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Displays Nvidia Control Panel Displays Incorrect Resolution

Discussion in 'Tech Support' started by herman_blume, 15 Aug 2012.

  1. herman_blume

    herman_blume What's a Dremel?

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    Hi guys,

    I was wondering if you could help.

    I installed a new Samsung 27a750d monitor today, but for some reason Nvidia Control Panel will only display 1024 x 768 as it's native resolution. It doesn't list the model name either and just says 'Digital Display'. When I look in device manager however, the monitor is listed correctly.

    I've tried reinstalling the monitor and display drivers to no avail. I have also tried another DVI cable and using a different DVI input. I am rather confused.
    For the record I was using the GFX card with another monitor previously and didn't have any problems.

    Does it sound like a faulty monitor - controller chip problem perhaps?

    Any help at all would be great.

    :)
     
  2. GoodBytes

    GoodBytes How many wifi's does it have?

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    That's nice, but monitors don't have drivers. So I don't know what you installed. :)
    Also I only see 1x DVI input on your monitor... oh you mean graphic card.

    Anyway,
    On the Nvidia control panel, you can create a custom resolution. Make it to your monitor specification, so in your case: 1920x1080 @ 60Hz, and another one 1920x1080 @ 120Hz.

    If that does not work, then try: 1920x1080 @ 59.997Hz, and also try 1920x1080 @ 60.001Hz.

    If that still doesn't work, try using DisplayPort, maybe your DVI on the monitor is broken or doesn't support 120Hz at 1920x1080, and only works via DisplayPort or HDMI. I doubt it, but it could be that.
     
    Last edited: 16 Aug 2012
  3. faugusztin

    faugusztin I *am* the guy with two left hands

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    If you see only 1024x768, then the answer is simple - the graphics card doesn't receive EDID information from the display, or gets a incorrect EDID information. With non-NVIDIA card, all you would probably see is a big blackness (incorrect EDID equals no display for Intel and ATI).

    Faulty cable, faulty connector on either side (graphics card or display), faulty EDID chip in the monitor - any of these can result in incorrect EDID information.

    If you can find the EDID information for your monitor somewhere, you can also make a EDID override INF file.

    Code:
    [Version]
    signature="$WINDOWS NT$"
    Class=Monitor
    ClassGuid={4D36E96E-E325-11CE-BFC1-08002BE10318}
    Provider="MS_EDID_OVERRIDE"
    DriverVer=04/20/2008, 1.1.0.0
    
    [DestinationDirs]
    DefaultDestDir=23
    
    [Manufacturer]
    %MS_EDID_OVERRIDE%=MS_EDID_OVERRIDE,NTx86,NTamd64
    
    [MS_EDID_OVERRIDE.NTx86]
    %MS_EDID_OVERRIDE-1%=MS_EDID_OVERRIDE-1.Install, MONITOR
    
    [MS_EDID_OVERRIDE.NTamd64]
    %MS_EDID_OVERRIDE-1%=MS_EDID_OVERRIDE-1.Install.NTamd64, MONITOR
    
    [MS_EDID_OVERRIDE-1.Install.NTx86]
    DelReg=DEL_CURRENT_REG
    AddReg=MS_EDID_OVERRIDE-1.AddReg, 1920, DPMS
    CopyFiles=MS_EDID_OVERRIDE-1.CopyFiles
    
    [MS_EDID_OVERRIDE-1.Install.NTamd64]
    DelReg=DEL_CURRENT_REG
    AddReg=MS_EDID_OVERRIDE-1.AddReg, 1920, DPMS
    CopyFiles=MS_EDID_OVERRIDE-1.CopyFiles
    
    [MS_EDID_OVERRIDE-1.Install.NTx86.HW]
    AddReg=MS_EDID_OVERRIDE-1_AddReg
    
    [MS_EDID_OVERRIDE-1.Install.NTamd64.HW]
    AddReg=MS_EDID_OVERRIDE-1_AddReg
    
    [MS_EDID_OVERRIDE-1_AddReg]
    HKR,EDID_OVERRIDE,"0",0x01,0x00,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x00,0x4C,0x2D,0x9D,0x02,0x00,0x00,0x00,0x00,0x2D,0x10,0x01,0x03,0x80,0x10,0x09,0x8C,0x0A,0xE2,0xBD,0xA1,0x5B,0x4A,0x98,0x24,0x15,0x47,0x4A,0xA1,0x08,0x00,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x66,0x21,0x50,0xB0,0x51,0x00,0x1B,0x30,0x40,0x70,0x36,0x00,0xA0,0x5A,0x00,0x00,0x00,0x1E,0x01,0x1D,0x00,0x72,0x51,0xD0,0x1E,0x20,0x6E,0x28,0x55,0x00,0xA0,0x5A,0x00,0x00,0x00,0x1E,0x00,0x00,0x00,0xFD,0x00,0x31,0x47,0x0F,0x32,0x09,0x00,0x0A,0x20,0x20,0x20,0x20,0x20,0x20,0x00,0x00,0x00,0xFC,0x00,0x53,0x41,0x4D,0x53,0x55,0x4E,0x47,0x0A,0x20,0x20,0x20,0x20,0x20,0x01,0x1D
    HKR,EDID_OVERRIDE,"1",0x01,0x02,0x03,0x1A,0xF1,0x46,0x84,0x13,0x05,0x14,0x03,0x12,0x23,0x09,0x07,0x07,0x83,0x01,0x00,0x00,0x66,0x03,0x0C,0x00,0x20,0x00,0x80,0x01,0x1D,0x00,0xBC,0x52,0xD0,0x1E,0x20,0xB8,0x28,0x55,0x40,0xA0,0x5A,0x00,0x00,0x00,0x1E,0x01,0x1D,0x80,0x18,0x71,0x1C,0x16,0x20,0x58,0x2C,0x25,0x00,0xA0,0x5A,0x00,0x00,0x00,0x9E,0x01,0x1D,0x80,0xD0,0x72,0x1C,0x16,0x20,0x10,0x2C,0x25,0x80,0xA0,0x5A,0x00,0x00,0x00,0x9E,0x8C,0x0A,0xD0,0x8A,0x20,0xE0,0x2D,0x10,0x10,0x3E,0x96,0x00,0xA0,0x5A,0x00,0x00,0x00,0x18,0x8C,0x0A,0xD0,0x90,0x20,0x40,0x31,0x20,0x0C,0x40,0x55,0x00,0xA0,0x5A,0x00,0x00,0x00,0x18,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x69
    
    
    [DEL_CURRENT_REG]
    HKR,MODES
    HKR,,MaxResolution
    HKR,,DPMS
    HKR,,ICMProfile
    
    [1920]
    HKR,,MaxResolution,,"1920,1080"
    
    [DPMS]
    HKR,,DPMS,,1
    
    [MS_EDID_OVERRIDE-1.AddReg]
    HKR,"MODES\1920,1080",Mode1,,"31.0-94.0,55.0-160.0,+,+"
    
    [Strings]
    MonitorClassName="Monitor"
    SourceDisksNames="MS_EDID_OVERRIDE Monitor EDID Override Installation Disk"
    
    MS_EDID_OVERRIDE="MS_EDID_OVERRIDE"
    MS_EDID_OVERRIDE-1="MS EDID Override
    Replace the bytes after HKR,EDID_OVERRIDE,"0",0x01, with your own EDID information (hexcodes for each byte). If your EDID is 256 byte long, then keep the HKR,EDID_OVERRIDE,"1",0x01 line and replace the remaining bytes with the correct values from remaining bytes.

    EDIT: Of course change the resolution values if needed.

    EDIT: http://www.tridef.com/forum/viewtopic.php?p=6914 - file at last post on 2nd page maybe ? Seems like a EDID override file exactly for your display.
     
    Last edited: 16 Aug 2012
  4. herman_blume

    herman_blume What's a Dremel?

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    Thanks for the answer faugusztin, you were indeed spot on.

    The EDID override you linked to was actually for a slightly different monitor. I couldn't find one for my exact model so I swapped it for a new monitor.

    Everything now works perfectly. :thumb:
     
  5. noizdaemon666

    noizdaemon666 I'm Od, Therefore I Pwn

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    Not to be a git and contradict, but monitors do have drivers, or at least something that resembles a driver.
     
    G0UDG likes this.

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