I just plugged in my HDMI cable and everything is working fine except I don't have any sound. I have a Sanyo TV screen that I have plugged into my PC computer using my new cable. I tried hitting input on my remote so I can switch volume control over to HDMI but instead of showing me a list of things to choose from it changed the channel. I have also tried switching from HDMI-1 to HDMI-2 but that didn't give me sound either. If there is anything you know of to help I would greatly appreciate it!
It could be one of two things that I can think of. First of all check that audio output of your laptop is set correctly (you should find them under control panel) you may have to experiment with the settings. secondly you have to find the audio settings on your TV they should be under a menu somewhere and look at those. It's hard to be exact as not all models are the same.
1: You failed to provide the model number of your computer or model number for the graphics card I don't know if it supports audio out of the hdmi output. 2: You failed to provide what operating system is on your computer I don't know the exact details for what you got, but you have to enable hdmi audio by making sure digital audio is enabled, sample rate or other qualities selected, rear/hdmi audio enabled.ect
Most likely a settings issue on the PC - go to Control Panel (or the Speaker icon if you have one on the task bar). Click on Sound (or Right-click on icon) it opens up tabs - Upper left is Playback, be sure HDMI device is Default (green check-mark). Also some PCs' sound can be controlled from a dedicated software package (like Beats Audio on HPs, THX Trusound, etc) and you can do the same thing there. Sometimes even having this set correctly still fails to send sound to the TV- in this case you need to reboot the computer with the TV powered on and HDMI cable connected - what happens occasionally is PC doesn't see the HDMI connections unless it's already there and working when you boot, and in the boot process, when the PC queries all the ports it sees the HDMI and it will then work (I have to do this now and then with mine). Be sure also to choose either HDMI-1 or HDMI-2 based on which one your PC is plugged into - it will say on the TV port you plug into which one it is. Hope this helps - good luck!