OpenElec MSI mode

[NY152]

Hello,

I'm trying to install OpenElec correctly but I'm in trouble. I do not have sound (well, but something very expensive and innodible)

With lspci, I have this for my graphics card:

 

03:00.0 VGA compatible controller: NVIDIA Corporation GM107 [GeForce GTX 750 Ti] (rev a2) (prog-if 00 [VGA controller])
        Subsystem: Gigabyte Technology Co., Ltd GM107 [GeForce GTX 750 Ti]
        Flags: bus master, fast devsel, latency 0, IRQ 39, NUMA node 0
        Memory at fa000000 (32-bit, non-prefetchable) [size=16M]
        Memory at e0000000 (64-bit, prefetchable) [size=256M]
        Memory at f0000000 (64-bit, prefetchable) [size=32M]
        I/O ports at e000 [size=128]
        Expansion ROM at fb000000 [disabled] [size=512K]
        Capabilities: [60] Power Management version 3
        Capabilities: [68] MSI: Enable+ Count=1/1 Maskable- 64bit+
        Capabilities: [78] Express Legacy Endpoint, MSI 00
        Capabilities: [100] Virtual Channel
        Capabilities: [250] Latency Tolerance Reporting
        Capabilities: [258] L1 PM Substates
        Capabilities: [128] Power Budgeting <?>
        Capabilities: [600] Vendor Specific Information: ID=0001 Rev=1 Len=024 <?>
        Capabilities: [900] #19
        Kernel driver in use: vfio-pci

03:00.1 Audio device: NVIDIA Corporation Device 0fbc (rev a1)
        Subsystem: Gigabyte Technology Co., Ltd Device 3681
        Flags: bus master, fast devsel, latency 0, IRQ 37, NUMA node 0
        Memory at fb080000 (32-bit, non-prefetchable) [size=16K]
        Capabilities: [60] Power Management version 3
        Capabilities: [68] MSI: Enable- Count=1/1 Maskable- 64bit+
        Capabilities: [78] Express Endpoint, MSI 00
        Kernel driver in use: vfio-pci

MSI mode is on the video part (MSI: Enable +) but not on the audio part (MSI: Enable-)

In the .config / modprobe.d / sound.conf file I already have:
 

options snd-hda-intel enable_msi=1

Strange in my opinion because for my video card we should speak of nvidia not intel no?

If anyone can help me, it would be nice