No sound through HDMI

RyuuzakiMasato7 said:

Was looking in the Device Manager, about to follow your advice fireberd, when I noticed there were two identical items called High Definition Audio Controller - one of which was disabled. Enabled, fixed. Unbelievable. I think I missed it since I was only looking in the Sound, video and game controllers section, this was in System Devices. I definitely didn't disable it, which is confusing. No matter, it works now

THANK YOU SO MUCH! This completely solved my problem which I have been struggling with for several weeks. Went to Device Manager and realized I had two items called "High Definition Audio Controller" and one of them was disabled. Enabling it brought the Digital Audio (HDMI) option back to playback devices where it belongs.

Before I had exactly the same problem as RyuuzakiMasato7. Now I can play movies on TV from my laptop again (through HDMI), with the sound coming drom the TV instead of the laptop. I still have no idea how the High Definition Audio Controller became disabled in Device Manager, though.

I LOVE YOU ALL Greetings from Denmark

My PC is acer aspire x3200
I discouvered this happened because I flashed a wrong BIOS which was posted on acer EU website.
reflashed the correct one and the problem was solved.

i dont see "High Definition Audio Controller" in my device manager.. help!!

Ok, so I've tried to go through updating drivers. I've looked for the High Definition Audio Control in Device Manager; I've uninstalled software that my children apparently had installed that might have caused the original problem; I've slammed my head into the wall a few times (well maybe not but I've felt like it)
Any other suggestions for how to get my sound working over hdmi again? It was working fine up to about 3 weeks ago but cannot seem to find the change that was made to cause it to not function. I have picture but no sound.
Using HP Pavillion G6 with Windows 7; Intel i3; 4gb ram; 64 bit OS

Hi, I just signed up to post details of how I managed to fix this.

It was pretty simple in the end, right click on the volume control icon and select 'Playback devices', set hdmi as default and you're good to go.

Laptop needs to be connected to the TV for the option to be available.

Make sure your graphics card is updated.

Mine is NVIDIA and I had ignored it's updates for awhile and so my HDMI cable wouldn't send sound to the TV it would keep playing from my laptop. I searched through these forums for an answer and saw a bit mentioning the graphics card controlling the HDMI stuff and that the sound driver (ex: Realtek) only controlled the sound through for the laptop. So update your graphics card.

I'm just posting this so future hunts for answers don't take as long as mine did. :)

Lazare said:

Hi, I just signed up to post details of how I managed to fix this.

It was pretty simple in the end, right click on the volume control icon and select 'Playback devices', set hdmi as default and you're good to go.

Laptop needs to be connected to the TV for the option to be available.

This worked for me, too.

However, I was disappointed to see that Windows 7 doesn't seem to allow simultaneous audio output from both the audio (Realtek) and video (ATI) devices.

Thank you, Firebird! Your post helped me in 2020! I hope this thread help keep helping people like me: I have an old laptop where I run Windows 7.