Jan 04, 2014 I use a new 12″ MacBook with OS X El Capitan 10.11.3. The external monitor is 2560.1080 65.9kHz. When connected using HDMI, the screen on MacBook is stable, but the bottom part on external monitor flickers/shakes. The fix above didn’t help with my issue. Does anyone have any suggestion?
Volume not working problem in new OS X EL caption? Learn how to fix sound control not working, no audio and audio related issues in Mac OS X EL Caption.
These solutions also fix the following issues
- No audio sound when playing online videos via browser like Safari, Chrome or Firefox.
- Can’t adjust speaker volumes.
- Annoying popping noise when play audio or video.
Solution No 1: Change your system output device to Internal speakers.
After upgrading to OS X EL Caption default device for sound output might changed.
Navigate to Apple Menu –> System Preferences –> Sound. Select the output device as Internal speakers or any connected external speakers.
Solution No 2: For users who use HDMI external display with sound
Lot of Mac users reported Mac OS X can’r control HDMI sound devices.
So navigate to System Preferences –>Sound. Change it from HDMI to Headphone port.
Solution No 3: Use Terminal command
Launch Terminal app from /Applications/Utilities/ folder and type the following command
Solution No 4: Change settings for internal speaker
On your Mac, navigate to Settings -> Audio -> Output and change the settings for internal speakers.
SEE ALSO :How to do “Secure Empty Trash” in OS X El Capitan (Alternative way)
Solution No 5: Enable some sound settings
Navigate to Apple Menu –> System Preferences –> Sound and tick the following check boxs
- “Play Feedback when volume is changed”
- “Show volume in menu bar”
Solution No 6: Restart your Mac computer
Restarting your computer (MacBook Pro, MacBook Air or iMac) might bring the sound back.
Solution No 7: Reset PRAM Ntfs for mac catalina crack.
- Reset your Mac – Parameter Random Access Memory (PRAM), to fix audio issues.
- Turn on your Mac system.
- Press the Power button.
- Press and hold Option+Command+P+R keys combination before gray screen appears. Hold the keys until your system restarts. Now you will hear system startup sound.
Solution No 8: Reinstall OS X EL Caption
Create bootable EL caption usb drive and reinstall Mac OS X EL Caption using bootable usb drive.
If you knew any other way to fix ” Audio issues after upgrading Mac OS X EL Capitan”, inform us via comment
Check compatibility
You can upgrade to OS X El Capitan from OS X Snow Leopard or later on any of the following Mac models. Your Mac also needs at least 2GB of memory and 8.8GB of available storage space.
MacBook introduced in 2009 or later, plus MacBook (13-inch, Aluminium, Late 2008)
MacBook Air introduced in late 2008 or later
MacBook Pro introduced in mid 2007 or later
Mac mini introduced in early 2009 or later
iMac introduced in mid 2007 or later
Mac Pro introduced in early 2008 or later
Xserve models introduced in early 2009
To find your Mac model, memory, storage space and macOS version, choose About This Mac from the Apple menu . If your Mac isn't compatible with OS X El Capitan, the installer will let you know.
Make a back-up
Before installing any upgrade, it’s a good idea to back up your Mac. Time Machine makes it simple, and other back-up methods are also available. Learn how to back up your Mac.
Get connected
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It takes time to download and install OS X, so make sure that you have a reliable Internet connection. If you’re using a Mac notebook computer, plug it into AC power.
Download OS X El Capitan
For the strongest security and latest features, find out whether you can upgrade to macOS Catalina, the latest version of macOS.
If you still need OS X El Capitan, use this link: Download OS X El Capitan. A file named InstallMacOSX.dmg will download to your Mac.
Install the macOS installer
Double-click the downloaded file to open a window showing its contents. Then double-click the file within, named InstallMacOSX.pkg.
Follow the on-screen instructions, which will guide you through the steps necessary to install.
Begin installation
After installation of the installer is complete, open the Applications folder on your Mac, then double-click the file named Install OS X El Capitan.
Office 365 for mac review. Click Continue and follow the on-screen instructions. You may find it easiest to begin installation in the evening so that it can complete overnight, if needed.
Allow installation to complete
Please allow installation to complete without putting your Mac to sleep or closing its lid. Your Mac may restart, show a progress bar or show a blank screen several times as it installs both OS X and related updates to your Mac firmware.
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Learn more
Macbook
- OS X El Capitan won't install on top of a later version of macOS, but you can erase your disc first or install on another disc.
- You can use macOS Recovery to reinstall macOS.