Oct 2, 2016 - Did the issue start after any recent windows updates? The service tag and download the BIOS, update and restart the machine and check. You can visit the official Dell site for HDMI drivers and download them. The flash full moves downlod hindi downlod mp4. Complained of no HDMI output or audio not working, after connecting to TV through HDMI. Also, many driver software check your computer when you install them.
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Hi LOADSTONE007S, What is the exact system model? What is the current OS installed on the system? Did the issue start after any recent windows updates? What is the exact TV model? What is the HDMI cable version you are using? Have you tried another HDMI cable?
Have you tried connecting to another monitor / television? If the system was working fine earlier, then perform a system restore to restore the machine to an earlier point where it was working fine - Update the BIOS - - enter the service tag and download the BIOS, update and restart the machine and check.
Reinstall the video driver from the vendor site. Check for the driver model in device manager -> display adapters. If you are unable to find the link, send me a picture of the display adapters in device manager and I shall provide links from vendor site. Create a local admin account and check - Also, please click my DELL-username and write me a private conversation with the service tag and your contact details(Name and Email) for case records. Let us know if you have any other queries.