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  1. #1
    ROG Enthusiast Array THX1139 PC Specs
    THX1139 PC Specs
    MotherboardASUS Z170 Pro Gaming
    ProcessorIntel i7 6700 (6th gen), Stock HSF, Undervolt Offset -0.15 V, LLC 4
    Memory (part number)Corsair LPX Vengeance 2x8GB DDR4-3000 (CMK16GX4M2B3000C15)
    Graphics Card #1Gigabyte NVIDIA GeForce GTX 950
    MonitorLG 21.5" W2246S-BF 16:9 Wide LCD Monitor 1920x1080 5ms
    Storage #1Samsung Evo 750 SSD, 250 GB
    Storage #2WDC WD2003FZEX-00Z4SA0, 2TB
    CPU CoolerStock
    Power SupplyXFX TS 750W (P1-750S-NLB9)
    Keyboard Logitech K120
    Mouse Logitech G500
    OS Win 10 Pro 64-bit

    Join Date
    Oct 2016
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    Second monitor on motherboard (third total) not detected

    I have been using two monitors with one connected to my graphics card and another connected to the motherboard via the VGA output. I recently tried to connect a third monitor to the DVI-D port using a DVI-VGA adapter but the monitor is not detected and does not receive a signal from the PC. I am using the most up-to-date drivers from the Chipset and VGA driver sections of the ASUS website. The only relevant BIOS setting is iGPU Multi Monitor which is already set to ENABLED in order to use the second monitor (via the VGA port). I've swapped the monitors around so I know the monitors are both working.

    I have something called Intel HD Graphics Control Panel installed and it lists only the single monitor.


    OS: Win 10 Pro 64-bit
    Mainboard: ASUS Z170 Pro Gaming, board revision 1.04, BIOS v1904
    CPU: Intel i7 6700, Stock HSF, Undervolt Offset -0.15 V, LLC 4
    RAM: Corsair LPX Vengeance 2x8GB DDR4-3000 (CMK16GX4M2B3000C15)
    Graphics: Gigabyte NVIDIA GeForce GTX 950 w/ 2 GB
    Sys Drive: Samsung Evo 750 SSD, 250 GB
    Data Drives: OCZ Vertex 2 SSD, 60 GB; WDC WD1002FAEX-00Y9A0, ~1 TB; WDC WD2003FZEX-00Z4SA0, ~2 TB; WDC WD2002FAEX-00MJRA0, ~2 TB; RAID 0, ~300 GB [Maxtor 6B160MO x 2]
    PCI-E SATA expansion: IOCREST SATA III 4-port PCI-e (SI-PEX40064)
    PSU: XFX TS 750W (P1-750S-NLB9)
    Last edited by THX1139; 08-26-2017 at 01:05 PM.

  2. #2
    TeamROG Moderator Array xeromist PC Specs
    xeromist PC Specs
    Laptop (Model)G73JH, Lenovo Y500 SLI
    MotherboardASUS Maximus IV GENE-Z
    ProcessorIntel 2600K
    Memory (part number)16GB DDR3 1600
    Graphics Card #1GTX980
    MonitorBenQ BL3200PT
    Storage #1Patriot PyroSE SSD
    CPU CoolerCustom WC loop
    Casecustom Antec 900
    Power SupplyCorsair HX1000
    Keyboard Logitech Orion Spark
    Mouse Logitech MX500
    Headset Plantronics 777 with Oregon Aero upgrade
    xeromist's Avatar
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    DVI-D ports are digital only and do not support VGA adapters. If you have a DVI-I port then you can use an adapter. Keep in mind that VGA is not plug and play so you have to connect it before you power on the computer and you may have to manually trigger display detection if it doesn't see it automatically.
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  3. #3
    ROG Enthusiast Array THX1139 PC Specs
    THX1139 PC Specs
    MotherboardASUS Z170 Pro Gaming
    ProcessorIntel i7 6700 (6th gen), Stock HSF, Undervolt Offset -0.15 V, LLC 4
    Memory (part number)Corsair LPX Vengeance 2x8GB DDR4-3000 (CMK16GX4M2B3000C15)
    Graphics Card #1Gigabyte NVIDIA GeForce GTX 950
    MonitorLG 21.5" W2246S-BF 16:9 Wide LCD Monitor 1920x1080 5ms
    Storage #1Samsung Evo 750 SSD, 250 GB
    Storage #2WDC WD2003FZEX-00Z4SA0, 2TB
    CPU CoolerStock
    Power SupplyXFX TS 750W (P1-750S-NLB9)
    Keyboard Logitech K120
    Mouse Logitech G500
    OS Win 10 Pro 64-bit

    Join Date
    Oct 2016
    Reputation
    10
    Posts
    43

    It turned out that it was a weird adapter that shouldn't exist - a passive DVI-D to VGA which is not a possible functioning adapter. I guess clueless people like me searched for them so a company in China started making and selling them on AliExpress even though they're useless junk.

  4. #4
    TeamROG Moderator Array xeromist PC Specs
    xeromist PC Specs
    Laptop (Model)G73JH, Lenovo Y500 SLI
    MotherboardASUS Maximus IV GENE-Z
    ProcessorIntel 2600K
    Memory (part number)16GB DDR3 1600
    Graphics Card #1GTX980
    MonitorBenQ BL3200PT
    Storage #1Patriot PyroSE SSD
    CPU CoolerCustom WC loop
    Casecustom Antec 900
    Power SupplyCorsair HX1000
    Keyboard Logitech Orion Spark
    Mouse Logitech MX500
    Headset Plantronics 777 with Oregon Aero upgrade
    xeromist's Avatar
    Join Date
    Jul 2010
    Location
    Sacramento, CA
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    180
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    6,360

    Ah, that makes sense. Sorry you got taken advantage of. :/
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    < < < Click the drop-down above my avatar for my PC specs!

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