Compaq 8510p HDMI connection to Plasma - no sound

I'm attempting to connect my Compaq 8510p to my Panasonic Plasma TV via HDMI cable and I'm getting video by no sound. I have rebooted the Laptop with the HDMI cable attached and that doesn't solve the problem. I have a SoundMAX HD sound card and digital output is turned on. Anyone have any ideas how to make this work?

After you hook up to the TV, go to Sound in the Control Panel. You'll need to tell it to output your sound through the HDMI connection rather than your regular speakers through here. I hope that helps!

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HT3209 If I purchase an iTunes movie and try to play it back through my computer/tv via and hdmi connection, will I get sound only through my computer?

If I purchase an iTunes movie and try to play it back through my computer/tv via and hdmi connection, will I get sound only through my computer?

Welcome to the Apple Community.
Only through iTunes/Quicktime and only if the TV supports HDCP.

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I'm using an HDMI cable and the Moshi adaptor to connect my Macbook Pro (2010) to my Samsung TV. The audio works great but I am not getting video. This seems to be the opposite of what others are experiencing. How can I get the video to work, too? All suggestions much appreciated.

What you have is an extended desktop, which means that what you see on the external display is a continuation of the Macbook's display. You will find that if you move the mouse off the edge of your laptop's screen it will appear on your Samsung TV's screen. You can also drag windows from one to the other.
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Kenneth E's suggestion above, to close the lid puts the laptop in what is known as 'clamshell mode'. This is a valid operating mode but relies on you having an external keyboard and mouse. Closing the lid puts the MacBook to sleep and you will need to click the mouse or tap a key to wake it up in clamshell mode for the display to appear on the external screen.
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Hi Winston,
I have Apple TV on - in the lower right corner of the iTunes - if it is this you mean.
I have also - in system settings - under Sound - marked Apple TV - and AirPlay.
Above this line is a programme called WiFi2HiFi.
Can it make some disturbances?
Is it supposed to be there or have I faulty installed it myself?

NO SOUND ATI HD 4350 hdmi connection [RESOLVED]

i have tried everything on the wiki and searches nothing in my quest to get sound working. everything else is setup and working, all sound test and drivers show the sound on yet no sound I am going crazy!!!! Trying to set up HTPC and cannot get the sound to play on samsung LCD through HDMI connection graphics card ATI 4350 drivers installed and working great... basicallly no good reason why i cant hear a freaking thing through the speakers i have double triple and quadruple check every possible setting and configuration. Any help appreciated
Last edited by walzon (2011-12-13 03:05:26)

Forgot how to check if the modules were loading but i did check at some point from a wiki i read and all were loaded. the only weird thing is that in alsomixer when i f6 and choose hdmi there are no settings just spdif also setup hdmi in alsaconf
When i set the default divice in asound.conf it no longer shows up in sound manager after reboot but it still shows no errors when i test it in terminal.
[walzon@walzon1 ~]$ cat /proc/asound/cards
0 [SB ]: HDA-Intel - HDA ATI SB
HDA ATI SB at 0xfe6f8000 irq 16
1 [HDMI ]: HDA-Intel - HDA ATI HDMI
HDA ATI HDMI at 0xfe7ec000 irq 49
[walzon@walzon1 ~]$ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: SB [HDA ATI SB], device 0: ALC892 Analog [ALC892 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: SB [HDA ATI SB], device 1: ALC892 Digital [ALC892 Digital]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: HDMI [HDA ATI HDMI], device 3: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0
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Playing WAVE '/usr/share/sounds/alsa/Front_Center.wav' : Signed 16 bit Little Endian, Rate 48000 Hz, Mono
etc/asound.conf
pcm.!default {
type hw
card 1
device 3
ctl.!default {
type hw
card 1
device 3
speaker-test 1.0.24.2
Playback device is default
Stream parameters are 48000Hz, S16_LE, 2 channels
Using 16 octaves of pink noise
Rate set to 48000Hz (requested 48000Hz)
Buffer size range from 64 to 1048576
Period size range from 32 to 524288
Using max buffer size 1048576
Periods = 4
was set period_size = 262144
was set buffer_size = 1048576
0 - Front Left
1 - Front Right

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With the cable connected to source, click to select/highlight the Intel HDMI. next click the 'Set default' button.
******Clicking the Thumbs-Up button is a way to say -Thanks!.******
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Does the ATV autodetect via HDMI that my TV is off and go into some sort of sleep mode?
It should do.
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Compaq 8510p HDMI connection to Plasma - no sound

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