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macbook pro 2012 no sound - Apple Community
https://discussions.apple.com/thread/4936345
1. System Preference > Sound > Output > Internal Speakers 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 PRAM. http://support.apple.com/kb/PH4405 4.
Mountain Lion update now NO SOUND - Mac-Forums
https://www.mac-forums.com/threads/mountain-lion-update-now-no-sound.280348/
Try holding Option and clicking the audio/speaker icon this will list all possible audio outputs. The ticked one is where your audio is currently going to. Click on Internal Speakers to select them (assuming it's not those selected already) OP N Newtomachav4s Well-known member Joined Nov 5, 2011 Messages 48 Reaction score 0 Points 6 Jul 27, 2012 #3
Mac OS X Mountain Lion Installer
https://support.apple.com/kb/DL2076?locale=en_US
Mac OS X 10.8 Mountain Lion is available for older systems that are not compatible with the latest version of macOS and requires the following: ... MacBook Pro (Mid/Late 2007 or newer) MacBook Air (Late 2008 or newer) Mac mini (Early 2009 or newer) Mac Pro (Early 2008 or newer)
Apple Makes OS X Lion and Mountain Lion Free to …
https://www.macrumors.com/2021/06/30/os-x-lion-mountain-lion-free-to-download/
Mac OS X Mountain Lion is compatible with the following Macs: iMac (Mid 2007-2020) MacBook (Late 2008 Aluminum, or Early 2009 or newer) MacBook Pro (Mid/Late 2007 or newer) MacBook Air (Late 2008 ...
OS X Mountain Lion - Apple
https://www.apple.com/shop/product/D6377Z/A/os-x-mountain-lion
OS X Mountain Lion is available now as a download from the Mac App Store. Just click the Mac App Store icon in your dock, purchase Mountain Lion, and follow the onscreen instructions to install it. Mountain Lion will not only make your Mac work better, it also makes your Mac work even better with your iPhone, iPad, and iPod touch. Because it comes with iCloud, your mail, …
MacOS – Unable to get Intel HD 4000 graphics and audio ...
https://itectec.com/askdifferent/macos-unable-to-get-intel-hd-4000-graphics-and-audio-working-on-efi-install-of-windows-10-bootcamp-on-macbook-pro-mid-2012/
There is no sound from the speakers or headphones. Device manager shows "This device cannot start. (Code 10)" for High Definition Audio Controller. After reading around in other forums, the audio issue could be related to Intel graphics drivers. I am unable properly install the integrated Intel HD 4000 graphics drivers also.
*GUIDE* Mountain Lion on OLD UNSUPPORTED MACS! | …
https://forums.macrumors.com/threads/guide-mountain-lion-on-old-unsupported-macs.1325818/
MacBook 2007 MacBook2,1 MacBook 2008 MacBook3,1 Mac Pro 2006 MacPro1,1 (kext not required) Mac Pro 2007 MacPro2,1 (kext not required) For ATI graphics card, i do not have a Mac to test them, I...
How To Install Mountain Lion On Macbook Pro From Usb ...
https://neeness.com/how-to-install-mountain-lion-on-macbook-pro-from-usb/
How do I force my MacBook Pro to boot from USB? Press and hold the “Option” key when you hear the startup sounds—this will bring you to the Startup Manager. Once the Startup Manager appears, you can release the Option key. Startup Manager will then start scanning your device for drives it can boot from, including your USB.
Late 2013 MacBook Pro - Downgrade to Mountain Lion ...
https://forums.macrumors.com/threads/late-2013-macbook-pro-downgrade-to-mountain-lion.1663406/
Basically I'd like to stick with Mountain Lion till these issues are resolved. you're in luck - that's my machine and ableton live is my day-to …
Sound stuttering after Mountain Lion installation - CNET
https://www.cnet.com/tech/computing/sound-stuttering-after-mountain-lion-installation/
Aug. 9, 2012 9:32 a.m. PT A few users who have upgraded to OS X Mountain Lion are noticing what appears to be a bug involving sound processing on their systems. When the problem occurs, the Mac's...
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