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