Low freq cuff on Macbook Pro (13") 2011

Hi guys , I've got a problem with my macbook pro (2011 ) .
When I listen a song with iTunes or I watch a video on youtube usig flash player , the central speacker 8 the subwoofer ) cut off and i listen on from the two stereo specker ( the left and the right one ) .
I went to an Apple center but they aren't able to reproduce the problem .
I have try to reistall Lion , and erase all my data ( also the iTunes library ) but the problems remains .
How can I solve this issue ?...

that's normal - your current charge capacity changes all the time.
if you check it today and check it again tomorrow, it will be different.
just use your macbook normally.......
watching videos will cause your battery to discharge quicker than just browsing the web.
anything running in the backgound will also make your battery lose charge quicker.
why not leave your macbook plugged in and use it once in a while under it's own power and charge it back up once it's down to 75%.
it will not harm your macbook and battery if you leave it plugged in since the charging system will stop once you reach 100%.
good luck

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Macbook pro mid 2011 battery lasting only 3 hours

How can I get my brand new Macbook pro mid 2011 battery to last longer, now it's lasting only 3 hours.

Do not believe the advertised specs from any manufacturer regarding battery life. In the real world expect about 60% to 70% of those figures. Battery life is influenced by many factors, Among these are display brightness, the number and type of applications you are running, if the optical drive is used, external devices that may be attached etc.
3 hours seems a bit low but not necessarily out of line. Go to SYSTEM PROFILER>POWER and see what it says by 'Condition'. If it is other than 'normal' you may have battery issues (Explanations then can be found in FINDER>HELP).
Ciao.

Both Internal hard drives fail on Macbook Pro late-2011

Both internal hard drives (SSD and HDD) failed on Macbook Pro late-2011.
Setup: MBP closed with Thunderbolt display attached.
Problem on HDD-A
I called Apple Support to log an issue with my MBP2011. The system is made up of 2 drives - SSD (128GB) and HDD with 2 partitions HDD-A and HDD-B(original 750GB).
HDD-A has LionOSX 10.7 and HDD-B is storage. SSD has LionOSX on it as well. I normally boot HDD-A.
I was working on HDD-A and the Kernel Panic screen appeared prompting me to shutdown the machine and start it up again.
I tried to reboot HDD-A and the grey progress bar appeared for a long time. I then forced shutdown and rebooted into SSD.
I was able to boot from SSD and then I opened Disk Utility to check the drives. I verified the disk for HDD-A and there was an error. I then tried to repair disk and it couldn't repair it. A dialogue said the disk could not be repaired and that data should be backed up.
HDD-A was not visible in Finder but HDD-B was accessible.
I verified HDD-B and it was "ok".
I shutdown, booted from SSD, disk utility HDD-A and the same message occurred.
I called Apple Support and they advised that I boot from my external HDD which was a clone of HDD-A.
Solution
I was successfully able to boot from the Clone HDD-A.
HDD-A was able to be accessed and I could retrieve the files from HDD-A.
I copied over the latest files from HDD-A to an external drive.
Same Problem on SSD
Boot from SSD, i started working for about 3 hours, with the lid closed, and attached to the ACD.
Kernel Panic screen happened again on the SSD.
Couldn't boot boot from either SSD or HDD-A.
I booted from Cloned HDD-A, Disk Utility verify and repair returned errors on SSD. The same issue had occurred on the second drive.
Disk Recovery from a boot recovery USB thumb, Disk Utility, erased SSD, verify was ok.
Tried to install then there was an install error saying that SSD was damaged (large triangle warning icon). Tried 3 times, failed.
Boot from Recovery Drive HDD-A, downloaded LionOSX.
Next steps
Format HDD-A and HDD-B into 2 partitions
Install LionOSX on HDD A.
Note:
I did not do any software updates for about a week before 14.04.2012 and suspect it might be due to the virus.
I normally work with the lid closed and attached to the ACD, I also suspect that overheating caused both drives to fail. However, I have been using this system with the lid closed for atleast a week. One Kernel Panic screen occured.

Depending on what you are doing on the computer, how hard you are working the computer, it should not overheat. And if it does it should shut down or get very slow because when it starts to overheat the CPU will be throttled back to a lower Ghz speed and or just shut down so it doesn't cause damage to the CPU. The Kernel Panics are a sign that something else is going on. This could be software or hardware.
If after wiping the drives and reinstall Lion on the SSD if the system is running OK then the drives are fine, IE they are not bad. There is something else corrupting them. Again this could be hardware or software, but I doubt it is heat. And using the MBP ion clamshell mode should not cause overheating or excessive heating of either of the drives.
Have you installed iStat Pro or Menu and kept and eye on the temps? If not install iStat Pro and keep and eye on the temps. I bet they do not get above the 150°- 180°F mark which although hot is not overheating.
Be very careful when calling Apple. Removing the DVD drive and installing a hard drive in that bay could void your warranty. The DVD is not a User Removable part and Apple frowns on doing that. So if you call them do not mention that you have replaced the DVD drive with another HDD.
Honestly I suspect you have a hardware problem. But the only way to know that is to install just Lion and your basic programs and run the system. Leave out any AV type software, if you are running some. If you don't get any kernel panics thenn install some of your other software, one programm at a time. If with just the OS and basic software you get a kernel panic then it is hardware related and needs to be checked out by Apple. If you do that re-install the DVD and the original HDD with just the OS on it before you take it in.

My japanese macbook pro (late 2011) physical keyboard does not match with the on screen japanese keyboard in windows 8.1 so does caps lock

I am using windows 8.1 pro on my Japanese macbook pro (Late 2011) and enabled japanese language but the problem is that when i press caps lock (lower left corner) it changes the input method from english to japanese. I checked my on screen keyboard (OSK) in windows and its different from my physical keyboard i.e. keys are different on my physical keyboard compared to OSK. Can anyone help me?
Thanks
Tenadona

Can I suggest the following articles, which are worth reviewing?
Boot Camp: About keyboards and key assignment for Microsoft Windows - Apple Support
Boot Camp: Apple Wireless Keyboard keyboard mapping in Windows - Apple Support
Boot Camp: Windows commands on an Apple keyboard
Windows does require language packs to be installed, if you want the physical keyboard to match the on-screen keyboard.

MacBook Pro late 2011 screen goes blank and needs shutdown and superdrive spins 3 times before ejecting discs

Hi everyone,
I have a big problem with my MacBook Pro late 2011, suddenly while working without connecting the charger and it is 100% charged the screen would go black and I would need to hold the power button to shut it down and then power it up again, The second issue is the superdrive whenever I use a disc it spins it for 3 times before ejecting it to me, tried resetting PRAM and tried re-installing mac os x mavericks, but no solution so far and about the superdrive I bought a cleaner disc and tried to insert it, the superdrive would spin it 3 times and ejects it after that. Saw the disk permission solution and tried it once and I think there is a problem with that because this is the second time I try it and it was saying that there were problems.
Sorry for being long.
Thanks in advance.

Depending on what you are doing on the computer, how hard you are working the computer, it should not overheat. And if it does it should shut down or get very slow because when it starts to overheat the CPU will be throttled back to a lower Ghz speed and or just shut down so it doesn't cause damage to the CPU. The Kernel Panics are a sign that something else is going on. This could be software or hardware.
If after wiping the drives and reinstall Lion on the SSD if the system is running OK then the drives are fine, IE they are not bad. There is something else corrupting them. Again this could be hardware or software, but I doubt it is heat. And using the MBP ion clamshell mode should not cause overheating or excessive heating of either of the drives.
Have you installed iStat Pro or Menu and kept and eye on the temps? If not install iStat Pro and keep and eye on the temps. I bet they do not get above the 150°- 180°F mark which although hot is not overheating.
Be very careful when calling Apple. Removing the DVD drive and installing a hard drive in that bay could void your warranty. The DVD is not a User Removable part and Apple frowns on doing that. So if you call them do not mention that you have replaced the DVD drive with another HDD.
Honestly I suspect you have a hardware problem. But the only way to know that is to install just Lion and your basic programs and run the system. Leave out any AV type software, if you are running some. If you don't get any kernel panics thenn install some of your other software, one programm at a time. If with just the OS and basic software you get a kernel panic then it is hardware related and needs to be checked out by Apple. If you do that re-install the DVD and the original HDD with just the OS on it before you take it in.

Hi, i am badly in need of help. i partitioned my mac hd yesterday and now the boot camp is nt working as i was using win 7 on it. i am using macbook pro 13'' 2011. plz help me. anxiously waiting for response... specially from "Christopher"

hi, i am badly in need of help. i partitioned my mac hd yesterday and now the boot camp is nt working as i was using win 7 on it. i am using macbook pro 13'' 2011. plz help me. anxiously waiting for response... specially from "Christopher murphy"

you can't add or mofidy partition numbers. especially not if and once you have windows installed.
boot from Windows 7 DVD afterwards
but first you have to tell us and Christopher what and how you partitioned your system.
Successful setup of OS X Lion + Data Partition + Bootcamp Win7 Ult
https://discussions.apple.com/thread/3293948
So after many, many hours I think I've finally figured out how to successfully setup Mac OS X Lion on one partition, a seperate data partition, and Windows 7 Ultimate on a Bootcamp partition . Here is a screenshot of my setup on my 13" MacBook Pro
Thread with suggestions on Windows backup methods:
https://discussions.apple.com/thread/3798090
Paragon CampTune
Paragon CampTune is a commercial product that is designed expressly for this task. http://www.paragon-software.com/home/camptune/ It consists of a downloadable ISO that needs to be burned to a disc and booted from in order to resize the partitions costs US$19.95.
Securing Dual-System Configuration
Imaging is still the most affordable and robust way to secure computer data. Unfortunately Mac OS X backs up only HFS+ volumes, leaving Windows with dual-system configurations unsecured. You can permanently lose all of your data unless you have a Windows-compatible backup solution.
Paragon’s CampTune and Paragon’s Drive Copy for Mac can secure the entire dual-system configuration. CampTune creates traditional images of volumes or entire hard disks, Drive Copy can copy them to other disks. In case of an emergency, you can restore the previously created image or copy all your data back to its original state.
GParted Live
GParted Live is similar to CampTune as it is also distributed as a bootable image that needs to be copied to a CD/DVD or USB flash drive. As free and open source software, distributed under the GPL, it will always be available free. Since it has more functions than CampTune, it may be harder for folks who are not as experienced with partitioning hard drives. http://gparted.sourceforge.net/
iPartition
Coriolis Systems' iPartition is a £29.95 ($44.95 US) utility that runs in Mac OS X and allows resizing of all of the relevant partition formats, including HFS+, FAT32, and NTFS. It provides a Mac-oriented user interface that may be easier to manage than some of the free utilities. As it is not capable of resizing the boot disk, it requires a bootable external disk or a boot DVD. (A tool to create a boot DVD is included.)
Paragon Partition Manager
From the makes of CampTune is a commercial tool that is similar in functionality to GParted Live, but has a more polished/friendly user interface than GParted Live. Previously only the US$79.95 Professional version supported all the features required for this, but as of version 11 the US$39.95 Personal version has also been reported to work. http://www.paragon-software.com/home/pm-personal/
Winclone/Disk Utility
Winclone is a free tool for creating and restoring backup images of your Windows partition. One of its key features is that it can restore to a larger partition than the one the image was created from.
NOTE: Winclone has been discontinued, but for now remains available and capable of completing these tasks (including creating and restoring Windows 7 images).
Winclone updated to support Lion Winclone updates and download
Disk Utility can resize HFS+ (Mac OS) partitions, but is currently incapable of resizing NTFS partitions, so you could use it to reduce the size of the HFS+ partition and create a new larger placeholder MS-DOS (FAT) partition
The full process would be:
Backup Windows partition with Winclone.
(if the new Windows partition is smaller than the old one make sure you set the preferences in Winclone to save the image as an uncompressed dmg)
Delete old Windows partition
Resize current Mac Partition
Create new Windows partition as MS-DOS (FAT) in free space after Mac OS partition.
(If the new Windows partition is smaller than the old one an additional step is required: shrink the filesystem on the image by selecting Tools->Shrink Windows (NTFS) Filesystem)
Reboot your computer for the new Windows partition to mount properly (winclone may not restore if you don't reboot)
Restore Winclone partition over new Windows partition
An alternate Winclone based process is described in the External Guides section
Native OS utilities
MR user Kazyua reports that you can use the disk management utilities provided with the current operating systems if you want to do it manually. Windows 7 and OS X both have partition resizing functions built in. In OS X, open Disk Utility and manually shrink the mac HFS+ partition by dragging the lower right corner. Then in windows go to the start menu and type "disk management" into the search box then hit enter. You should get an overview of the drives you have and the individual partitions. Right-clicking on the partition gives an "Extend Volume" option. The Windows NTFS volume should then be extended into the free space you created with Disk Utility. This method has not worked for other users, so try at your own risk.
Resizing under VMWare Fusion
If you are looking to allocate more space to Windows under VMWare please refer to the following thread http://forums.macrumors.com/showthread.php?t=828182
From http://guides.macrumors.com/Extend/Resize_Boot_Camp_Partition
Thread with suggestions on Windows backup methods:
https://discussions.apple.com/thread/3798090

EXACTLY what cable(s) do I need to connect my MacBook Pro (early 2011) to an external display with a 2560x1440 resolution?

I am trying to connect my MacBook Pro (early 2011 w/ Intel HD 3000/ 384Mb) to an external display with a 2560x1440 resolution. Specifically, what cable/connections do I need to display at this resolution? I cannot get the display to work using a "Thunderbolt to HDMI" or a "Thunderbolt to DVI" connector. Note: I used both older and newer (uni-directional) HDMI cables on the first config, and a Dual-link DVI cable on the second config. Apple specs state this is possible ( support.apple.com/kb/SP619 ), but I am at a loss as to how this can be done. Thanks in advance for the help!

You use a Mini DisplayPort to either HDMI or dual-link DVI adapter. If that component doesn't work, something's wrong with either the cable or something else in the connection.
(112855)

13" MacBook Pro (Early 2011) doesn't detect display over mini DisplayPort HDMI adapter in Mountain Lion 10.8.2

Hi to all.
I have a problem connecting external display (Dell U2311H) to my 13" MacBook Pro (Early 2011).
I use Tecklink Mini DasplayPort to HDMI adapter (http://www.techlink.uk.com/products/wires_cables/wiresmedia/wiresmedia_media/wir esmedia_mini_displayport_plug_to_hdmi_plug), but since U2311H doesn't have HDMI input, I also use Manhattan DisplayPort to HDMI Adapter (http://www.manhattan-products.com/en-US/products/8101-displayport-adapter).
And nothing.
The display is not detected, no picture or even external monitor presence at all.
I even reset PRAM, and installed 10.8.2 Supplementary update.
I also plugged and unplugged all I could, with no luck.
As I can see on Apple discussion, it is a common problem with 2011 MacBook Pro's.
It seems like the problem is in Thundebolt port, it somehow does not work properly.
If anyone has solved such ploblem, please let me know.

In reply to my own post have to say appologies to Apple whose Thunderbold port I used to blame.
Shame on me)
So, what was my problem?
Guess what?
Manhattan DisplayPort to HDMI Adapter !
The point is it's actually do only what it said to do, converts DP to HDMI.
But I for some reason thought it can be used vice versa, to be HDMI to DP converter))
I was wrong.
I bought new one HDMI to DVI adapter and now I HAVE external display!
Thunderbolt works like a charm.
So I'm very satisfied now.

What is the problem with 15-inch Macbook Pro model 2011 after connecting to TV with HDMI chord?

Today we connected a 15-inch Macbook Pro model 2011 with HDMI chord to an Insigna Television. We plugged and unplugged couple of times. But recently the macbook pro is having technical issues. The following symptoms are:
1. Macbook pro turns on and off
2. The screen stays blue and keeps loading but does not load to the desktop so you can't access to anywhere
3. The screen sometimes becomes fuzzy and the apple logo that shows before it loads to the desktop is fuzzy
4. Sometimes fuzzy lines appear on the screen like you see on television when there's a bad signal
5. The screen stays blue
6. Sometimes little specks appear on the screen
Only thing we did was turn it off and restart but it still leads to the same symptoms above.
Does anyone have any clue what caused this problem? I am guessing it is due to the connection to the HDMI chord, since we didn't turn the macbook on and off when we plugged it, rather we just unplugged and plugged the chord while the macbook is running.
Another theory might be watching movies from an online source but the first theory seems to make more sense.
We scheduled a meeting with the genius bar tomorrow but does anyone might have any clue? And also any ideas how to fix this? This is an emergency because there are important files on the macbook we didn't back up and we hope the files are safe and we need to use the macbook ASAP. Let us know anything that might have caused this and/or any solutions or help. That would be appreciated and thank you.

Hey there! Welcome to the Discrete GPU issue clube ... post your relate here >>> 2011 MacBook Pro and Discrete Graphics Card
And for GOD SAKE! Call Apple to tell them that you're another user with such problem ... that action can improve a future recall. BTW the fix price for your problem is around U$ 1000,00 ... that's the meaning of the recall attempt

MacBook Pro Early 2011 - Airplay Mirroring only sends audio to Apple TV 2nd Gen

Ok, I'm stumped by this one. I have a 15" MBP Early 2011 edition and an Apple TV 2nd Gen. Airplay Mirroring from my MBP to Apple TV only transmits the audio -- the MBP will resize the screen like it's connected to a 16:9 device, and Apple TV will show a black screen like it's about to pick up the video signal, but no video transmits. A couple of times, video started transmitting, but it was about 30 seconds delayed (?!) and extremely choppy. Both devices are connected wirelessly to a Linksys router with 5 GHz (wireless N) capabilities. The router has been configured to Apple's recommendations for Airplay Mirroring.
A little more about my MacBook Pro:
Early 2011 Model ID: MacBookPro8,2
OS: 10.8.2 Mountain Lion
CPU: Intel Core i7
Processor Speed:          2 GHz
Number of Processors:          1
Total Number of Cores:          4
L2 Cache (per Core):          256 KB
L3 Cache:          6 MB
Memory: 4 GB
GPU: AMD Radeon HD 6490M, VRAM 256 MB Total
This problem is driving me crazy! Airplay works flawlessly between my iPhone 5 and Apple TV, but not with a much more powerful laptop. Also, I tried Mirroring from a friend's 13" MacBook Pro, and it did the same thing.
Any suggestions, tips, ideas, etc. to get this working is appreciated!

Rudegar wrote:
your macbook dont support airplay mirror
He has an Early-2011 MacBook Pro, which does meet the requirements. The issue is that it is running OS X 10.7.5 and needs to be upgraded to Mountain Lion to use mirroring.

Connecting my MacBook Pro (early 2011) to my Sony LCD TV (KDL-46XBR6) and listening to Multichannel surround sound.

Dear all,
I am attempting to connect my MacBook Pro (early 2011) to my Sony LCD TV (KDL-46XBR6) via the Mini DisplayPort to HDMI. I have successfully connected the two devices and can select "SONY TV XV" in the sound preference pane. I can see and hear what I'd like, however, I can only monitor the sound in 2 channel stereo. I have my TV connected to a Sony 7.1 audio receiver via an optical cable and can monitor 7.1 sound via other sources (Blu-ray, broadcast, etc). When I go into the Audio Midi Setup utility, I am unable to configure my speakers to be anything but 2 channel stereo. I am given the options for "2ch-16bit", "2ch-20bit", "2ch-24bit" and "Encoded Digital Audio". When I select "Encoded Digital Audio", my output automatically changes to Built-in Output. Has anyone been able to successfully resolve this issue? Thanks for all your help!
Gregg

You should also ask this in the MacBook Pro forum. This is the forum for the 13” white and black plastic MacBooks that were discontinued in 2010. You should also post this question there to increase your chances of getting an answer.
https://discussions.apple.com/community/notebooks/macbook_pro

Connecting my MacBook Pro (early 2011) to my Sony LCD TV (KDL-46XBR6) via the Mini DisplayPort and listening to Multichannel surround sound.

Dear all,
I am attempting to connect my MacBook Pro (early 2011) to my Sony LCD TV (KDL-46XBR6) via the Mini DisplayPort to HDMI. I have successfully connected the two devices and can select "SONY TV XV" in the sound preference pane. I can see and hear what I'd like, however, I can only monitor the sound in 2 channel stereo. I have my TV connected to a Sony 7.1 audio receiver via an optical cable and can monitor 7.1 sound via other sources (Blu-ray, broadcast, etc). When I go into the Audio Midi Setup utility, I am unable to configure my speakers to be anything but 2 channel stereo. I am given the options for "2ch-16bit", "2ch-20bit", "2ch-24bit" and "Encoded Digital Audio". When I select "Encoded Digital Audio", my output automatically changes to Built-in Output. Has anyone been able to successfully resolve this issue? Thanks for all your help!
Gregg

I have tested it with the Moshi (http://store.apple.com/us/product/H1824ZM/A/moshi-mini-dp-to-hdmi-adapter-with-a udio-support) and Belkin (http://store.apple.com/us/product/HA342ZM/A/belkin-mini-displayport-to-hdmi-adap ter) adapters, both purchased from the Apple Store with no such luck. Have you or anyone else had success with any other third-party adapters?

After upgrading to yosemite my macbook pro late 2011 does a random sound from time to time.

After upgrading to yosemite my macbook pro late 2011 does a random sound from time to time. Its completely random and i already checked all apps in use and its not from them.

Sounds like Notifications app.
Maybe some other app. In SystemPreferences->Users&Groups->LoginItems tab: remove all entries with the minus sign underneath. This will not uninstall anything, you have to start those apps by hand now. Restart.
Still there?
Yes: Restart again while holding the shift key, this will start the mac in SafeMode: only the necessary items are loaded to run.
Still there?
Yes: Make an etrecheck list and post it here.
No: Restart, put the items in the LoginItems back, one by one, restart after each entry, and you will find the "culprit"
Please report accordingly. I will be back in 24 hours.

MacBook Pro late 2011; stuck on bootscreen.

My MacBook Pro is stuck on the boot screen. I've tried starting in safe mode, resetting PRAM during start up, resetting SMC, pressing option during boot to get to the recovery disk... Everything just leads me back to staring at e gray screen with the apple logo and spinning spiral.
During the safe mode boot, it takes around 10 minutes before the progress bar shows up at the bottom of the screen...but then in less than a minute before the progress bar completes...it just disappears completely from the screen and I'm left staring at the screen with the spinning circle and apple logo only again.
At this point, I don't care about my files on my macbook... I just want to be able to start up my laptop again. I'm starting college this weekend so this is really bad timing.
Also, prior to this incident...my macbook has been lagging a lot for the past month or so. I've never installed any excess programs or downloaded any movies, etc. I still have a lot of room on my HD. At one point my desktop was really messy and filled with icons, but I had since cleaned it up...fixed permissions, cleaned caches, done all of that. But it had still continued to show the rainbow spiral ball every so often and lagged immensely. I had also updated all available software updates. Finally today the rainbow spiral became so stuck that I had forced shut down the laptop by pressing the power button and when I tried to restart again... This boot problem has persisted,
PLEASE HELP!!!

My 2011 MacBook Pro is dead after just about 2 years. Malfunctions like screen blurring, freeze and distortion happened, can't even boot and enter the system now. This universal issue is caused by the GPU of MacBook Pro Early 2011! Apple should start an quality investigation and do a recall on all these flawed models! I've shared my experience here: mbp2011 dot com
Join us and comment on the page if you have encounter the same issue! We are trying everything we can so apple cannot ignore this.

Restoring dual boot os - windows 7 on MacBook Pro year 2011

Hi, I have a question to ask, I bought MacBook Pro in 2011, and extended the warranty till year 2015. I wish to send my MacBook back to apple service center to restore my windows os. Forgot to mention, dual boot os is window 7 and default Mac OS. So is it possible to do so? Thanks. Any charges? The MacBook still under warranty.

Where did you extend the warranty on a 2011 MBP to 2015?
It is my understanding that Apple will only extend the warranty for a total of three years which would make it 2014 rather then 2015.
As far as the Apple Service Center fixing BootCamp goes, you will need to discuss that with them. We have no connection to them what so ever and can't speak for them.
Allan

Low freq cuff on Macbook Pro (13") 2011

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