Fix 4: Check your TV’s Speaker Settings
It is usually possible to turn on and off the internal speakers in the TV’s audio menu. It is important to read the television owner’s manual if you are unsure of how this control works or is labeled on your TV. When you plug an HDMI-equipped soundbar into the HDMI ARC connection, the TV’s internal speakers will be turned off automatically, but the HDMI-equipped soundbar will receive sound automatically.
Fix 5: Try turning eARC off on the TV
New TVs that support HDMI 2.1 use Enhanced Audio Return Channel (eARC) to send a higher-quality, multichannel audio signal to soundbars and AV receivers, as long as both devices support eARC. In one case, the manufacturer told us that when a TV is paired with an unsupported soundbar, its eARC function can cause unpredictable problems. The TV should have a menu for settings related to audio where you can disable eARC.
Fix 6: Update the Firmware
It is not uncommon for manufacturers to update the firmware to fix HDMI glitches. To verify that your TV or soundbar has the latest firmware, look in its menu or on the manufacturer’s website’s support section. It may need to be installed manually if it doesn’t, usually by downloading it directly from the internet or by connecting a USB stick to it. Once that is done, make sure that the TV or soundbar is unplugged for 10 seconds before plugging it back in. You may also benefit from doing a factory reset, as discussed below.
Fix 7: Try a New HDMI Cable
It might not be able to handle the newest HDMI technologies with an HDMI cable that’s many years old, and certain devices may be picky about HDMI cables for the reason that it’s difficult to figure out. This problem recently occurred with the Roku Soundbar, which worked intermittently until we replaced the HDMI cable at Roku’s suggestion. HDMI cables are available in high-quality, up-to-date versions, which we note in our HDMI cables guide.
Fix 8: Switch to A Digital Connection
The HDMI connection may still malfunction even if you try everything you can think of to get it working. You can bypass HDMI glitches by connecting your TV to the soundbar with an optical digital audio cable (usually called “optical” on the back of your gear). This solution does, however, come with some drawbacks, most notably the fact that optical digital connections cannot pass Dolby Atmos and DTS:X audio.
Fix 9: Use Factory Reset
It may be necessary to perform a full reset on your devices to resolve the HDMI connection issue. In most TVs, this option can be found in the System menu. If your soundbar requires a factory reset, follow a particular sequence of buttons; you can find the instructions in the manual or on the manufacturer’s website. If you’re using an antenna, you may need to rescan for TV channels after a reset, re-establish your Wi-Fi connections, etc. Many or all of your previous settings may be lost during a reset.
Fix 10: Check Your Network Connection
Use a strong wireless connection to stream video from your source devices, smart TV, and/or soundbar if you’re streaming over Wi-Fi. This can usually be checked on most devices. So, it is recommended that you move your network router or upgrade your network if you are not getting a strong wireless connection. The cables connecting your modem, router, and audio/video devices need to be checked if you have a wired Ethernet connection.
Also Read: Fix: Vizio TV Power Light Blinking, But No Picture
So, that’s how to fix Vizio Soundbar not Working on Samsung, LG, Sony, Hisense, or Any Other Smart TV. I hope that you find this article helpful. For more info, comment below and let us know.
Having a sound issue with a 2023 LG Smart TV and a Vizio 5.1 surround sound system. Both the TV and sound bar have digital OPTICAL (4). That’s how they’re connected and SB has NO HDMI connection.
The only sound I get is through the TV speakers and I can control that via the LG TV remote. No sound from sound bar. Have used this same SB with two different Samsung TVs including a 2014 model. Have spent considerable time reading both manuals online, with soft resets and BT pairing. Do I give up and buy an LG sound bar? Or return the brand new TV?
Thanks.