New To Mac-Forums?

Welcome to our community! Join the discussion today by registering your FREE account. If you have any problems with the registration process, please contact us!

Get your questions answered by community gurus Advice and insight from world-class Apple enthusiasts Exclusive access to members-only contests, giveaways and deals

Join today!

 
Start a Discussion
 

Mac-Forums Brief

Subscribe to Mac-Forums Brief to receive special offers from Mac-Forums partners and sponsors

Join the conversation RSS
Apple Notebooks Apple's notebook computers including MacBook Pro, MacBook, MacBook Air, PowerBook, and iBook.

MacBook Pro - 'No output devices found' - no sound!


Post Reply New Thread Subscribe

 
Thread Tools
doopie

 
Member Since: Dec 15, 2007
Location: Berlin / Germany
Posts: 5
doopie is on a distinguished road
Mac Specs: MacBook Pro, 2.4GHz, Leopard

doopie is offline
Hi everyone,

so I got my MacBook Pro (Leopard) a few weeks ago and since a few days I have the following problem. After I used earplugs and removed them to continue using the loudspeakers everything worked fine, but ever since I restarted I'm not able to play any sound, I also can't change the volume:
mac3.png

So after lots of reboots I tried to look up the Preferences, but it just simply says 'No output devices found'. As well as for input as for output...
mac2.png

Garageband also doesn't work, telling me 'Selected driver not found'.
mac1.png

I tried to google my problem, but I couldn't find any answer that helps me...

Ah by the way, the loudspeakers do play the booting sound (when the Apple logo appears)! So they work, I guess they just can't be recognized.

Alright, have nice (quiet?! ) weekend!
QUOTE Thanks
Lifeisabeach

 
Lifeisabeach's Avatar
 
Member Since: Sep 30, 2007
Location: Wilmington, NC
Posts: 6,890
Lifeisabeach has a reputation beyond reputeLifeisabeach has a reputation beyond reputeLifeisabeach has a reputation beyond reputeLifeisabeach has a reputation beyond reputeLifeisabeach has a reputation beyond reputeLifeisabeach has a reputation beyond reputeLifeisabeach has a reputation beyond reputeLifeisabeach has a reputation beyond reputeLifeisabeach has a reputation beyond reputeLifeisabeach has a reputation beyond reputeLifeisabeach has a reputation beyond repute
Mac Specs: iMac i3 (mid-2010) + OS 10.9; TV 3; iPhone 5S; iPad 4

Lifeisabeach is offline
Does this happen with all user accounts or just yours? Did you install anything between the time it last worked and when it stopped?
QUOTE Thanks
Lifeisabeach

 
Lifeisabeach's Avatar
 
Member Since: Sep 30, 2007
Location: Wilmington, NC
Posts: 6,890
Lifeisabeach has a reputation beyond reputeLifeisabeach has a reputation beyond reputeLifeisabeach has a reputation beyond reputeLifeisabeach has a reputation beyond reputeLifeisabeach has a reputation beyond reputeLifeisabeach has a reputation beyond reputeLifeisabeach has a reputation beyond reputeLifeisabeach has a reputation beyond reputeLifeisabeach has a reputation beyond reputeLifeisabeach has a reputation beyond reputeLifeisabeach has a reputation beyond repute
Mac Specs: iMac i3 (mid-2010) + OS 10.9; TV 3; iPhone 5S; iPad 4

Lifeisabeach is offline
I just learned something interesting that might help here. I earlier read about booting OS X into "safe mode" by holding down the SHIFT key, so I was just experimenting with that to see exactly what happens as a possible aid in troubleshooting. Well lo and behold... booting in safe mode gave me the exact same issue you are having. Not only are 3rd-party programs not loading (as I expected), but the audio drivers aren't either. So... this leads me to wonder if you are booting in safe mode in error, perhaps you have a SHIFT key stuck?
QUOTE Thanks
louishen

 
louishen's Avatar
 
Member Since: Oct 22, 2007
Location: London
Posts: 8,940
louishen has a brilliant futurelouishen has a brilliant futurelouishen has a brilliant futurelouishen has a brilliant futurelouishen has a brilliant futurelouishen has a brilliant futurelouishen has a brilliant futurelouishen has a brilliant futurelouishen has a brilliant futurelouishen has a brilliant futurelouishen has a brilliant future
Mac Specs: Mac Mini Core i7 2012 | White 2009 MacBook 2 Ghz | 733 Mhz G4 Quicksilver

louishen is offline
If lifeisabeach is right it should say Safe Mode when booting up
QUOTE Thanks
doopie

 
Member Since: Dec 15, 2007
Location: Berlin / Germany
Posts: 5
doopie is on a distinguished road
Mac Specs: MacBook Pro, 2.4GHz, Leopard

doopie is offline
Thank you for your answers.
I tried using/creating different users. Doesn't help :-(
I didn't install anything - the computer might have crashed though and that's probably why i rebooted...
My Shift Key works - and everything else works too, so it's definitely not the Safe Mode. I'll try booting in the safe mode though
QUOTE Thanks
dtravis7

 
dtravis7's Avatar
 
Member Since: Jan 04, 2005
Location: Modesto, Ca.
Posts: 27,534
dtravis7 has a reputation beyond reputedtravis7 has a reputation beyond reputedtravis7 has a reputation beyond reputedtravis7 has a reputation beyond reputedtravis7 has a reputation beyond reputedtravis7 has a reputation beyond reputedtravis7 has a reputation beyond reputedtravis7 has a reputation beyond reputedtravis7 has a reputation beyond reputedtravis7 has a reputation beyond reputedtravis7 has a reputation beyond repute
Mac Specs: iMac 2.4 C2D 10.9.4, iMac 2.16 C2d 10.6.8, Macbook2007 10.8.4, Mac Mini 10.8.4, iPhone 3GS Note 8!!

dtravis7 is offline
I am curious about one thing, If you look into the Jack where your headphones or external speakers plug in, do you see a RED Light?
QUOTE Thanks
doopie

 
Member Since: Dec 15, 2007
Location: Berlin / Germany
Posts: 5
doopie is on a distinguished road
Mac Specs: MacBook Pro, 2.4GHz, Leopard

doopie is offline
no there is no red led, the thing is though that i never saw a red light coming out the jack, even when the sound still worked
QUOTE Thanks
Lifeisabeach

 
Lifeisabeach's Avatar
 
Member Since: Sep 30, 2007
Location: Wilmington, NC
Posts: 6,890
Lifeisabeach has a reputation beyond reputeLifeisabeach has a reputation beyond reputeLifeisabeach has a reputation beyond reputeLifeisabeach has a reputation beyond reputeLifeisabeach has a reputation beyond reputeLifeisabeach has a reputation beyond reputeLifeisabeach has a reputation beyond reputeLifeisabeach has a reputation beyond reputeLifeisabeach has a reputation beyond reputeLifeisabeach has a reputation beyond reputeLifeisabeach has a reputation beyond repute
Mac Specs: iMac i3 (mid-2010) + OS 10.9; TV 3; iPhone 5S; iPad 4

Lifeisabeach is offline
Quote:
Originally Posted by doopie View Post
Thank you for your answers.
I tried using/creating different users. Doesn't help :-(
I didn't install anything - the computer might have crashed though and that's probably why i rebooted...
My Shift Key works - and everything else works too, so it's definitely not the Safe Mode. I'll try booting in the safe mode though
Well you may be booting into Safe Mode as a result of some problem from that "possible" crash and not realize it. I've found that all apps listed in my Login Items still load.... it's just stuff that's loaded/located in the Library that doesn't load, or so it seems. Just take a look at the progress meter when booting and be sure it doesn't say "Safe Mode" under the meter. That's the only sure sign I can see that says Safe Mode is being used. If you are used to Windows' Safe Mode, then it's easy to get thrown off because Windows throws all kinds of warnings at you, notes on the screen, display resolution skewed, and so forth and on and on...

Barring that... did you delete anything from the Library folder or one of its subfolders by chance?
QUOTE Thanks
doopie

 
Member Since: Dec 15, 2007
Location: Berlin / Germany
Posts: 5
doopie is on a distinguished road
Mac Specs: MacBook Pro, 2.4GHz, Leopard

doopie is offline
no it doesn't say safe mode...
i tried booting in safe mode though, holding down the shift key while booting, but it just got stuck on the booting screen (with progress meter) and i had to restart.
QUOTE Thanks
doopie

 
Member Since: Dec 15, 2007
Location: Berlin / Germany
Posts: 5
doopie is on a distinguished road
Mac Specs: MacBook Pro, 2.4GHz, Leopard

doopie is offline
alright problem fixed...
i was just about to reinstall everything, when mac asked me to do one of those automatic software updates. after restarting the sound suddenly worked!?!

anyways, thank you to everyone who tried to help me
QUOTE Thanks
fourshizzle

 
Member Since: Dec 24, 2007
Posts: 1
fourshizzle is on a distinguished road

fourshizzle is offline
I actually have this problem with my mac pro.....

I had headphones plugged in and now there are no input devices found except the headphones , No internal speakers or anything else found in Output devices..I have reset the P R a couple times, tryed restarts and what not...nothing has worked, still red light where head phones plug in and nothing has helped......pleasssee help me
QUOTE Thanks
EverPresentHero

 
EverPresentHero's Avatar
 
Member Since: Nov 05, 2007
Posts: 2
EverPresentHero is on a distinguished road

EverPresentHero is offline
I have a Macbook and I have the same exact problems as the original post. I tried updating the software and it didn't work! All I did was close my laptop for an hour and next time I picked it up, the only audio devices it had was my bluetooth headset! I am probably going to backup everything on my external and do a hard reboot because I don't have time for this! It seems like the day my apple care was over I have had problem after problem!

Help!
QUOTE Thanks
ILL

 
Member Since: Oct 23, 2008
Posts: 1
ILL is on a distinguished road

ILL is offline
I had the exact same thing as the topic starter. Macbook Pro (15" model with trackpad, and 4GB RAM). Only I didn't have the start-up sound when I rebooted, so no sound at all.

My MBP had a little drop of the couch wich might've triggered the condition, although I'm not sure. It was just a little bump on the side where you can insert DVD's and it could've been I already didn't have sound before that but didn't notice because I mute my sound often.

The exact same images as the topicstarter posted aplied to my MBP.

Restart, update software, restart again.. again.. again.. didn't solve anything.

What did work for me was to run Apple Hardware Test (restart while keepin 'D' on the keyboard pressed. The test didn't find any problems. I restarted the computer and I noticed the sound icon in the right top corner was back again. iTunes also worked again, internal speakers . Then plugged in my headphones and to my surprise wasn't recognized. Restarted the MBP again and now it does recognize the headphones again, and everything seems to be back to normal. I ran this test a few days after I didn't have sound anymore, I was about to call service when I found out about this this test in the manual.
QUOTE Thanks
oreste191

 
Member Since: Oct 24, 2008
Posts: 1
oreste191 is on a distinguished road

oreste191 is offline
i love how everyone feels like they have to say that they are having the same problem yet provide no answer. clearly we are all here for the same reason no need to repost the same stupid problem over and over.

if have an old power book g4 and it has to do with the bios and the battery. i guess if your battery is not holding its charge it affect the entire computer. unplug the battery and restart the computer. if that doesnt work restart like i did. unplug the power cable causing the computer to shutdown. that did the trick.
QUOTE Thanks
luispo

 
Member Since: Dec 05, 2008
Posts: 1
luispo is on a distinguished road

luispo is offline
Macriot has the solution:

macriot - Apple Hardware | The Fix For No Sound From Your MacBook Pro or iPhone

Contributed by "Mac":
<quote>
For MacBook Pro owners this is commonly characterised by:

* the internal speakers still chime when your Mac is powered on
* a 'no parking' like symbol appearing below the sound icon whenever you attempt to manipulate the volume on your Mac
* the red light that continues to emanate from the audio output port
* only "Digital audio out" as the only output source displayed in the Sound pane of the System Preferences.

If you have these symptoms, we recommend a very gentle and minute tinkle of WD-40 into the audio output jack, followed by gently inserting and removing the audio input jack a few times. At least until the sound is returned to normal and red light ceases to glow from the audio output jack.

Remember, we said "tinkle" not spraying into the jack like there's no tomorrow...

Following the steps above will give you a good chance of restoring your internal audio.

</quote>

This worked for me; doubtless, there had been dust or smear or something else polluting the macintosh perfection. Everything else people are doing is incidental and only coincidentally will have effect. Sorry, but this is a mechanical issue, not a software one.
QUOTE Thanks

Post Reply New Thread Subscribe


« 15 macbook pro keyboard not lit completely | Ram gets used up fast before restarting. »
Thread Tools

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off
Forum Jump

Similar Threads
Thread
Thread Starter
Forum
Replies
Last Post
Sound Card joe.morgan Apple Desktops 4 01-04-2007 04:28 PM
iMac G5 Sound Output Device question mint_mac_mini Apple Desktops 0 01-03-2006 07:02 PM
G4 Firewire Devices not found Mister E Other Hardware and Peripherals 4 06-12-2005 06:11 AM
Uneven sound output through headphones jessica Apple Notebooks 5 05-23-2005 12:27 PM
Sound output masterfinish OS X - Operating System 0 11-19-2003 07:04 PM

All times are GMT -4. The time now is 05:13 AM.

Powered by vBulletin
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
X

Welcome to Mac-Forums.com

Create your username to jump into the discussion!

New members like you have made this community the ultimate source for your Mac since 2003!


(4 digit year)

Already a member?