HDMI, no SOUND, x64 Vista SP1

so i have a gateway 6831. t9300 processor, 4gb ram.
i am running vista ultimate x64 with SP1.
my HDMI out works fine... the only problem is the sound will not work.

my question is, does anyone have x64 SP1 Vista with working HDMI sound?

i have tried serveral sound drivers with no luck. i have done serveral searches on the web, all just basically telling you to select "DIGITAL OUT" or "HDMI OUT" under the sound options... and i do have those options and have selected them but sound still does not come out. if anyone had any luck with this please shed some knowlege.

 

If I'm not wrong, the HDMI video and audio are controlled by the graphics card. So, try updating the drivers for your graphics card.

 

hm, i am pretty sure sound is controlled by the sound driver, but it doesnt hurt to give it a try, thanks for the idea!

 

Try installing the latest nvidia notebook drivers. They contain a nvidia hdmi driver which I haven't seen being installed with custom drivers....

 

To what is the other end of the HDMI cable connected (7.1 receiver, TV, etc.)?

 

Have you gone and changed your sound settings in the control panel? You can switch to HDMI there..

 

Try toggling the video outpu Fn+F5 (I think). On occasion, my Vizio does not get the sound, but after I toggle the display it gets it.
Updating the vid drivers is usually a good idea as well.

 

i have tried to connect it to a TV, and a Monitor. both have working speakers.i used to have VISTA 32bit on my computer and sound worked fine when i connected it to my TV, its just vista x64.

 

yes, i have.

 

Just to verify...

You selected HDMI output and set it as default, then opened the particular application from which you wish to play audio, correct? If you start the application first, the switch to HDMI audio won't happen.

I regularly use HDMI from my 6860 to my TV for playing games and watching .wmv and .avi content on the big screen (Doctor Who Christmas and Easter Specials, DiscWorld TV movies, etc.). All of my drivers are still stock and I am running the factory installed Vista 64. See specs below.

 

Yea, the application you wish to get sound from can't be pre-loaded prior to switching to you HDMI output. If you do, you'll get your video signal on your TV, but audio will continue to come from the PC until you close and re-open the application on your HDMI source.

 

thanks for the replies. I understand what you guys are referring to because i did have it working in 32bit of vista at one point in time. i have tried to activate it prior to switching starting any programs or video.

is it so rare to find someone who is using HDMI sound/video on Vista x64?

 

Your not the only one, mine does not work either but I think it might be my tv. It shows the green bar bouncing from audio being output to HDMI in my "Sound" under "Playback Devices".

But I have no audio on my tv, but I'm not too worried about it now, I just plug a head phone jack into my computer.


EDIT: Forget what I said, I'm an idiot, it can't be my tv because my PS3 works fine with HDMI on it, so there is something screwy going on with the HDMI audio.

 

It actually can be the tv. The tv has to accept the sound signal it receives to play it correctly. I can tell you I have had this experience with 2 sony hdtv's sitting next to each other. 1 worked flawless every time. The other would never work. These 2 tv's are models from the last 3 years.

If you really want to test this right find a friend with an hdtv that wouldn't mind you plugging in. Make sure it's one of the latest hdtv's. I think the hdmi version. 1.2b or some junk is important in this situation but I don't know the details. I do know that you are going to run into this problem in some situations because the standards are not all exactly the same.

 

Your signal from your ps3 is not necessarily exactly the same as your signal from your laptop. The hdmi standard could easily be different.

 

ok, I'm using a cheapo AVOL 19 inch LCD so it might be the tv then.

 

Go to wikipedia.org and look at hdmi.
You will find a lot about the different standards on that page.

Here is a sample:
Relationship with personal computers
PCs with a DVI interface are capable of video output to an HDMI enabled monitor.[3] Some PCs include an HDMI interface and may also be capable of HDMI audio output depending on specific hardware.[129] For example Intel's motherboard chipsets since the 945G have been capable of 8 channel LPCM output over HDMI as well as NVIDIA’s GeForce 8200/8300 motherboard chipsets.[129][130] 8 channel LPCM audio output over HDMI with a video card was first seen with the ATI Radeon HD 4850 which was released in June 2008 and is supported by other video cards in the ATI Radeon HD 4000 series.[130][131][132][133][134] Linux can support 8 channel LPCM audio over HDMI if the video card has the necessary hardware and supports the Advanced Linux Sound Architecture (ALSA).[135] The ATI Radeon HD 4000 series supports ALSA.[135][136] Cyberlink announced in June of 2008 that they would update their PowerDVD playback software to support 192 kHz/24-bit Blu-ray Disc audio decoding in Q3-Q4 of 2008.[137] Corel's WinDVD 9 Plus currently supports 96 kHz/24-bit Blu-ray Disc audio decoding.[138]

Even with an HDMI output a computer may not support HDCP, Microsoft's Protected Video Path, or Microsoft's Protected Audio Path.[130][139] In the case of HDCP there were several early graphic cards that were labelled as "HDCP-enabled" but did not actually have the necessary hardware for HDCP.[140] This included certain graphic cards based on the ATI X1600 chipset and certain models of the NVIDIA Geforce 7900 series.[140] The Protected Video Path was enabled in graphic cards which supported HDCP since it was required for output of Blu-ray Disc video.[130] In comparison the Protected Audio Path was only required if a lossless audio bitstream was output (such as Dolby TrueHD or DTS-HD MA).[130] Uncompressed LPCM audio though does not require a Protected Audio Path and software programs such as PowerDVD and WinDVD can decode Dolby TrueHD and DTS-HD MA and output it out as LPCM.[137][138][130] A limitation is that if the computer does not support a Protected Audio Path the audio must be downsampled to 16-bit 48 kHz but can still output at up to 8 channels.[130] No graphic cards were released in 2008 that supported the Protected Audio Path.[130]

Asus announced in June of 2008 the Xonar HDAV1.3 which in December of 2008 received a software update and became the first HDMI sound card that supported the Protected Audio Path and can both bitstream and decode lossless audio (Dolby TrueHD and DTS-HD MA), although bitstreaming is only available if using the ArcSoft TotalMedia Theatre software[141].[142] The Xonar HDAV1.3 has an HDMI 1.3 input/output and Asus says that it can work with most video cards on the market.[141][142][143]

At WinHEC 2008 Microsoft announced that color depths of 30-bit and 48-bit would be supported in Windows 7 along with the wide color gamut scRGB (which can be converted and output as xvYCC).[144][145]

 

it was working on the same TV, in vista 32bit.
now in vista 64bit, it is no longer working. the only thing that has changed is the driver and OS.

 

At this point we know your hardware is capable (both TV and computer) and that the OS with original 64-bit drivers is capable (I'm using the same configuration). Getting it to work is just as simple as everyone says. Therefore, we must start to think about faulty installation of the driver/OS. Have you tried to uninstall then re-install the stock audio driver? I know that sounds basic, but it can't hurt to try if you haven't done so yet.

 

UPDATE!!!!!!!!!!!!!​

thanks all for the effort... i finally resolved the problem. i am not sure what it could have been, but after several attempts to re install the drivers both audio and video with no success, i reformatted the hard drive and re installed Vista x64 and used one of the IDT drivers on laptopvideo2go... and it worked...

Tybalt39 is right, it must be some kind of faulty driver or OS installation. i am not sure what the problem was, but re installing the OS and drivers worked for me.