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UM7500 4K not showing HDMI signal from PC/Notebook


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I used to extend my screen from PC/Notebook to my TV but i stayed a long period without do it.
It happens that since a few days ago i am needing it and for my surprise is not working anymore. Tried other cables, updated the drivers and O.S. but nothing worked. So i decided test at the room's TV (LG as well) and worked perfetcly.
I looked for all internet and youtube for similar issues and a solution but couldn't find it, until i receive my weekly mail from this forum and remembered it.

I am suspicious that was one of the several updates since i extended for the last time that made this!

So, does anybody could help me, please?
 

Thanks in advance!

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