MBPR 15" Mid 2012 - Right Speaker Issue

Right speaker is not functioning properly.
Noticed this recently. Hear like, the treble in the right speaker is quite high and cannot hear the sound clearly.
Any idea on how to fix this?

Unfortunately, I only backed up after the fault occurred (typically!), so my backup might be compromised; both CCC and Time Machine. If need be I will go back to a 6 month old backup and rebuild my data, or just start from scratch and re-install everything. At least I seem to still have my important data on the boot drive, it's just the OS that's screwed (perhaps).
For the time being though the machine is with Apple undergoing the extended Triage tests, so I'll wait to see if they uncover any hardware error first.
Thanks for the help.

Similar Messages

Macbook Air mid-2012 battery life issues -- a possible culprit ?

Hi all,
I've posted and followed a thread regarding diminished battery life for the mid-2012 MBA, when Mountain Lion was released. I never could fix the problem, was contacted by Apple but that didn't solve anything either.
The troubles I was (and still am) having with my MBA were :
Battery life reduced by at least 33% when I upgraded to Mountain Lion from Lion, following a firmware update.
No change when I clean installed ML.
No change when I upgraded, and then clean installed Mavericks.
My battery, after 13 months of use, had its capacity reduced to 70-80%, and has now been stable for one year at 70-80% capacity. It now lasts approximately 3 to 4 hours, and has never lasted longer than 5 hours since I upgraded to ML, which was a few weeks after the laptop was purchased...
I've tried everything that was posted on the forums, SMC resets, etc. Now to the (maybe) interesting stuff.
I stumbled today on something interesting. I was researching my issue to see if people with the same laptop, that followed the same firmware upgrade path than I did had similar issues. Long story short, a forum post led me to something interesting, located at /System/Library/Extensions/IOPlatformPluginFamily.kext/Contents/Plugins/ACPI_SM C_PlatformPlugin.kext/Contents/Resources
DISCLAIMER Whatever you do, do not try to remove / move anything in this folder.
What is interesting is that my Macbook Air has the following identifier : MacBookAir5,2. However, in the above-mentioned folder, there is no MacBookAir5_2.plist, it stops at 4_2.plist and then goes on to MBP models. Now, the question that I have is could the fact that this plist is missing be related to my battery issues ? In the sense that without this file, the kernel does not know how to properly manage the power, read the battery status / thermal sensors ?
I would really love to fix this 2-year old issue that has been plaguing my laptop ever since I purchased it.
Cheers,
Hadrien
Message was edited by: hricca
Edited to add a screenshot of the plists directory.

I leave my LithiumIon battery plugged in when near an outlet. But I use it on battery down to 40% at least once a month.
Using Coconut battery (download from macupdate.com) you see my battery is just fine after 18 months:

Macbook Pro 15" Mid 2012 - Heating up issue

I bought Macbook pro 15" mid 2012 (non-retina) one year ago. I have Mountain lion installed. I recently facing that my laptop heating up so much nearly 90 degree Celcius when I'm using iPhone, Lightroom, Photoshop applications. It seems normal like 45-55 degree celcius when I'm browsing, word, excel and other applications. I use this on table (hard surface) but still when running those applications I feel the laptop so hot. Is there any problem on those applications or problem on Mountain Lion?
There is a problem in battery I'm facing. At the beginning stage I got nearly 5.5 hrs of battery life just with browsing or with some word documents. Now I'm getting hardly 3 hrs max with the same browsing or with some word documents. I use 4 points of brightness and not so much applications running but why the battery giving so low power? I wonder will the heat damaged my battery in the recent months (3-4 months I'm facing this heating up issue).
Please all answers are welcome.

Thanks for your information about the heating issue. I'm bit relaxed now. :-)
This is the information you asked for. Do let me know is there any problem on the battery:
Charge Information:
Charge Remaining (mAh):          6805
Fully Charged:          Yes
Charging:          No
Full Charge Capacity (mAh):          7015
Health Information:
Cycle Count:          104
Condition:          Normal

MacBook Pro Mid 2012 USB 3 Issue...

Hello there! Recently I was working on a music recording production and I was using a Usb 2.0 hub on my mac. Everything was working nicely until something suddenly happened. My Hub stopped working and my Mac went shutdown. When I turned on my Mac, It didn't recognize the hub and figured out that my hub was damaged because I tested it on another Mac. But the wierd thing is that my Mac now doesn't recognize any bus powered USB 2.0 device but it recognize 2.0 devices that are plugged in a power source and also recognize Usb 3.0 devices… I would like to know if there's some explanation about this wierd thing. Thanks for your help in advance!

You can try a PRAM reset but this is probably a hardware issue that will have to be resolved at an Apple store genius bar.
http://support.apple.com/kb/ht1379
Ciao.

New Right Speaker Distortion Test

Try this:
1) Make sure Funk is set in your Sound Preference as your alert sound.
2) Go back into Safari
3) Hit Command-F
4) Type something in that is NOT on the page. Like "asdfghjkl"
5) Hit NEXT
Some or all of you will note a SERIOUS distortion. Even stranger, if you do it twice in a row, the first alert will be quiet (but distorted) and the second will be loud and distorted. If you keep hitting NEXT, it will keep staying loud. Then, if you pause for a few seconds, and try the double tap again, you get the quiet-loud pattern.
Can others confirm?

To test whether or not you have the right speaker issue, please download this sound file:
http://www.newyork-stories.com/mbp/RightSpeakerTest.m4a
This sound was created by an Apple Genius in the SoHo Store. To use it, open the file and in ITunes switch to endless loop. Then in sound settings pan left and right. In the case you have the right speaker issue you will hear a significant difference between left and right. The right speaker will sound hopelessly distorted and overdriven, whereas the left speaker will play the sound as it's supposed to be.
Also, go to apple.com and play one of the Apple commercials. Play the one with the Pie Charts, I believe it's called "Work vs. Home". Again, pan from left to right. If the right speaker is distorted you will hear that the voice of the "Mac" guy is overdriven and the music will sound awful.
Everyone who doesn't hear a difference between left and right doesn't have the problem. Also, if you are able to get rid of the distortion by putting the volume down a little, you also don't have the problem.
The right speaker issue is VERY obvious and a major pain in the ... for everything that includes low frequency voices or music with lots of bass

Macbook Pro Mid 2012: Issues with Yosemite update, graphics, and hard drive.

MacBook Pro (15-inch, Mid 2012)
Processor: 2.3 GHz Intel Core i7
Memory: 4 GB 1600 MHz DDR3
Graphics: Intel HD Graphics 4000 1024 MB
I've used 192.8 GB
Operating System: 10.10.1 (14B25) YOSEMITE UPDATE
I've been experiencing problems with my Macbook Pro shortly after the two year mark of when I've purchased it. There are a few things that are going on. I recently verified my Macintosh HD disk through disk utility and it stated in red that there was an incorrect number of file hard links & then error: This disk needs to be repaired and to restart and then press "R". However, everything before that seemed to have passed. I have everything backed up on an external hard drive and use the time machine frequently. Another thing that has been happening, usually when I'm opening one my adobe programs, is that my screen will go white for a minute along with unidentifiable pink glitchy shapes that don't move. My computer has not been running like it used to and is running slow, freezing, and periodically going white --- as I just mentioned before. I just know that something isn't it right. I've been having to restart my computer by manually pressing the power button more than I've ever had over the past two years. I always work on my computer on a hard surface in a cool area & my fans seem to behaving okay. I also recently installed the Yosemite update for the mac sometime during this past November too and noticed slower running speed, more freezing, and longer times to boot up afterwards. Please speak up if you're experiencing problems with your 2012 Macbook pro too and especially after downloading the Yosemite upgrade. I don't see how it's in any way acceptable that I should have to deal with issues pertaining to my graphics card. Sorry for this post being a little all over the place.

Hello brousch,
Thanks for using Apple Support Communities.
From your post I see that your Mac is spontaneously restarting whenever you see a certain animation on your screen. This indicates your Mac is getting a kernel panic caused by that animation. If you'd like to learn more about kernel panics, including how to troublshoot them, please take a look at the information in the link below.
OS X: When your computer spontaneously restarts or displays "Your computer restarted because of a problem." - Apple Support
Have a great weekend,
Alex H.

Did you have buggy Mavericks issue after installing on Macbook Air Mid 2012?

Before I have upgraded my OS X Mountain Lion 10.8.3 to Mavericks 10.9 it runs so smoothly and no issues or hanging that I encounter. But just this morning when I installed Mavericks, I have the following issues:
1.) When I was adding a book(pdf and epud files) in iBook, the Finder malfunctioned, coz when I browse the books to it's location so I can add some more again, the Sidebar icons disappeared and only the names left. And when I go to the location of the files using Finder, the content is nowhere to be found, just a symbol on the window’s status bar that it is loading or busy on something.
2.) When I go to the Launchpad, when I scroll to left and right to find the apps I’m looking using the touchpad, it's not as smooth as before. It tends to halt on sliding to the other groups of apps, seems like there’s a friction stopping it from sliding smoothly all the way to the next group of apps.
3.) Updating the Apps from App Store seems cumbersome like the iPhoto and iMovie, coz when the internet fails or drops its signal for a while or so, you go back and download everything again, and when you hover the mouse to see the progress of the downloaded app, it shows for example 22mb of 1gb then shifted to 300mb of 1gb then back to 22mb of 1gb then back again. It’s not accurate and going berserk.
4.) And I don't know if it is just me, but the screen profile have changed a bit coz the red color of the Power Point icon seem too red and everything that has a hint of red color seems exaggerated, it’s too bright red. I'm just not sure it might be the GUI style of the Mavericks. . .
Anyway, have any of you experienced these kinds of issues on your Macbook Air Mid 2012?
Hopefully this could be fixed and Apple would seed an update in no time.

Even on my MacBook Pro Haswell (2013) 15 inch retina with a GT 750 2gb.
The Things in Mavericks that really make me :
1. The Launchpad is buggy when i scroll to the left or right... sometimes it doesn't even respond at all.
2. Safari and Other Apps Like AppStore freez sometimes, and i need to force quit everytime, because its not           responding.
3. Bootcamp Windows 8.1 <---- NOT 8 Support (Bad Keyboard- Facetime camera- drivers,
    Icons (brightness, sound) are ugly on retina screen) + GPU Drivers i can't update (maybe that's normal).
4. iTunes is very SLOW when Scrolling the Albums (i know its 2880x1800 and that's heavy for GPU) But it's just     not a good 'Experience'.
5. Gaming its realy good on this MacBook, but please make the drivers better, i know this GT 750 GPU can do           better.

When I mirror my late 2012 mac mini to my apple tv. I only see a black screen. I have no problems if I use my mid 2012 MBPr

When I try to mirror my late 2012 macmini to my apple tv. I only see a black screen. I have no problems if I use my mid 2012 MBPr.
The mac mini is still on mavericks at present any advice welcome please. (There is no other monitor attached to the macmini would this be an issue?)
I use share screen to monitor my macmini from my MBPr
Thank you
Ken

I have solve this problem.
I plug in a usb 3.0 HDMI blackmagic capture device in to the mac mini and connected the HDMI out of the macmini to the HDMI in of the black magic.
So it thinks it has a primary screen and it now mirror this the apple tv.

Brand new to Mac and having some issues with my MBP mid 2012

I am hoping someone can offer some advice to me, I am about ready to tear my hair out. I bought a mid 2012 MBP from best buy open box for $2000, it is the model with the 750gig hard drive and 8 gigs of ram. I has Mountain Lion on it and I have done all the software upgrades. I do not have a lot of software installed on it but it does not seem to be running right. I have had it about three weeks or a month and it appeared to be running okay most of the time.
I tried putting parallels 8 on it so I could run some of my windows apps and I installed windows 8 and nothing else and it brought the laptop to a stand still it was crawling so slow I unistalled the software. The past few days I have noticed that when I open the lid and it wakes from sleep the keyboard and mouse are unresponsive for upto a minute.
However today has been the worse by far. I am trying to copy some files about 300 gigs worth from a external drive to my hard drive so I can reformat the drive and while it is copying I am not able to do anything, surf the web, use word or anything because anything I try to do locks the computer up for several minutes or I have to force quit. The voice dictation feature no longer works when I press fn twice, nothing happens at all.
Is this normal, I mean I am very disappointed that a $2000 computer cant copy some files and surf the internet or type a word doc at the same time. Do I have a bad mac or am I expecting to much????? I am a therapist and use this laptop to take and store all my client notes I bought a mac because I need something dependable and reliable.
If this is not normal what do you suggest?

That would be your best bet. There is a reason someone returned it. Most people that buy a Mac, except me, never return them. Even if they don't run right. So for someone to return that unit they either didn't care for Mac OS X (that is why I return the first 2 I had) or there was something very wrong with it.
scampbell70 wrote:
That is what I am thinking as well Shootist007. I am a best buy silver reward member and I have 60 days instead of 30 on all returns and I am thinking I may return it, pay the extra $200 and get a brand new one.

Safari hangs and poor performance in MBPR (Mid 2012)

Safari hangs and poor performance in MBPR (Mid 2012)? OS X 10.10.2 is up to date

Please answer as many of the following questions as you can. You may already have answered some of them. In that case, there's no need to repeat the answers.
Back up all data before making any changes.
Have you restarted your router and your broadband device (if they're separate) since you first noticed the problem? If not, do that now and see whether there's any change.
If your browser is Safari, then from the Safari menu bar, select
Safari ▹ Preferences... ▹ Privacy ▹ Remove All Website Data
and confirm. If the Downloads button (with the icon of a downward-pointing arrow) is showing in the toolbar, click it and then click Clear in the box that appears. The download history will be removed. Any change?
If you're running OS X 10.9 or later, select the Advanced tab in the Preferences window and uncheck the box marked
Stop plug-ins to save power
Any change?
Quit and relaunch the browser. Any change?
Enable guest logins* and log in as Guest. Don't use the Safari-only “Guest User” login created by “Find My Mac.”
While logged in as Guest, you won’t have access to any of your documents or settings. Applications will behave as if you were running them for the first time. Don’t be alarmed by this behavior; it’s normal. If you need any passwords or other personal data in order to complete the test, memorize, print, or write them down before you begin.
Test while logged in as Guest. Same problem?
After testing, log out of the guest account and, in your own account, disable it if you wish. Any files you created in the guest account will be deleted automatically when you log out of it.
*Note: If you’ve activated “Find My Mac” or FileVault, then you can’t enable the Guest account. The “Guest User” login created by “Find My Mac” is not the same. Create a new account in which to test, and delete it, including its home folder, after testing.
Are any other web browsers installed, and are they the same? What about other Internet applications, such as iTunes and the App Store?
If other browsers and Internet applications are also affected, follow these instructions and test. Any change?
If Parental Controls is active for any user, please turn it off and test. Any change?
If only Safari is affected, launch the Activity Monitor application and enter "web" (without the quotes) in the search box. If a process named "Safari Web Content" is shown in red or is using more than about 5% of a CPU, select it and force it to quit by clicking the X or Quit Process button in the toolbar of the window. There may be more than one such process. Any improvement?
Follow the instructions in this support article. Any change?
Open the iCloud preference pane and uncheck the box marked Photos, if it's checked. Any change?
Are there any other devices on the same network that can browse the Web, and are they affected?
If you can test Safari on another network, is it the same there?
If you connect to your router with Wi-Fi and you can also connect with Ethernet, do that and turn off Wi-Fi. Any difference?

My macbook pro runs slow, iTunes videos keep stuttering. Nothing has worked to solve this issue. Macbook Pro 13-inch mid 2012 2.5GHz i5 with 8GB RAM upgrade.

Hello everyone.
I have been having this issue for a few months now and nothing works to resolve it. The biggest issue is that iTunes videos constantly stutter ever few seconds, the audio portion of the video is not effected. The most I have open at once is Safari, Skype, and iTunes, and possibly Open Office. Videos will even stutter with nothing else open other than iTunes. At times it sounds like the computer is running something in the background from hard drive noise.
I even upgraded the RAM to 8GB and it still has this problem! Nothing looks wrong in Activity Monitor other than occasionally the memory usage spikes up to 6GB, but even then the memory pressure graph is green. I dont understand how these non-intensive programs can use that much. The hard drive is barely 1/3 full.
Please help with a solution as nothing has worked so far. Thanks!
Macbook pro 13-inch mid 2012
2.5GHz dual core i5
8GB DDR3 RAM
500GB HDD
Intel HD graphics 4000

Please read this whole message before doing anything.
This procedure is a diagnostic test. It won’t solve your problem. Don’t be disappointed when you find that nothing has changed after you complete it.
The purpose of this test is to determine whether the problem is localized to your user account. Enable guest logins* and log in as Guest. Don't use the Safari-only “Guest User” login created by “Find My Mac.”
While logged in as Guest, you won’t have access to any of your documents or settings. Applications will behave as if you were running them for the first time. Don’t be alarmed by this behavior; it’s normal. If you need any passwords or other personal data in order to complete the test, memorize, print, or write them down before you begin.
Test while logged in as Guest. Same problem?
After testing, log out of the guest account and, in your own account, disable it if you wish. Any files you created in the guest account will be deleted automatically when you log out of it.
*Note: If you’ve activated “Find My Mac” or FileVault in OS X 10.7 or later, then you can’t enable the Guest account. The "Guest User" login created by "Find My Mac" is not the same. Create a new account in which to test, and delete it, including its home folder, after testing.

My MBPr (mid 2012) displays a black screen on startup but when I close the lid and open after a few minutes, it seems to wake up as it should.

Can anyone advise what is going wrong on startup and what steps I can take to resolve this issue? This has been occurring for the last month or two.
The specs of this machine are:
Macbook Pro Retina (mid 2012)
OS X Mavericks 10.9.4 (13E28)
2.6GHz Intel Core i7
16GB 1600 MHz DDR3
Intel HD Graphics 4000
256GB SSD

Can anyone advise what is going wrong on startup and what steps I can take to resolve this issue? This has been occurring for the last month or two.
The specs of this machine are:
Macbook Pro Retina (mid 2012)
OS X Mavericks 10.9.4 (13E28)
2.6GHz Intel Core i7
16GB 1600 MHz DDR3
Intel HD Graphics 4000
256GB SSD

Upgraded Mid 2012 MacBook Pro RAM - Issues

Hi,
I recently upgraded the RAM on my Mid 2012 15" MacBook Pro from 4GB which it came with to 16GB. Now I checked online that 16GB was the maximum reported, stable RAM that MacBooks could run so stuck to that. For no reason other than greed, silly numbers and additional resource needed when doing some development work I went for the full 16GB. I did the check on the Crucial website and purchased myself two 8GB chips. Once they arrived in the post I fitted them and being a qualified electrical engineer working with surfcae mount stuff I made sure I did it all wih the anti-static crap for extra safety. Long story short, I seem to be getting kernel panics now and the damned thing keeps crashing. Now, I have thought about switching thw sticks about and seeing if it is just one of the sticks causing the issue.
Just wondered whether anyone else had any issues, or could provide some words of wisdom of how to check 'dodgy sticks'?
Cheers

Take a look at the specs:
http://support.apple.com/kb/sp649
and:
http://www.everymac.com/systems/apple/macbook_pro/specs/macbook-pro-core-i7-2.3- 15-mid-2012-unibody-usb3-specs.html
OWC determined that it would run with 16 GB; if I wanted to exceed Apple's recommended specs, I would absolutely stick with the company that tested the RAM and guarantees it - in this case OWC.
The usual troubleshooting is to test each module separately and/or in conjustion with one of the original modules.
Edit:
is yours one with a retina display? (If so, see the note on this page:)
http://eshop.macsales.com/shop/memory/Apple_MacBook_MacBook_Pro/Upgrade/DDR3_160 0MHz_SDRAM

HT201300 I have a MAC 10.7.5 - Mid 2012 model.....I believe it should have MAC LION including airplay on it when I purchased it.....am I right?

MAC PRO - MID 2012 MODEL - RUNNING SYSTEM 10.7.5
PLease can you help me out? I have purchased the above Mac and am under the impression that I should automatically have MOUNTAIN LION with AIRPLAY so that I can run APPLE TV from this computor - so that I can mirror my screen to the TV....am I right?
Please can you help as to why I dont have it, and how I can go about getting it?
thanks so much
from
Debbanubear

Hey there Allan,
Thanks for your kind help - when we look on the apple site - it tells us that models that are Mid 2011 and newer should have it so thats why we thought it was strange.....our model is 2012 so we assumed it would come with is.
So we need to purchase MOUNTAIN LION - is that correct?
have a nice day.
regards
Debs

Elegent solution for dual booting MBPr mid 2012

Just finished installing Windows 7 Ultimate on Mid 2012 Macbook Pro Retina 15". I'm using Command+R to switch between systems at the moment. Anyone know of a simpler more elegant method? I'd prefer to have an automatic pop-up upon start-up instead of it loading right into whichever OS was last used.

Startup – Computer restarts by itself – Yosemite

MBPR 15" Mid 2012 - Right Speaker Issue

Similar Messages

Maybe you are looking for