No Audio

vinny. · Jan 10, 2013, 06:24 AM

I have a 2007 Mac pro,
2x dual core xeon, lion 10.7, NVIDIA GeForce 7300 GT 256MB, 24gb ram, 250gb ssd, 3tb sata hdd.

I have had no audio now for a few weeks, it first happened when I tried updating my graphics card to a gtx 560 graphics card, so I thought this was the problem, so I downgraded back to the GeForce 7300 GT and reinstalled lion 10.7, (before that I had updated to 10.7.5, many people also complained about no audio with this update), so I reinstalled lion to 10.7 hoping this might fix it, but it doesn't. I have reinstalled to factory settings, resetted pram settings, resetting smc settings, tried booting in safe mode, I have repaired disk permissions, I have verified disk permissions, on all disks. I don't know what else to do.

headphones dont work, built in audio doesnt work, external speakers don't work.

my computer works fine in every other way, but the audio won't work.

Has anyone got any ideas?

All Taken · Jan 10, 2013, 06:48 AM

Does a device plugged into the headphone jack at the front of the tower get detected as headphones in system preferences?

vinny. · Jan 14, 2013, 07:34 AM

no nothing gets detected, it only happened when updating to 10.7.5 the first time, but now I have reinstalled lion to 10.7 and still no change.

666sheep · Jan 14, 2013, 08:11 AM

Reset PRAM should help if it isn't hardware issue. If it didn't... you can try to hold keys until third reboot.

shoulin333 · Jan 14, 2013, 08:17 AM

with ML did you check the audio sound output device? maybe it was defaulting to AirPlay?

vinny. · Jan 15, 2013, 08:13 AM

Quote:

Originally Posted by shoulin333

with ML did you check the audio sound output device? maybe it was defaulting to AirPlay?

I already said it does not detect any sound device, internal or external, so there is no airplay or speaker or headphone or anything..

I don't have mountain lion, mountain lion is not compatible with my computer, i have lion 10.7.

(attached is pic of what it looks like in system pref)

vinny. · Jan 15, 2013, 08:18 AM

Quote:

Originally Posted by 666sheep

Reset PRAM should help if it isn't hardware issue. If it didn't... you can try to hold keys until third reboot.

I have tried this a few times, its doesn't change anything. Maybe its hardware issue, but it was working fine before I updated lion the first time. seems a bit of a coincidence.

666sheep · Jan 15, 2013, 08:53 AM

Quote:

Originally Posted by vinny.

I have reinstalled to factory settings

Do you mean 10.4?

GermanyChris · Jan 15, 2013, 12:58 PM

Quote:

Originally Posted by vinny.

I have tried this a few times, its doesn't change anything. Maybe its hardware issue, but it was working fine before I updated lion the first time. seems a bit of a coincidence.

It's funny on 10.6 I was getting cutout I upgraded to 10.7 und alles normal

OrangeSVTguy · Jan 17, 2013, 09:43 PM

Quote:

Originally Posted by vinny.

I have a 2007 Mac pro,
2x dual core xeon, lion 10.7, NVIDIA GeForce 7300 GT 256MB, 24gb ram, 250gb ssd, 3tb sata hdd.

I have had no audio now for a few weeks, it first happened when I tried updating my graphics card to a gtx 560 graphics card, so I thought this was the problem, so I downgraded back to the GeForce 7300 GT and reinstalled lion 10.7, (before that I had updated to 10.7.5, many people also complained about no audio with this update), so I reinstalled lion to 10.7 hoping this might fix it, but it doesn't. I have reinstalled to factory settings, resetted pram settings, resetting smc settings, tried booting in safe mode, I have repaired disk permissions, I have verified disk permissions, on all disks. I don't know what else to do.

headphones dont work, built in audio doesnt work, external speakers don't work.

my computer works fine in every other way, but the audio won't work.

Has anyone got any ideas?

As already mentioned. Reset the PRAM. I had the same issue and pram reset fixed it. Actually had the problem a few times and the pram reset gets the audio back.

vinny. · Jan 18, 2013, 03:32 PM

Quote:

Originally Posted by OrangeSVTguy

As already mentioned. Reset the PRAM. I had the same issue and pram reset fixed it. Actually had the problem a few times and the pram reset gets the audio back.

As I have already said a bunch of times, I have tried this, quite a few times, 2 x chimes and 3 x chimes and 4 x chimes, but nothing worked.

I finally got an answer from someone who's a friend of a friend and makes hackintosh's, he told me to delete the all hd extension plugins in library - system - extensions, and for some reason it worked, even though before this I did an erase and install, I guess there is something wrong with the extensions in lion or something.

Jan 10, 2013, 06:24 AM	#1
vinny. macrumors newbie Join Date: Nov 2012	No Audio I have a 2007 Mac pro, 2x dual core xeon, lion 10.7, NVIDIA GeForce 7300 GT 256MB, 24gb ram, 250gb ssd, 3tb sata hdd. I have had no audio now for a few weeks, it first happened when I tried updating my graphics card to a gtx 560 graphics card, so I thought this was the problem, so I downgraded back to the GeForce 7300 GT and reinstalled lion 10.7, (before that I had updated to 10.7.5, many people also complained about no audio with this update), so I reinstalled lion to 10.7 hoping this might fix it, but it doesn't. I have reinstalled to factory settings, resetted pram settings, resetting smc settings, tried booting in safe mode, I have repaired disk permissions, I have verified disk permissions, on all disks. I don't know what else to do. headphones dont work, built in audio doesnt work, external speakers don't work. my computer works fine in every other way, but the audio won't work. Has anyone got any ideas?
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Jan 10, 2013, 06:48 AM	#2
All Taken macrumors 6502a Join Date: Dec 2009 Location: UK	Does a device plugged into the headphone jack at the front of the tower get detected as headphones in system preferences? __________________ 27" - 21.5" iMac SSD UPGRADE TUTORIAL
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Jan 14, 2013, 08:17 AM	#5
shoulin333 macrumors 6502a Join Date: Jun 2007 Location: California	with ML did you check the audio sound output device? maybe it was defaulting to AirPlay? Attached Thumbnails __________________ 27" iMac - Mid 2011 iPhone 4 - 16gb Black(Verizon)
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Jan 14, 2013, 07:34 AM	#3
vinny. Thread Starter macrumors newbie Join Date: Nov 2012	no nothing gets detected, it only happened when updating to 10.7.5 the first time, but now I have reinstalled lion to 10.7 and still no change.
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Jan 14, 2013, 08:11 AM	#4
666sheep macrumors 68020 Join Date: Dec 2009 Location: Poland	Reset PRAM should help if it isn't hardware issue. If it didn't... you can try to hold keys until third reboot.
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