Laptop - Can't Use HDMI and Headphone Jacks At The Same Time

Acer Extensa 5430-5720 15.4" notebook -...
February 7, 2012 at 16:55:04
Specs: Windows 7 Pro, AMD QL-65/3 Gb
I don't know if this is a Windows 7 or a laptop hardware issue, so I'll start here.

I can't seem to use the HDMI port and headphone jack on my Acer laptop at the same time.

I can hook up my laptop to my receiver via the headphone jack to listen to music through my sound system.

I can hook up my laptop to my flat screen via the HDMI port.

However, it seems that the headphone jack is disabled when the HDMI port is in use, so I can't listen to Netflix videos, etc. through my sound system while watching them on my flat screen. I have to listen to them through the TV.

Does anyone know if there is a setting to enable both ports at the same time?

Thanks!

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#1
February 7, 2012 at 19:07:20
You'd have to disable the hdmi sound and enable the built in sound device. hdmi uses it's own sound device.

To enable both you might need to run some second party app to tunnel one to the next. I'd bet it could be done but I haven't read how to do that.

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#2
February 7, 2012 at 20:34:38
How would I disable the HDMI sound? There is no Control Panel for the HDMI adapter.

I checked the Acer support site and they don't show an HDMI driver for download.

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#3
February 7, 2012 at 23:22:20
If you just use the HDMI Cable do you get both Audio and Video on TV ?

If so take a cable from line out (headphone) on TV to line in on Stereo System !

Googling is quicker than waiting for an answer....


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Related Solutions

#4
February 8, 2012 at 00:01:20
You can choose which port to output sound from. You can make default either the HDMI port or the sound jacks or optical port, if available. Look in the Control Panel Windows audio control panel applet.

If you still cannot see it, switch to classical view of the control panel rather than category view.

CoolGuy


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#5
February 8, 2012 at 06:25:04
Jolicloud:

I will try the line out from the TV. If it works, it'll be one more step to explain to the wife. ;-)

suatcini:

I'll look for that Control Panel choice (again). I couldn't find it the last time I looked. It's a new-to-me laptop and Windows 7 is also new-to-me.

I've found drivers for the touchpad, webcam and audio at the Acer support site, which made these devices work better than the generic Windows drivers. However, I don't recall seeing any option under the audio control panel to switch the output away from the HDMI when it is plugged in. As I mentioned earlier, I did not see an HDMI driver at the Acer site.

On my laptop, the sound defaults to the speakers, then to the headphone jack if plugged in, then (unfortunately) to the HDMI port when that cable is plugged in.

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#6
February 8, 2012 at 13:08:00
You have two sound devices. You enable and disable one or the other. HDMI has it's own or shared sound device. The normal speaker and headphone device is a separate device.

A Pit Bull is like a gun you can pet. And there is no safety on it.


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#7
February 8, 2012 at 19:59:34
OK, here's what I found...

When I look at the Manage Audio Devices Control Panel, I see 2 listings:

Digital Audio (HDMI)
High Definition Audio Device
Not Plugged In

Speakers
Realtek High Definition Audio
Default Device

When I plug in the HDMI cable, the HDMI device switches to Default Device and the Speakers show Ready.

If I click on the Speakers device and click Set Default, the Speakers switch back to Default Device and I can then use the headphone jack for the audio and the HDMI for the video. It's going to be kind of a pain to have to go into the Control Panel every time I want to use the HDMI port and my sound system, but I guess that's the way it goes.

BTW...As an experiment, I tried disabling the Speakers under the Properties button but that turned out to be a bad idea. The speakers disappeared from the Control Panel and I couldn't figure out how to get them back. There was no Realtek device in the Device Manager so I couldn't Enable them again. When I tried to reload the Realtek driver, Windows uninstalled it, rebooted and then installed a generic Windows audio driver. The speakers reappeared in the Control Panel, but without all of the Realtek features. I then installed the Realtek driver again and it replaced the generic driver so that Realtek High Definition Audio showed up in the Control Panel again.

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#8
February 9, 2012 at 00:20:19
There is no separate HDMI driver. They come built-in with the video (gfx card) drivers. Therefore, you cannot find one.

CoolGuy


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#9
February 9, 2012 at 07:05:33
suatcini is exactly right. HDMI audio come thru the graphics card, not the motherboard. The HDMI sound driver is built into the graphics driver.

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