HDMI-output not working properly when Hyper-V is activated

I found a problem in my laptop that I want you to help me with. I think that my laptop has a "virtualization" problem. After I activate Hyper-V, the HDMI-output doesn't work properly anymore when connected to an external monitor/screen. There is no sound from the speakers to the external display, and videos I play (both online and offline) hangs an awful lot, and are very slow, no matter YouTube or your own videos. But when i disable Hyper-V again, or use the laptop speakers as main speakers, the HDMI-output works fine again. But it isn't supposed to do so i think... The laptop should work normally after the Hyper-V activation. But it seems like others is having the same issue after searching around in the web.

Things I tried to do:

– Reboot by laptop
– Uninstall and reinstall sound and graphics drivers.
– Checked out if Intel Virtualization Technology was enabled in BIOS - and yes, it was
– Updated BIOS
– Reinstall Windows 10
...None of the above did help. Only solution so far is to deactivate Hyper-V, or set my laptop speakers as the main speakers.

At the end, I tried to run the "sfc /scannow" command as an administrator, and it displayed this message to me after the scan finished:
"Windows Resource Protection found corrupt files but was unable to fix some of them. Details are included in the CBS.Log windir\Logs\CBS\CBS.log."

I found the corrupted file (opencl.dll) in location C:\Windows\SysWOW64. After I fixed the corrupted file, I rebooted my PC and re-run the sfc/scannow command again. It dind't find any broken, missing or corrupted files, which is good. I testet the HDMI output with an external monitor again, but still, the problem is still there...

What I want to ask you now, is if there is anything I can do to fix this issue, so I can play videos and sounds from an external monitor via HDMI while Hyper-V is activated, or isn't it any solutions but deactivate Hyper-V? If there's no solution, will there be an update or another major Windows 10 upgrade that will fix this issue? Thank you.

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""UPDATE""

– I have tried to activate Hyper-V on my friends laptop to see if the same problem happens. After the activation, the same problem showed up with his laptop.

– I have recently updated my laptop to the new Windows 10 Anniversary Update with the hope that it will fix Hyper-V issue, but it didn't ...

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Mohamed Ali Mohamad