I can get sound, but no picture when I have my laptop hooked up to my tv (a Vizio). How can I solve this problem?

There could be several reasons why your Vizio TV goes black after being turned on, including a malfunctioning power supply, a damaged display panel, or a faulty backlight. Here are some steps you can take to troubleshoot the problem:

1. Check the power supply: Make sure that the TV is properly plugged in and that the power outlet is working. You may also want to try plugging the TV into a different outlet to see if that solves the problem.
2. Check the display panel: If the TV is getting power but there is no picture, the display panel may be damaged. Look for cracks or other signs of physical damage to the screen. If you find any damage, you may need to replace the display panel.
3. Check the backlight: The backlight is responsible for illuminating the screen, and if it is faulty, you may experience the symptoms you described. Look for any signs of damage to the backlight, such as flickering or uneven lighting. If the backlight is the problem, you may need to replace it.
4. Reset the TV: Sometimes resetting the TV to its default settings can solve the problem. To do this, unplug the TV from the power source, wait a few minutes, and then plug it back in.
5. Contact Vizio customer support: If none of these steps solve the problem, you may want to contact Vizio customer support for further assistance. They may be able to provide additional troubleshooting steps or help you arrange for repairs.

sounds like you need an exorcist!

Yes, changing a board will fix it but which one? Look inside for seized cooling fans. Listen to the power board for clicking. After it has turned on and off a few times, pull the plug and feel around for heat. Or you could just change the power board and the main board, or read this which is the best advice.

https://www.fixya.com/support/r29790007-repairing_own_television

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Right click on the volume tab in the taskbar in the far right and then click on playback devices. Check all of the devices and click set defualt and then try. Make sure you aux cable is plugged into the right port. Also mae sure all of the colors match on the tv to the cables.

how long did you leave it unpluged

Try to use the reset factory reset feature. Unplug the set. After unplugging press the power button for 30 seconds. Plug the set back in and turn it on.

I had the same thing just happen and I used the following instructions from the Vizio Website for "humming sound" on tv and it worked. My sound is now working!!!!

1- Power off TV

2- Unplug TV from outlet

3- Press and hold in the power button on the TV for 30 seconds (while it is unplugged from the wall)

4- Release the power button

5- Plug in the TV into a different outlet

6- Power the TV back on.

Reset the TV settings.

why should i tell you (fixYa) how i fixed the problem for free? You wanted to charge me for your info so i think it's only fair that i charge you for mines. I did figure out and solved the problem.

Same thing just happened to me contacted Vizio had me unplug the TV from the wall for about a minute and then replug and cut the TV back on and everything was fine. I have the television hooked into HDMI1.

you have to hook up the 1/4 headphone jack plug to the TV, from the computer. an Y audio cable with RCA plug (male) with headphone 1/4 male plug. hook the headphone jack to the green hole of the computer(sound out) to the audio input of the TV better yet to a stereo AUX port. also make sure the mute button hasnt been pressed.

I’m happy to help further over the phone at https://www.6ya.com/expert/david_92c86cbc79e9b552