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ALC272X & VoodooHDA: System freezes while trying to make sound


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Hi there,

 

I bought a Acer Emachines E732ZG Laptop, and now I've running 10.7.1 & 10.7.2 on it.

Everything works fine, except for the sound:

 

Every VoodooHDA kext I use causes a loopback from the internal speakers to the mic, or the devices simply aren't listed in Systempreferences. I also tried some AppleHDA.kext, which did not work neither.

 

After opening my Lapt I found out that theres a ALC272x codec on the mobo, but theres also a HDMI device from the Radeon 5470.

 

I downloaded SystemInfo, and added the IDs to several voodoo kexts, with no success.

 

The Interesting thing is that every time I want to access sound preferences the system preferences freeze and I have to force quit. Same on youtube with Safari or songs in iTunes/ VLC or MIDI Setups.

 

 

EDIT: Well, the windows actually don't freeze, but hang up.

 

Has anyone an idea how to fix that?

Well, you won't believe it, but after trying a lot of different things I deleted voodoohda.kext so there was no sound driver on the system. Then I booted up and started iTunes and noticed that if I play a song, iTunes shows the song, but makes no signs of playing it. The time of the song remains on 0 and the 'progress bar' (you know, the bar on the top of iTunes) doesn't move either.

Same symptoms on youtube, etc..

 

well, in my opinion this seems like voodoohda isn't the problem, but something else. wtf ist the problem with my lion? frown.png

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