Built-in audio keeps disappearing - iBook G4 1.42 - what gives?

Last month I took my iBook G4 1.42 on the road and kept on getting problems with my built-in audio. I attributed this to movement, but I wasn't 100% sure. I took care of it every time by powering down, removing the battery, holding power for 10 seconds, replacing the battery, and rebooting. I don't normally need audio, but there were a few games that would stall and then exit if there was no audio output device seen in the configuration.
It's been at home for a few weeks (my wife is the primary user) and it behaved pretty well until the built-in audio wasn't seen in the configuration again. I tried the old power-down trick without the battery again, but audio wouldn't come up. The whirling icon showed up when I tried to access most of the stuff on the top bar, but eventually settled down with no audio volume icon. I then tried holding down command-option-P-R while booting to reset the PRAM. Then it booted with the Mac chine and the built-in audio was fine.
Any idea what's going on. Yesterday was the first time built-in audio disappeared when I wasn't on the road, and the first time pulling the battery and pressing power didn't solve the problem.

cornelius wrote:
ypw:
Try:
Resetting the PMU.
cornelius
Thanks for the suggestion. I think I came across the suggestion when I looked for how to reset the PRAM, but I didn't think I needed it at the time. I'll try it if the audio goes out again.

Similar Messages

Built-In Audio Devices disappeared

Greetings everyone,
I got a big audio problem.
The Built-In Audio Out and Inputs of my iMac (2011) disappeared in system preferences and i noticed the coreaudio process has high CPU usage all the time. Even force quitting isnt helping, as it restarts immediatly.
Furthermore my computer is hanging on shutdown:
If it's entering sleep mode, the display goes black but fans and HDD are still spinning, but I cannot do anything else and I have to do a hard reset. The same happens when i'm restarting or shutting down. It just won't shut off completely (I guess because of that hanging process)
I booted another OS X installation and everything worked fine, so there's clearly an error somewhere in my current OS X installation. But restoring from a Time Machine backup didnt help.
Are there any files/caches I have to move to trash or anything else to fix this problem without having to reinstall OS X once again?
Thanks.

See this link for solution.
http://discussions.apple.com/thread.jspa?threadID=807277
Thanks to the poster for answering.

Built in audio out disappeared

The built-in audio out option has disappeared from the Sound Preferences window and Digital Out is the only option. So I'm not getting any system sounds, etc. The volumn icon is greyed out, etc.
I've been using Logic and had the audio out set alternatingly for built-in and Presonus Firebox. When the FB is plugged in it shows up in all the right places.
The built-in mic still shows up, but the built-in output has vanished.
Any ideas?
TIA,
Daniel

Since discovering that the problem I was having was with that switch, I've just been careful to plug in the headphones with some firmness and then unplug it with a good quick tug and the switch has been ... switching.. reliably ever since. I'm not sure what one could do to "fix" that, and fortunately I don't seem to need to try that right now, but if you do need to get into that I'd be interested in any tips..
Best,
Daniel

HP Pavilion notebook - audio keeps disappearing a few minutes after starting pc

Hello everyone. This is my first post in this forum.
Since about a month, I've been having an annoying problem with my notebook's audio. Quite often, when I turn on my pc, my audio disappears after a couple of minutes. Sometimes there's no sound right from the start. The mute button stops working, because normally there's an orange light when you turn off the pc sound, well that doesn't happen anymore. Windows Media Player can only play such formats as mp4, avi etc with no sound in the background. However, it can't open mp3 files at all (error message shows up). Videos on websites such as youtube stop playing after a few seconds (although the buffer is still running, and of course there is no sound).
So basically, there's no type of audio coming from the speaker (like error sound, message sound, command sounds etc...)
I tried connecting headphones and external speakers, but no luck. I updated my audio driver, but it didn't help.
Furthermore, when I launch audio test from Control Panel, an error message shows up which says "Device currently used by another application. Please close all the applications that are using the device, and retry."
My notebook is quite new. It's an "HP Pavilion 15 - e070sl"
The whole thing is driving my crazy. It's really frustrating. Any suggestions would be greatly appreciated. Thanks.
This question was solved.
View Solution.

Hi
See if this thread has the solution to your problem. HP Expert Dragon-Fur has explained it & given few links for the steps of resolution:
http://h30434.www3.hp.com/t5/Notebook-PC-Sound-and-Audio/lost-sound/m-p/4231472
Regards
++Please click KUDOS / White thumb to say thanks
++Please click ACCEPT AS SOLUTION to help others, find this solution faster
**I'm a Volunteer, I do not work for HP**

Why does audio keep disappearing?

Since I installed OS X Mavericks a few days ago, my audio suddenly, unpredictably and inexplicably disappears on a regular basis.
The only solution I know of is to reboot my MacBook Air. But this is getting tedious, boring and frustrating.
Is this a Marvericks glitch? Is there a way I can cure this problem and annoyance?
Thank you.

Back up all data before making any changes.
1. If anything is plugged into the audio-out port, unplug it before putting the system to sleep.
2. If you've installed something called "Memory Clean" or any other third-party software that is supposed to "clean" or "purge" memory automatically, remove it according to the developer's instructions and reboot. You should do that even if the software is not causing the problem, because it's useless.
3. If you've installed an equalizer called "Boom" or anything similar, update or delete it and reboot.
If there's no improvement, or if you're not aware of having installed anything that fits the description, post again.

Audio keeps disappearing

I am running 4.0.5.
After putting the computer to sleep, iChat consistently loses all audio... when a message is sent or received, the prompts are inaudible.

This is a consistent problem. Anyone else seeing this..... after wake-up (Powerbook dual 2.33), the audio for iChat only is gone.

Audio settings keep reverting to the built in audio!

The audio settings will not save the particular driver settings
We are changing the audio driver from the built-in audio to the pci-424 driver, which works ok, apply changes again ok. Eveyrthing works ok. So you quit the program and relaunch and the driver reverts back to built in audio! Ok so maybe saving the project with those settings will work, nope that doesnt either! I have stripped out all the preference files, still didnt work. Removed the application and reinstalled, nope still the same! Im running logic 8 on another Macpro with a different motu interface and this doesnt have the same problem, any suggestions!!

Well it seems its related to this particular hardware. Tried installing on a machine which has been retaining the settings ok and the same thing happens, most annoying!

Built-In Audio Panning L&R malfunctions, system prefs.

I have noticed on my own Mac, as well as my peers' computers which include iBooks, PowerMacs, iMacs, and even a new MacBook pro, that the audio coming from the Built-in audio card will randomly be panned completely to the right, or the left.
A quick troubleshoot will lead you to find that in the system preferences the panning slider is set to the right or left, an undesirable setting.
All of the computers I mentioned are running the latest updated versions of Tiger, 10.4.6, and with the exception of my self running Pro Tools, none of the other computers mentioned are running any third party audio interfaces/cards or software that uses audio other than the applications included with Tiger: iTunes, iChat, Quicktime, Safari, etc.
Unfortunately there is no Lock in the audio system preferences, which could potentially be a quick fix to the problem because if an application like iChat had a bug which caused audio panning, the lock in system prefs. would prevent that..
I am quite boggled.
question:
What might be causing this, and is there a solution?

Thanks for the response guys. It seems we're in the same boat.
The problem is intermittent on my machine . It has occurred three times since I bought it. The fist time it lasted for a day and a half. I rang Apple support and went through a number of steps until the P-RAM suggestion which seemed to fix it. A few days later it disappeared again and resetting the P-RAM had no effect. My wife continued to use the computer (without sound) and some hours later it came back after a restart (she only restarted it because she is in the habit of shutting down instead of using sleep). The problem occurred again. That time I restarted the machine a number of times, with and without the external speakers plugged in, with them turned on and off etc. This had no effect. I gave up. Some time later my wife went to use the computer and it came back. I now believe that the P-RAM solution that seemed to fix the problem the first time was just a coincidence.
I rang Apple support again and they gave me the following steps (A,B & C of which I went through the first time the problem occurred):
A: Log in through another account and see if it had the same problem.
- The built-in audio was still missing.
B: Run the disk utility on the hard drive (after booting from installation DVD).
- There were nil problems on the HD, but it did not fix the problem.
C: Reset the P-RAM.
- This worked the first time though it has not worked on subsequent re-occurrences of the problem.
D: Do an Archive Reinstall.
- I did this today; though the built-in audio was working, I just wanted to complete the suggestions the Apple support person gave me. The problem has not reoccurred yet, but it has only been a few hours. I will be using the computer as much as possible tonight to see if the problem reoccurs.
If the problem reoccurs I'll be taking the machine in for warranty repairs, or better still replacement.

A few questions about audio player in iBooks Author

1. How can I set the player to a small icon in Landscape layout? It seems that I have to display the player in the Landscape layout and show a big icon (which can't be resized) in the sidebar of the Portrait layout. Is there a way to customize this?
2. I notice that the audio player in iBooks Author looks different from that in the actual iBook on iPad?
In iBooks Author it's silver, which looks pretty nice:
But in actual iBook on iPad it becomes black:
Is it possible to customize the look of the player?
3. Another problem about the player in the actual iBook on iPad: When I have multiple players on the same page, only one of them shows the progress bar and time; others just show a play button:
If I click the one which only has a play button, the whole player will disappear (and won't play the audio clip). I must click the area (which the player is supposed to be in) again, and the player will show up with the progress bar and time (and other players will only have a play button).
This is very annoying. Does anyone have the same problem?

assuming you have a MovieClip mc on stage with the registrationpoint in the center:
stage.addEventListener(MouseEvent.CLICK, zoomHandler);
var currentZoom:Number = 1;
var zoomFactor:Number = 1.1;
var maxZoom:Number = 2;
function zoomHandler(e:MouseEvent):void{
    var zoomCenter:Point = new Point(e.stageX, e.stageY);
    var mcCenter:Point = new Point(mc.x, mc.y);
    var _xCorrection:Number = mcCenter.x-zoomCenter.x;
    var _yCorrection:Number = mcCenter.y-zoomCenter.y;
currentZoom +=zoomFactor-1;
if(currentZoom<maxZoom){
    mc.scaleX +=zoomFactor-1;
    mc.scaleY +=zoomFactor-1;
    mc.x -=_xCorrection*zoomFactor*.5;
    mc.y -=_yCorrection*zoomFactor*.5;
else{
trace("maximal zoom level reached");

HT2375 Using logic 9: play back of all project files now has problems: Track volumes are way off - if panning is set to center then you cant hear that track? Even if pan is adjusted tracks are low and or distorted I have looked at core/built in audio

Been having project play back problems for about a month. Sometimes when I open a project the volume of certain tracks is low and or distorted. Oddly if a midi track is panned to the center (0) its volume is too low and if I pan right or left the track becomes louder. Sometimes this doesn't help and if it is an audio track things become distorted.
Although things have been working good for about a year now I think it has something to do with the fact that I have to take the laptop to work and use headphones/built in audio for play back and then take it home and use different audio interface but I can't be sure. The settings in preferences/audio/devises seem to be correct.
I have not added any plug-ins recently. I have not downloaded any new programs recently other than a NI tutorial video (shouldn't have any affect) but I am trying to use a new midi controller but again that shouldn't have any affect on play back of existing track?
Any suggestions?

Thank you for the replies. Everyone was correct about the jack, interface, and phasing problems. I have been unplugging my motu audio interface and then using headphones at work. I have not changed any detailed audio output settings in logic. When I read that the jack might be a problem I tried switching headphones. This actually helped. I am using dre-beats headphones and they seem to be having issues with the mac/jack-(the phasing/panning problems. I can use these headphones with other devices but not the mac. I have to use ipod ear buds and the phasing seems fixed. Hopefully this information is helpful to someone else.
If anyone knows how to correct this issue please let me know its difficult to know what my final mixes are going to sound like and I have had to keep bouncing everything into i-tunes- sync to ipod and then listen in my car radio.

Video inserted into AP Element - Audio keeps playing on rollout

Hi,
I have created an AP Element that on rollover a thumbnail video plays of the full video.
This works fine.
However on rollout, the video does disappear, but the Video Audio keeps playing.
How do I stop the Audio playing when the user rolls out of the link?

It keep playing because your rollout action doesn't specifically turn off the audio (it only makes the video invisible). It probably doesn't stop the downloading of the video either. So while the video isn't displaying, it continues to download the entire file..... not a good idea!
Depending on how you are playing the video, you'll have to devise a means of controlling the video (NOT just making it invisible).
For example:
If the player is a Flash player using NetStream, a simple ns.close(); button would work.
If a JWPlayer, you can use javascript to stop the player, something like this:
<a onclick="jwplayer().stop();"...........
I know that's an onclick event, but you should get the idea.
You'll have to adapt the principle to match your specific vid player.
To eliminate this very common video player issue, you MUST stop the video (and audio) as the very first action, BEFORE you make the video player disappear.
Best wishes,
Adninjastrator

Tab page and customization keeps disappearing

For the last two days, my tabs page and customization keep disappearing. When I open a new tab, it is completely blank, with no preloaded sites. When I try to add items such as bookmarks, home, search, adblock, etc to the address bar, they appear as if they have been added but do not appear on the page, nor do they appear after I shut down and restart Firefox. I have refreshed multiple times in the last few days. At that point, I can see the tabs page, see the settings gear, and can populate tabs, pin them etc. I can also get the customization to work. Most recently, the tab page was there, and I could see sites loaded, but the images were missing and never appeared. Sometimes when I shut down the computer, the settings are all saved, but other times they all disappear and the process starts all over again. This includes when I close Firefox with the Exit command under File rather than using the red X option.

Other users have reported problems with FoxTab recently: the reviews for it over the last 9 months are pretty blistering: [https://addons.mozilla.org/firefox/addon/foxtab/reviews/]. I don't know enough about that extension to help with that.
But regarding the built-in main toolbar, those are changes that Firefox itself should save. Our support article "[[How to fix preferences that won't save]]" covers many of the reasons that there might be glitches with that. Another common issue is utility/privacy/security software like Advanced SystemCare that has a home page protection/browser protection feature. This can roll back your changes between sessions of Firefox. You may need to disable that feature if any of your software has it.

Horrible Line Noise w/ Built in Audio Input After Update!

Something happened after the most recent LE8 update, I now have terrible line level hiss/noises when using the built-in input on my MacBook Pro. No trouble with my Firewire audio input though. The noise is really bad and records to track, making me believe that this is an input issue. I'm not positive that it's from the update but I've never had this problem before. It happens with both Logic Express and Garageband, rendering the audio input useless. Anyone else having this problem?

Thanks for the response guys. It seems we're in the same boat.
The problem is intermittent on my machine . It has occurred three times since I bought it. The fist time it lasted for a day and a half. I rang Apple support and went through a number of steps until the P-RAM suggestion which seemed to fix it. A few days later it disappeared again and resetting the P-RAM had no effect. My wife continued to use the computer (without sound) and some hours later it came back after a restart (she only restarted it because she is in the habit of shutting down instead of using sleep). The problem occurred again. That time I restarted the machine a number of times, with and without the external speakers plugged in, with them turned on and off etc. This had no effect. I gave up. Some time later my wife went to use the computer and it came back. I now believe that the P-RAM solution that seemed to fix the problem the first time was just a coincidence.
I rang Apple support again and they gave me the following steps (A,B & C of which I went through the first time the problem occurred):
A: Log in through another account and see if it had the same problem.
- The built-in audio was still missing.
B: Run the disk utility on the hard drive (after booting from installation DVD).
- There were nil problems on the HD, but it did not fix the problem.
C: Reset the P-RAM.
- This worked the first time though it has not worked on subsequent re-occurrences of the problem.
D: Do an Archive Reinstall.
- I did this today; though the built-in audio was working, I just wanted to complete the suggestions the Apple support person gave me. The problem has not reoccurred yet, but it has only been a few hours. I will be using the computer as much as possible tonight to see if the problem reoccurs.
If the problem reoccurs I'll be taking the machine in for warranty repairs, or better still replacement.

Built in Audio missing after downloading latest Security Update

Hi everyone,
My Built-in audio is missing!
Under System Profiler, it says "No built-in audio" under the Audio (built in). In System Preferences, (under Sound) no devices are available to select. When I click "Show volume in menu bar" the speaker icon appears, but as soon as I click on it, it disappears.
I've been trying different solutions I've found in the various audio posts, but nothing seems to work.
I tried CTRL OPT P R, but that didn't work. I looked in my Library -> Preferences and I don't have any sort of com.apple.audio file.
I've been putting off downloading the latest Quicktime update, because everything was working fine. I downloaded the Security Update, thought it would be "safe", restarted, and my audio disappeared. I figured what can be worse, so I updated Quicktime as well along with all the Final Cut Studio 2 updates.
Any help and advice would be greatly appreciated!
Thanks,
Erik

Thanks for your troubleshooting tips- I tried to re-install and create an archive so I wouldn't have to wipe the main drive, but there was an error creating an archive and the computer wouldn't do it. I've had the computer since October 2003 and have never had to re-install, so I decided to backup important stuff and just do a clean install.
After installing everything, I have lots of extra space on my drive and the system runs nice and quick once again.
... and audio is back too.

Bluetooth audio receiver (Belkin) causes macbook built-in audio crash

Hello. Sometime I use an Bluetooth audio receiver (some Belkin one) to transmit audio to the sound system of my house. When the macbook dont found that device, then a pop-up come sayin: "We didn't find your bluethoot audio" and there's only one option to choose and that is "Stop using bluetooth audio receiver". Then, the built-in audio of the macbook disappears since I dont know. I cant hear anything, but when you on the computer, the first sound comes out so, its not a hardware problem.... Someone can help me?
Thank you all.

I have to day more things about this issue. The problems started after I installed a NATIVE INSTRUMENTS plug-in called DRIVER. I haver searched every trace of it and erased from my HD.
Another thing regarding the issue is that when I try to open the midi configuration of the mac it suddenly crashes.
Any ideas before I take my laptop to the apple store?
THANKS. Have a wonderful 2012!!

Built-in audio keeps disappearing - iBook G4 1.42 - what gives?

Similar Messages

Maybe you are looking for