ive been looking for help to solve my issue for a week now ( since my windows 10 upgrade from win 8.1 ) and i do not want to do a clean install unless it is totally the last resource available, so i hope someone has come with the issue and found a way to solve it.
I was running Windows 8.1 with external monitor via HDMI, sound and video worked flawlessly, but when i upgraded my system to windows 10, i noticed my monitor wont reproduce the audio, Windows is showing audio activity, and my device (HDMI) is set as default in sound properties, another thing i noticed is that video (youtube) starts to stutter when HDMI audio is selected, everything is corrected when i switch back to laptop speakers, audio returns and video starts playing fine.
Ive tried so far the following troubleshoot solutions:
-Unistall sound device -Reinstall sound drivers -Disable/Enable device from device manager -Downgrade drivers -Windows Sound Troubleshooting -Plug/ unplug monitor
The most strange thing about this issue is that it happends only with a cold boot, when i boot my system see no sound and video stutter, i reboot, and sound is on again, and video plays ok, but if i shutdown, and boot again it gets all wrong again. I also have a friend with same setup as mine, and everything is working fine, no issues at all.
My machine is a Lenovo Y50 (16GB ram, i7-4710HQ (intel HD4600), and Geforce GTX860m)
Hope someone can help me, im totally frustrated now.
