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Hello Experts, The HDMI in My Sony Vaio Duo 13 (Core i7) not working ! I tried to change the HDMI cable, The external Screen, I changed the screen resolution, I made factory reset , but in vain! It was working before :( Any recommendations or workarounds? Thanks Monzer

Have you considered a USB-to-HDMI adapter? You can plug it into a USB port on your computer, and it will provide an HDMI port for peripherals that require an HDMI interface.