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tozz3r
Up and Coming
October 25, 2014

Interfering software is preventing the Rift from activating

I'm trying to run the Demo Scene in the utility with the Rift Display Mode set to Direct HMD Access.
Running Windows 8.1.
Rift Firmware 2.12
Rift Runtime 4.3

Error:
There is a problem with your Rift configuration.
Interfering software is preventing the Rift from activating. Loaded UMD is reported as 'nvwgf2um.dll'.

Anyone else?

    48 replies

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    tozz3rAuthor
    Up and Coming
    November 9, 2014
    "cybereality" wrote:
    Can you guys try disabling SLI, Surround, and unplugging any extra monitors (one monitor should be OK)?

    Especially with SLI, the video ports you use on the GPUs will make a difference.


    I did two things that made it work.
    1. I moved the rift hdmi to card number 1. This got rid of the dll error message, but my rift would still not turn on, stayed yellow.
    2. I unplugged the two other monitors, so I now have rift and one monitor in card number 1.

    I did not disable SLI.

    Now it works and the rift turns on in direct mode.

    Edit:
    I went ahead and plugged all monitors back in and now it works with the 3 monitors. The only difference I see is that the Rift is now recognized in the NVidia control panel, which it wasn't before.
    RiftSetup.PNG
    keii
    New Participant
    November 10, 2014
    Hi, I just installed the 0.4.3 SDK and I'm facing the same problem:

    "There is a problem with your Rift configuration. Interfering software is preventing the Rift from activating. Loaded UMD is reported as aticfx64.dll"

    Notebook: Sony VAIO™ E Series SVE14A15FGW
    Graphics: AMD Radeon™ HD 7670M / Intel® HD Graphics 3000
    Operating System: Windows 8.1 pro
    Processor: Intel(R) Core(TM) i5-2450M CPU @ 2.50GHz 2.50GHz
    Memory (RAM): 4GB DDR3 RAM
    System type: 64-bit operating system, x64 based processor

    The Oculus Rift is detected and the demo (from Oculus Configuration Utility) works pretty well, but I can't open any other demo, neither in extended mode nor in direct mode...
    The 0.4.2 SDK works well here!
    gordonklarson
    New Participant
    November 11, 2014
    I'm having the same issue. For me dlumd11.dll is reported as what's causing the conflict. From what I can tell that dll is used for a USB 3.0 monitor I have connected. If I disconnect the monitor and remove the associated software for it, everything runs fine. This conflict wasn't occurring with earlier versions of the SDK.
    cybereality
    Inspiring
    November 11, 2014
    @gordonklarson: I'm not surprised a USB display was causing conflict. Can I ask which brand/model you have?
    AMD Ryzen 7 1800X | MSI X370 Titanium | G.Skill 16GB DDR4 3200 | EVGA SuperNOVA 1000 | Corsair Hydro H110i Gigabyte RX Vega 64 x2 | Samsung 960 Evo M.2 500GB | Seagate FireCuda SSHD 2TB | Phanteks ENTHOO EVOLV
    gordonklarson
    New Participant
    November 12, 2014
    It's an Asus model MB168B+
    Exprience111
    Up and Coming
    November 23, 2014
    I have the same issue!

    i bought a new pc, its a beast, i7 4790k, 2x msi r9 270x 4g, 32 gb ram.asus h97M plus motherboard.

    now i get that same error, AMD catalist 14.4


    all the ports on the second card dont work aswell, crossfire is enabled...


    when i run the demo scene the head tracking works and i see it on the mian display, but the oculus is black and that error
    Please help.

    edit : i fixed it , but weird.

    disable crossfire, switch from Direct HMD to extend desktop. Now all the ports on card 2 work. The oculus is in de HDMI of card 2.

    will disabling crossfire cost me performance?
    ctrlaltdavid
    Participant
    November 25, 2014
    I've encountered the problem witih dlumd11.dll interfering and preventing my DK2 from activating. My USB monitor is a Lenovo ThinkVision using DisplayLink. Disconecting the USB monitory and uninstalling DisplayLink made the problem go away.
    mdvx
    New Participant
    November 29, 2014
    I uninstalled a DisplayLink USB driver, and that fixed it.
    sgallouet
    Up and Coming
    December 17, 2014
    i got the same issue except
    - when i do tasklist /m aticfx32.dll or 64.dll it said no task are running with it (after i closed explorer).
    - that error only happen in direct mode.
    - Rift 4.4 with windows8 on a notebook with multi gpu intel/ati.
    Anonymous
    December 21, 2014
    Anyone figure this out yet? I can not get my DK2 to work in DIRECT HMD mode at all. I only have 1 monitor and the Rift plugged in. Any advise ?? I get the dlumd11.dll as the interfering software. I don't know what else to try.

    Any help...

    thank you
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