reka121402 wrote:
I have that as well, it seems to be a Windows 8 thing. I've got my own HDMI issues, video works fine but I get no audio through my TV. I googled the issue and it came up with solutions through device manager but none seemed to work even though all settings checked out.
So maybe it is a Windows 8/G750/HDMI issue i don't know.
If you haven't tried this to get your HDMI audio working, right click your desktop taskbar speaker icon to choose playback devices and set the nVIdia HDMI or Realtek Digital output as the default device as in the screenshot below (If it matters, I didn't have a TV hooked up when I took this screenshot).
You might also want to check and update your audio drivers.
Hope this helps!
Also check the Nvidia Control Panel Digital Audio setup
BlapX wrote:
Ok... Thanks for the replies.... Hmscott... yea i know that screen. but i really dont know what the correct settings are?
It is supposed to be an easy thing, plug in the HDMI cable to the output device, and the device will show up in the Sound=>Playback tab, and you select the new device and click Set Default - and sound magically emanates from your new device.
Apparently the difficult thing, sometimes, is getting the HDMI device to appear 🙂
I only have a couple of Monitors here with audio output, but I have used an Asus laptop to connect to several TV's and was able to select them successfully for audio output - and the audio actually came out. I also used my Asus laptop to drive a Marantz AV7005. I also used the Optical output from my Asus laptop to drive audio to the AV7005.
So I know mostly success using HDMI for audio output, and I need a failure to come up with a tested solution, so here is the next best thing.
I did find this forum posting that gave a solution, which while a pain to implement, it does make sense.
http://forums.anandtech.com/showthread.php?t=249778
Basically the solution is, you have to force the laptop to load the driver for the HDMI device while it is the only active / configured device, and apparently that can't be done when other devices have already been configured through the installed Nvidia/audio drivers.
From the post, Asus support suggests you have to uninstall both drivers, turn off and unplug all other audio outputs, plug in the HDMI cable to the laptop and device, power off/on and boot up and reinstall the Nvidia/Audio drivers and the HDMI device will be found and installed.
I am assuming you can then add back your other devices - at least I would hope you wouldn't be stuck with just the one device.
Before doing this, if I had the problem, I would simulate removing the other devices by disabling them in the Control=>Sound=>Playback devices one at a time, but first enable Show Disabled Devices by right clicking on one of the enabled devices first!
Once all the devices are disabled, plug in both ends of the HDMI cable, power cycle the display end (leaving it on), power on/off the laptop (shutdown not reboot, and then power on), and when the laptop comes up get into the Control=>Sound=>Playback dialog and hope you see the HDMI device so you can enable it, configure it, and use it.
Here is what it should look like when it is working:
When I plugged in the HDMI cable to the powered on monitor, the device became immediately available, and as soon as I selected it and clicked Set Default the audio came out of the display.
If this works for you with a monitor, and not with a TV, there might be something else going on at the TV end - if the input isn't selected at the TV there might not be a signal available to the laptop to know it is plugged in to the TV. You might need to turn off auto and go for manual input selection - and there might be other options at the TV to set as well.
I will see if I can take the laptop to a TV and see what happens 🙂
Good luck!
