Lenovo W540 WINDOWS 10 HDMI output ISSUE => UNRESOLVED

T

Toni&Cuea


Dears,

since 6 months I noticed a really annoying issue. When I connect my W540 to HDMI to a TV or a projector, the audio doesn't work.


I have to uninstall and reinstall audio drivers, but as soon as I make an hot HDMI plug (through ultra dock station or miniDP connector), sounds disappears and I had to swear to get it back. if it gets back, because with the projector it will never come back.


I use a really long HDMI cable (> 5m, but this should' t be an issue).


Tried to update K21000 driver to the last version NVIDIA Optimus Display Driver for Windows 8.1 (64-bit), 8 (64-bit) - ThinkPad - US

Tried to unplug the W540 battery.




I am quite desperate and unable to resolve this issue !!!
Tried all options here but NONE working https://support.microsoft.com/id-id/help/4520288/windows-10-fix-sound-problems

Sound comes after each reboot. After the 2nd HDMI hot plug sounds disappear. That's weird and crazy !


Tried to reduce the screen resolution


I hope somebody can help me in resolving definitively this issue.

I read several post but none provide an effective solution.

I am bored an frustrated.


View: https://www.youtube.com/watch?v=b9B_0R5MIuQ


View: https://www.youtube.com/watch?v=7AAHBMx1UWI&t=134s



View: https://www.youtube.com/watch?v=fSiHz9zWPN4


View: https://www.youtube.com/watch?v=-dbi6qu-gXU


View: https://www.youtube.com/watch?v=scD69vXOJLk



https://i.ytimg.com/an_webp/T1ccTce37Lg/mqdefault_6s.webp?du=3000&sqp=CIjZ0u8F&rs=AOn4CLBXxRwk8cjS7z...


I have this question too


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