)
Ver Addr Time=10.546;// (msec)=400lines=4.87
Ver Blank Start=10.546;// (msec)=400lines
Ver Blank Time=1.213;// (msec)=46lines
Ver Sync Start=10.573;// (msec)=401lines
// V Bottom Border=0.000;// (msec)=0lines
// V Front Porch=0.026;// (msec)=1lines
Ver Sync Time=0.079;// (msec)=3lines
// V Back Porch=1.107;// (msec)=42lines
// V Top Border=0.000;// (msec)=0lines
Definition of Terms: Refer to section 3.4.
Adopted: n/a ** For Reference Only - Not a VESA Standard **
Resolution: 640 x 480 at 60 Hz (non-interlaced)
EDID ID: DMT ID: 04h; STD 2 Byte Code: (31, 40)h; CVT 3 Byte Code: n/a BIOS Modes: 11h, 12h, 101h, 110h, 111h, & 112h (1, 4, 8, 15, 16, & 24 bpp) Method: *** NOT CVT COMPLIANT ***
Detailed Timing Parameters
Timing Name=640 x 480 @ 60Hz;
Hor Pixels=640;// Pixels
Ver Pixels=480;// Lines
Hor Frequency=31.469;// kHz=31.8usec/line
Ver Frequency=59.940;// Hz=16.7msec/frame
Pixel Clock=25.175;// MHz=39.7nsec± 0.5%
Character Width=8;// Pixels=317.8nsec
Scan Type=NONINTERLACED;// H Phase= 2.0%
Hor Sync Polarity=NEGATIVE;// HBlank=18.0%of HTotal
Ver Sync Polarity=NEGATIVE;// VBlank= 5.5%of VTotal
Hor Total Time=31.778;// (usec)=100chars=800Pixels
Hor Addr Time=25.422;// (usec)=80chars=640Pixels
Hor Blank Start=25.740;// (usec)=81chars=648Pixels
Hor Blank Time=5.720;// (usec)=18chars=144Pixels
Hor Sync Start=26.058;// (usec)=82chars=656Pixels
// H Right Border=0.318;// (usec)=1chars=8Pixels
// H Front Porch=0.318;// (usec)=1chars=8Pixels
Hor Sync Time=3.813;// (usec)=12chars=96Pixels
// H Back Porch=1.589;// (usec)=5chars=40Pixels
// H Left Border=0.318;// (usec)=1chars=8Pixels
Ver Total Time=16.683;// (msec)=525lines HT – (1.06xHA)
Ver Addr Time=15.253;// (msec)=480lines=4.83
Ver Blank Start=15.507;// (msec)=488lines
Ver Blank Time=0.922;// (msec)=29lines
Ver Sync Start=15.571;// (msec)=490lines
// V Bottom Border=0.254;// (msec)=8lines
// V Front Porch=0.064;// (msec)=2lines
Ver Sync Time=0.064;// (msec)=2lines
// V Back Porch=0.794;// (msec)=25lines
// V Top Border=0.254;// (msec)=8lines
Definition of Terms: Refer to section 3.3.
Adopted: 11/11/90 (VESA #901101)
Resolution: 640 x 480 at 72 Hz (non-interlaced)
EDID ID: DMT ID: 05h; STD 2 Byte Code: (31, 4C)h; CVT 3 Byte Code: n/a BIOS Modes: 11h, 12h, 101h, 110h, 111h, & 112h (1, 4, 8, 15, 16, & 24 bpp) Method: *** NOT CVT COMPLIANT ***
Detailed Timing Parameters
Timing Name=640 x 480 @ 72Hz;
Hor Pixels=640;// Pixels
Ver Pixels=480;// Lines
Hor Frequency=37.861;// kHz=26.4usec/line
Ver Frequency=72.809;// Hz=13.7msec/frame
Pixel Clock=31.500;// MHz=31.7nsec± 0.5%
Character Width=8;// Pixels=254.0nsec
Scan Type=NONINTERLACED;// H Phase= 6.3%
Hor Sync Polarity=NEGATIVE;// HBlank=21.2%of HTotal
Ver Sync Polarity=NEGATIVE;// VBlank= 4.6%of VTotal
Hor Total Time=26.413;// (usec)=104chars=832Pixels
Hor Addr Time=20.317;// (usec)=80chars=640Pixels
Hor Blank Start=20.571;// (usec)=81chars=648Pixels
Hor Blank Time=5.587;// (usec)=22chars=176Pixels
Hor Sync Start=21.079;// (usec)=83chars=664Pixels
// H Right Border=0.254;// (usec)=1chars=8Pixels
// H Front Porch=0.508;// (usec)=2chars=16Pixels
Hor Sync Time=1.270;// (usec)=5chars=40Pixels
// H Back Porch=3.810;// (usec)=15chars=120Pixels
// H Left Border=0.254;// (usec)=1chars=8Pixels
Ver Total Time=13.735;// (msec)=520lines HT – (1.06xHA)
Ver Addr Time=12.678;// (msec)=480lines=4.88
Ver Blank Start=12.889;// (msec)=488lines
Ver Blank Time=0.634;// (msec)=24lines
Ver Sync Start=12.916;// (msec)=489lines
// V Bottom Border=0.211;// (msec)=8lines
// V Front Porch=0.026;// (msec)=1lines
Ver Sync Time=0.079;// (msec)=3lines
// V Back Porch=0.528;// (msec)=20lines
// V Top Border=0.211;// (msec)=8lines
Definition of Terms: Refer to section 3.3.
EDID ID: DMT ID: 06h; STD 2 Byte Code: (31, 4F)h; CVT 3 Byte Code: n/a BIOS Modes: 11h, 12h, 101h, 110h, 111h, & 112h (1, 4, 8, 15, 16, & 24 bpp) Method: *** NOT CVT COMPLIANT ***
Detailed Timing Parameters
Timing Name=640 x 480 @ 75Hz;
Hor Pixels=640;// Pixels
Ver Pixels=480;// Lines
Hor Frequency=37.500;// kHz=26.7usec/line
Ver Frequency=75.000;// Hz=13.3msec/frame
Pixel Clock=31.500;// MHz=31.7nsec± 0.5%
Character Width=8;// Pixels=254.0nsec
Scan Type=NONINTERLACED;// H Phase= 6.2%
Hor Sync Polarity=NEGATIVE;// HBlank=23.8%of HTotal
Ver Sync Polarity=NEGATIVE;// VBlank= 4.0%of VTotal
Hor Total Time=26.667;// (usec)=105chars=840Pixels
Hor Addr Time=20.317;// (usec)=80chars=640Pixels
Hor Blank Start=20.317;// (usec)=80chars=640Pixels
Hor Blank Time=6.349;// (usec)=25chars=200Pixels
Hor Sync Start=20.825;// (usec)=82chars=656Pixels
// H Right Border=0.000;// (usec)=0chars=0Pixels
// H Front Porch=0.508;// (usec)=2chars=16Pixels
Hor Sync Time=2.032;// (usec)=8chars=64Pixels
// H Back Porch=3.810;// (usec)=15chars=120Pixels
// H Left Border=0.000;// (usec)=0chars=0Pixels
Ver Total Time=13.333;// (msec)=500lines HT – (1.06xHA)
Ver Addr Time=12.800;// (msec)=480lines=5.13
Ver Blank Start=12.800;// (msec)=480lines
Ver Blank Time=0.533;// (msec)=20lines
Ver Sync Start=12.827;// (msec)=481lines
// V Bottom Border=0.000;// (msec)=0lines
// V Front Porch=0.027;// (msec)=1lines
Ver Sync Time=0.080;// (msec)=3lines
// V Back Porch=0.427;// (msec)=16lines
// V Top Border=0.000;// (msec)=0lines
Definition of Terms: Refer to section 3.3.