No sounds on my macbook pro, it works only resetting PRAM
Hi,
a few days ago, my MacBook Pro 13" early 2011 (OSX Lion) became mute. I can't change volume level; nothing happens when I press F11 or F12 key, only the volume icon with a prohibition symbol. But if I try to restart my MacBook resetting PRAM (Cmd+Alt+P+R), the audio returns.
I tried to launch a copy of Lion in my USB disk but there all works normally without need to reset PRAM.
At startup I always hear the chime sound, even if I start normally or resetting PRAM.
I suppose that the problem was the installation of Adobe CS6, but removing the suite doesn't changed anything.
Any suggestions?
Thanks
Nicola
I don't know why, but last night I left my Macbook in standby mode and today, when I reboot many times without resetting PRAM, all works normally!
If new problems will arise I'll tell you. Thank you anyway for your reply!
Nicola
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thanks all.Try a SMC reset and see if it will charge.
http://support.apple.com/kb/HT3964http://support.apple.com/kb/HT3964
You may want to check the info below before, then after the SMC reset.
You can click on the Apple logo in the menu bar holding the option key and click on system information, select power in the left side bar under the Battery Info and check the battery condition and if it is charging, and other stats. Then pull the charger and see what it says. -
The sound on my macbook pro is not working
The sound on my macbook pro is not working. When I increase the sound, the icon appears as if everything is working, but no sound comes from the speakers. Earphones don't work either. I have tried a PRAM reset but at times, this doesn't even work. It's really frustrating having to restart my computer every time I want the sound to work, and even when I do that, theres a 50 50 chance of it working again. It generally happens after my laptop goes to sleep and I wake it up. Has anyone else had this problem and fixed it or even know what caused it?
There are a lot of discussions around the earphone jack but I have checked that. I've tried a PRAM reset which hasn't worked, and my sound output is set to Internal speakers.
HELP!!Hopefully one of these steps should solve the problem.
1. System Preference > Sound > Output > Internal Speakers
Highlight Internal Speakers / Headphones
Make sure Mute is not enabled.
2. Remove the headphone.
If you see red light in the headphone port, plug the headphone
in and out of the port 5 or 6 times to flip the microswitch inside.
Sound output may be stuck in the digital mode.
3. Reset SMC. http://support.apple.com/kb/HT3964
Choose the method for:
"Resetting SMC on portables with a battery you should not remove on your own".
4. Applications > Utilities > Audio MIDI Setup
Audio Devices window
Side Bar
Click the Built-in Output.
Under Mute any of the boxes checked? If so, uncheck it. -
The Sound On My MacBook Pro Isn't Working
The sound on my MacBook Pro is usually fine, but today it didn't work. For example, I tried listening to music on iTunes and watch videos but the volume wouldn't work at all. When I go to turn up the volume, it seems to turn up ok, but when I try to put on some music, it doesn't work at all. I then tried using my brother's Apple headphones on my MacBook Pro, and then the sound worked normally. I really would like this fixed so if someone could help me that would be great, because I don't want to keep using my brother's headphones just to watch a video or listen to music. Thank you to anyone who helps!
Hey
I did a NVRAM reset, and nothing happened. The sound stayed the same. Whats an audio output port, where can you find it, and where can you find the red light? When I try turning up the volume, instead of turning it up a cross sign appears under the speaker, thus no volume turns up. The menu bar right at the top of the screen - the speaker icon is not black, but more a very light grey.
Thanks for helping though! -
The sound on my Macbook Pro does not work.
The sound on my Macbook Pro does not work. When we press the volume buttons, the sound icon pops up, but the bar is full with a small "Does not work" circle below it, and nothing happens when I hit volume up or done. I went into system preferences, but there aren't any options there that I can see to change it.
"Unfortunately, it doesn't provide any help for a MacBook Pro, other than indicating to call Apple Support" (sic).
Au contraire. TS1574's title and affected products are thusly:
"Troubleshooting issues with no audio from built-in speakers on Macs
Products Affected Mac mini, MacBook, MacBook Pro, iMac"
As a result, the instructions of the article are relevant. To be sure, follow those steps, the last of which is to contact Apple.
So, by way of reminder, here are the steps to troubleshoot the audio on your MacBook Pro. There is no red light, so the port is likely fine. Headphones work, so clearly your sound card is fine.
1. Ensure an incorrect version of OS X is not installed. If one is, then reinstall or erase/install after backing up your data.
2. Remove any external audio devices from USB, firewire, etc.
3. Open Sys Prefs > Sound > Output
If Internal Speakers is listed, select it and test again.
If Digital Out is listed, confirm again that all external audio devices and cables have been removed.
If mute is selected, unselect it.
If the volume slider is low, raise the volume.
If the above simply doesn't fix it, the issue may be a corrupted plist. Apple Support might be able to help troubleshoot the issue further, per the last step of TS1574.
I hope it gets resolved for you. Good luck. -
The sound on my macbook pro will not project anything if I plug in headphones I can hear but when I take them out and try and turn up the volue the speaker is grey and the bars under it are white with a no volume sign ( circle with a line through it) how do I fix this ?
Hopefully one of these steps should solve the problem.
1. System Preference > Sound > Output > Internal Speakers
Highlight Internal Speakers
Make sure that Mute is not enabled.
2. Remove the headphone.
If you see red light in the headphone port, plug the headphone
in and out of the port 5 or 6 times to flip the microswitch inside.
Sound output may be stuck in the digital mode.
3. Reset PRAM. http://support.apple.com/kb/PH4405
4. Reset SMC. http://support.apple.com/kb/HT3964
Choose the method for:
"Resetting SMC on portables with a battery you should not remove on your own".
5. Applications > Utilities > Audio MIDI Setup
Audio Devices window
Side Bar
Click the Built-in Output.
Under Mute any of the boxes checked? If so, uncheck it.
6. System Preferences > Sound> Sound Effects
Play sound effects through:
Select "Internal speakers" and then back to "Selected sound output device". -
How do I get facetime on a MacBook Pro to work? I keep getting a " server encountered problem during registration.." message. I have FaceTime ver. 1.1.1
ThanksIcapper wrote:
I will end up getting something other than Logitech speakers, since I'm just weird like that.
Your not weird, your a audiophile.
https://en.wikipedia.org/wiki/Audiophile
Good sound costs money. And with a 5.1 system your usually doing surround sound decoding for BlueRay movies etc. for home theater purposes.
The PC 5.1 surround sound systems require a audio card in a PC tower and mainly used for playing 3D games so that won't work for any Mac at all. So don't buy a PC 5.1 surround sound system for your Mac.
Harmon Kardon has the GoPlay, it's a portable stereo with awesome sound (not as good as their theater systems) and you can hook up a analog male/male stereo mini cable to it from the Mac.
$200 and it has a iPod dock and also takes like 8 batteries so it's portable.
http://www.amazon.com/dp/B002GHBTNC
There is also the Bose Wave clock/radio, you will need a stereo mini to RCA break out cable for that.
http://www.bose.com/controller?url=/shop_online/wave_systems/index.jsp
The GoPlay has much better sound than the Bose, I think the Bose are overpriced. -
The sound on my Macbook doesn't work.
The sound of my MacBook Pro 15" Retina just works at the startup screen. I can control the volume on startup screen but when I login I can't hear any sound from my MacBook even I plug headphones or speakers in.
Go step by step and test.
1. System Preference > Sound > Output > Internal Speakers
Highlight Internal Speakers.
Make sure that Mute is not enabled.
2.Plug in and remove the headphone.
If you see red light in the headphone port, plug the headphone
in and out of the port 5 or 6 times to flip the microswitch inside.
Sound output may be stuck in the digital mode.
3. Reset PRAM. http://support.apple.com/kb/PH4405
4. Reset SMC. http://support.apple.com/kb/HT3964
Choose the method for:
"Resetting SMC on portables with a battery you should not remove on your own".
5. Applications > Utilities > Audio MIDI Setup
Audio Devices window
Side Bar
Click the Built-in Output.
Under Mute any of the boxes checked? If so, uncheck it. -
I am getting no sound on my macbook pro. The sound does not play when I plug in headphones either. I have tried making it louder quieter, restarting my computer, HELP!
There are many possible causes for this issue. Take each of the following steps that you haven't already tried.
1. Start with the steps recommended in this support article. Don't skip any of the steps. It's the starting point for further efforts to solve the problem.
2. If your model has an audio-out (headphone) port, and anything is plugged in, unplug it before putting the system to sleep.
3. 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.
4. If you've installed an equalizer called "Boom" or anything similar, update or delete it and reboot.
5. If an AirPlay device is selected for sound output from iTunes (or from other applications via third-party software such as "Airfoil"), deselect it.
6. Launch the application "Audio MIDI Setup" by entering the first few letters of its name in a Spotlight search and selecting it in the results (it should be at the top.) Select the Output tab. If the Mute boxes are checked, uncheck them. Move the Volume sliders all the way to the right.
7. If a red light is coming from the audio-out port, the internal switch is stuck in the position for digital output. You may be able to free it by inserting and removing a mini-stereo jack of the proper size. Inserting any kind of tool in the port may cause damage that won't be covered by your warranty.
If there's no red light, the switch may still be stuck in the headphone position. Try to free it the same way.
8. Disconnect all wired peripherals except keyboard and mouse, if applicable. If more than one display is connected, disconnect all extra ones. Reboot and test.
9. Boot in safe mode. Don't log in; just reboot as usual when the login screen appears. When you do, make sure the words "Safe Boot" do not appear in the login screen. If they do, the system is still in safe mode and sound won't work.
10. Reset the NVRAM.
11. Reset the SMC.
12. Reinstall OS X after backing up all data. For a possible shortcut, see this thread.
13. Make a "Genius" appointment at an Apple Store. -
my built-in isight camera will still not work on my macbook pro after completing smc reset. The green light comes on but no video.
Any Suggestions?Restart the computer.
-
My keyboard plugs into the back of my display monitor it does not work? but when I plug the keyboard into my MacBook Pro it works fine? is it my display Monitor?
Try:
- Resetting the iPod:
Reset iPod touch: Press and hold the On/Off Sleep/Wake button and the Home
button at the same time for at least ten seconds, until the Apple logo appears.
- Resetting network settings: Setting>General>Reset>Reset Network Settings -
I have plugged a portable battery to the USB and my macbook pro stopped working after that, right before it shut down there was a message on the screen that said something like " USB device is withdrawing so much power, please disconnect and connect again?
if the device I connected have caused this, shouldn't the macbook itself have some type of protection that should prevent this from happening.
because when I took it to an apple certified maintenance shop, the guy said that now it could only run while connected to the power. it won't run on batteries. and that I have to change the motherboard.
can I just replace the damaged part only, would apple consider this as a design issue and they could pay for it, or should I just buy a new motherboard for 800$.
Help.BB1B2,
The problem is in finding a tech shop that will/can do board level repairs on Macs. They are few. And I certainly wouldn't spend $800 on a new logic board - I would replace the computer if I had to pay that much!
You could call around to a few repair shops and see if they feel competent to isolate the problem and do a board level repair - but I'm afraid, in the end, that your search will be futile.
Sorry,
Clinton -
My USB port on my Macbook Pro stopped working and i tried the SMC reset and the one closest to the SD port still continues to not work. Is there anything i can do besides bringing it in?
I would do another SMC reset. If nothing changes you should take the computer in to an Apple store for a free diagnostic. You should make an appointment.
http://www.apple.com/retail/geniusbar/
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