Dell l502x (NVIDIA 540M) HDMI Audio issues (multiple devices)


  1. jonnyhotchkiss
    Posts : 260
    Windows 7 Ultimate 64bit
       New #1

    Dell l502x (NVIDIA 540M) HDMI Audio issues (multiple devices)


    I have been trying to use my (win7.x64) Dell l502x laptop with my folk's new samsung lcd tv.

    I finally got the sound bit working (opening nvidia control panel refreshes the audio playback devices list), but I have several erroneous devices that appear (and disappear) when connecting the TV.

    I tried the same device (TV) with the same cable, with my brother's new toshiba laptop, and there were two playback devices (as expected) - speakers, and TV.

    Mine looks like this



    Can any l502x owners confirm (re driver install) if they did follow these instructions

    ie

    R300420 Video: (Do "Custom Install", Uncheck HD Audio) nVidia GeForce GT 435M, GeForce GT 420M, GeForce GT 445M, Stereoscopic 3D, GeForce GT 525M, N12E-GE-B(LP)-GT 550M, N12E-GE-B ( GT555M), GeForce GT 540M, v.8.17.12.6721, A07 (155 MB)

    willing to try anything to attempt to get this configured "properly".

    also having issues with nvidia display driver crashing when external is connected, despite underclocking gpu as advised


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  3. fireberd
    Posts : 8,135
    Windows 10 64 bit
       New #2

    I have multiple HDMI audio entries listed in the Sound Panel/Playback section. Mine are AMD HDMI audio as I have an AMD Radeon video card.

    You have an NVIDIA video card so the reason for the NVIDA listings. The Toshiba may only have the basic Intel Video, for example, and the reason for only one entry.
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  4. jonnyhotchkiss
    Posts : 260
    Windows 7 Ultimate 64bit
    Thread Starter
       New #3

    thanks for your contribution. With the AMD devices, are they all unplugged?


    (These appear when Samsung TV is connected.
    Ususally they disappear after disconnecting HDMI, lately they've been sticking a bit. Disappear about a minute after unplugging HDMI)


    How can they be made use of if they're "not plugged in"?
    I only have one HDMI port on my l502x
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  6. fireberd
    Posts : 8,135
    Windows 10 64 bit
       New #4

    That is normal, unless you have an HDMI cable plugged into the PC.
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