Given it's Windows 10, ask the machine's maker for latest drivers. Do not use drivers suggested by Windows 10. Do this the old fashioned way. Maker's site, or if it's a card you bought the drivers from that card maker.
I always have my computer hooked up to my tv (Samsung) via HDMI, and it has always worked perfectly fine. I recently went away for the weekend, and when I came back the HDMI output has seemed to stop working. when i Extend my screen onto my tv, the laptop and tv both go black, but i can see my mouse on the tv, and only on the tv. if i check dupicate screens, only my laptop screen shows, and black on the tv. if i choose tv screen only, then again i can see my mouse, but that's it, everything else is black.
i have tried restarting my computer several times, changing HDMI cords, hooking up to a different TV and also made sure all my drivers were up to date. not only this, but i have also tried to roll back my graphics driver to the previous version, but the problem persists.
i am using windows 10, GE force GT555M and Dell XPS 17 L702X
anyone have any ideas? is there anything else i can try ?