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MAA

Monitor incorrect info

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9 minutes ago, MAA said:

Hello,

I have monitor BenQ GW2270HM

As you can see in datasheet, Video Bandwidth = 205 MHz

https://www.benq.eu/en-ee/support/downloads-faq/manuals/datasheet/monitor-datasheet-086.html

and now i'm using mode 1920*1080@70Hz

 

But, AIDA show incorrect info:

Maximum Pixel Clock 170 MHz

1920 x 1080 Pixel Clock: 148.50 MHz

 

Image1_mon.png

That's what the monitor reports as its capabilities via the standard VESA EDID block.  You can verify that information by checking the EDID details using other diagnostics software.

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I used DumpEDID, but i do not see "Maximum Pixel Clock" or "Video Bandwidth" info.

How do you get this information (170 MHz)?

 

D:\Distr\nirsoft\dumpedid>DumpEDID.exe -a
DumpEDID v1.07
Copyright (c) 2006 - 2018 Nir Sofer
Web site: http://www.nirsoft.net

*****************************************************************
Active                   : Yes
Registry Key             : DISPLAY\BNQ78DB\4&1a6469cc&1&UID52830976
Monitor Name             : BenQ GW2270
Serial Number            : A9J02231019
Manufacture Week         : 37 / 2018
ManufacturerID           : 53513 (0xD109)
ProductID                : 30939 (0x78DB)
Serial Number (Numeric)  : 21573 (0x00005445)
EDID Version             : 1.3
Display Gamma            : 2.20
Vertical Frequency       : 50 - 76 Hz
Horizontal Frequency     : 30 - 83 KHz
Maximum Image Size       : 48 X 27 cm (21.7 Inch)
Maximum Resolution       : 1920 X 1080
Support Standby Mode     : No
Support Suspend Mode     : No
Support Low-Power Mode   : Yes
Support Default GTF      : No
Digital                  : Yes

Supported Display Modes  :
     720 X  400  70 Hz
     640 X  480  60 Hz
     640 X  480  75 Hz
     800 X  600  60 Hz
     800 X  600  75 Hz
     832 X  624  75 Hz
    1024 X  768  60 Hz
    1024 X  768  75 Hz
    1280 X  720  60 Hz
    1280 X  800  60 Hz
    1280 X 1024  60 Hz
    1280 X 1024  75 Hz
    1600 X  900  60 Hz
    1680 X 1050  60 Hz
    1920 X 1080  60 Hz

*****************************************************************

D:\Distr\nirsoft\dumpedid>

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10 minutes ago, MAA said:

I used DumpEDID, but i do not see "Maximum Pixel Clock" or "Video Bandwidth" info.

How do you get this information (170 MHz)?

 

D:\Distr\nirsoft\dumpedid>DumpEDID.exe -a
DumpEDID v1.07
Copyright (c) 2006 - 2018 Nir Sofer
Web site: http://www.nirsoft.net

*****************************************************************
Active                   : Yes
Registry Key             : DISPLAY\BNQ78DB\4&1a6469cc&1&UID52830976
Monitor Name             : BenQ GW2270
Serial Number            : A9J02231019
Manufacture Week         : 37 / 2018
ManufacturerID           : 53513 (0xD109)
ProductID                : 30939 (0x78DB)
Serial Number (Numeric)  : 21573 (0x00005445)
EDID Version             : 1.3
Display Gamma            : 2.20
Vertical Frequency       : 50 - 76 Hz
Horizontal Frequency     : 30 - 83 KHz
Maximum Image Size       : 48 X 27 cm (21.7 Inch)
Maximum Resolution       : 1920 X 1080
Support Standby Mode     : No
Support Suspend Mode     : No
Support Low-Power Mode   : Yes
Support Default GTF      : No
Digital                  : Yes

Supported Display Modes  :
     720 X  400  70 Hz
     640 X  480  60 Hz
     640 X  480  75 Hz
     800 X  600  60 Hz
     800 X  600  75 Hz
     832 X  624  75 Hz
    1024 X  768  60 Hz
    1024 X  768  75 Hz
    1280 X  720  60 Hz
    1280 X  800  60 Hz
    1280 X 1024  60 Hz
    1280 X 1024  75 Hz
    1600 X  900  60 Hz
    1680 X 1050  60 Hz
    1920 X 1080  60 Hz

*****************************************************************

D:\Distr\nirsoft\dumpedid>

It comes from the "Display Range Limits & Additional Timing Descriptor Definition (tag #FDh)", as dictated by the "VESA ENHANCED EXTENDED DISPLAY IDENTIFICATION DATA STANDARD (Defines EDID Structure Version 1, Revision 4)" document.

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2 hours ago, MAA said:

DumpEDID shows not complete information?

What simple utilities can show full info?

Apparently not.

I don't know tools that would show detailed EDID information.  There must be some, but I never tried to find them.

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