How do i test if my hdmi port is working? I have HP 14 b120dx Sleekbook which is 16 months old and out of warranty. It may be coincidental but after Microsoft pushed updates on Sunday, Aug 17, my hdmi port quit working. The display adapter id Intel HD Grahpnics 3000. Device Manager does not show an HDMI adapter. Ran the HP test which showed no new drivers were available.
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