audio – Why does the volume of iMac increase alone?

I have an iMac under OS X El Capitan version 10.11.6. I have two external speakers Roland (older – maybe 2006) that leave the port / headphone jack, and with many different applications, the volume starts to increase on its own. The audio preferences are set to "headphone port" and the external speakers do not have any kind of automatic volume control – just simple volume buttons that you have to turn manually. It's very annoying because I have to constantly lower the volume.

No suggestion?

Is it worth it? MacBook Pro for iMac?

Macbook Pro late 2011 15 "
Processor 2.2 i7
512 SSD
16 RAM
Graphics card: AMD Radeon HD 6750M, 512 MB
Intel HD Graphics 3000 512 MB


iMac 2011 27 "
I5 3.1 GHz processor
4 GB of RAM
Graphics card: AMD Radeon HD 6970M 1024 MB

iMac; OS X Yosemite; The application switch continues to display without pressing –

I have a problem with an old iMac. The application selector will appear and then quickly switch between two or all icons without pressing -. It seems that moving the mouse causes the switching behavior. I have exchanged the mouse and keyboard of another Mac that is no problem. The mouse and keyboard of this mac work on the other without problem. I have disconnected all USB devices and turned off the WiFi. None of this solved the problem.

lion – imac mi 2011 install os x from a usb stick

I have a problem here, I have iMac mid-2011 with a new hard drive. I want to install mac os x el capitan from a USB drive, but when I click on the option button on my keyboard, no hard drive nor USB drive will show up. only internet recovery and wifi connection. When I try to retrieve Internet over x for os x reinstallation, there is a bone lion x but when you enter the data from my app store it is indicated that "this item is temporarily unavailable", help us. Thanks in advance

love at first sight – Using the iMac from the end of 2012 as a monitor for a PC

My old iMac slows by the day and I have a good PC on the side, but I do not want to give up the beautiful screen that works perfectly, so I would like to use it as a second monitor. Even thinking of trying hackintosh way with my PC (I have to check if I can do it with my hardware).

The iMac is late 2012 and apparently has 2 Thunderbolt ports (I think they're v2? Certainly not v3)

My pc has:

  • Asus Prime Z270-A
  • Asus Dual GeForce GTX 1070 OC 8GB GDDR5
  • Intel Core I7-7700K 4.2GHz BOX
  • Samsung SSD 850 EVO M.2 250 GB
  • Corsair Vengeance DDR4 LPX 3200 PC4-25600 16GB 2x8GB CL16

And the motherboard has a USB-C port. The graphics card does not work.

Can this be done with my configuration in any way? I am not interested in software solutions, I have tried them and they are not up to my standards.

How to reset PRAM or NVRAM on an iMac with a Bluetooth keyboard?

I have a problem with a hit in Safari. On my MacBook, I could fix it by resetting the PRAM. I do not know how to do it on an iMac with a Bluetooth keyboard. Do I really need a wired keyboard?

How to prevent the iMac from using the second monitor while using its audio?

I've connected my AV receiver to my iMac via the Thunderbolt-to-HDMI adapter but I do not have a TV connected to the receiver, which means that no screen.

The purpose of this operation was to be able to use lossless audio output, especially because Apple dropped the toslink link in the latest iMac.

On the audio part, everything works fine, but the problem comes from the fact that iMac thinks that a second screen is connected and that it bothers applications that resize windows. .

How can I prevent the iMac from using the second screen while using the HDMI output?

iMac late 2009 new ssd installation

I've read a lot of "new installations" and all are pretty much the same … use Internet recovery or cmd + r at startup.

But here is my problem.

My old hard drive crashed, so I have nothing to recover. The new ssd is installed and starts in the flashing folder? Questioning point. I can not seem to appear because the Bluetooth keyboard is not displayed. I have tried a computer keyboard without success. So I am trying to figure out how to format this new SSD file.

No suggestion?

mac – Do I need an Imac Pro for video editing, 3D composition, music composition and photo editing?

I hope I'm on the subject here. I am a filmmaker and I need a new computer. I also do things like: music composition (large libraries for MIDI with Ableton Live), photography, 3D, advanced visual effects; video editing, graphic design. Although I am not yet a full professional, I will probably be there soon. I am currently working with Full HD video, but soon I will be using videos in 4k format or higher.

Is the new Imac Pro the computer for me?

IMac Target Display Mode – Request different

Have you tried all the steps recommended by Apple?

Use target view mode

Follow these steps to start using your iMac as a screen:

1 Make sure your iMac is turned on and the other Mac is connected to a macOS user account.
2 Connect the Mini DisplayPort or Thunderbolt cable between the two computers.
3 Press Command-F2 on the keyboard of the iMac you want to use as the screen.

After pressing Command-F2, your iMac displays the desktop from the connected Mac.

If Command-F2 does not work

If your iMac does not switch to target display mode when you press Command-F2, check the following:

• Make sure that the iMac you are trying to use as the display supports the target display mode.
• The target display mode only works when your main Mac is connected to a macOS user account. For example, if your first Mac is at the FileVault login screen, pressing Command-F2 on your iMac does not activate the target display mode. You must first connect to your Mac (with the help of a normal screen, if necessary) before you can use an iMac in target display mode.
• Make sure to press Command-F2 on the keyboard connected to the iMac you want to use as the screen.
• In Keyboard System Preferences, if the checkbox is enabled for "Use all F1, F2, etc., as standard function keys", the key combination becomes Command-Fn-F2.
• Make sure your Mini DisplayPort or Thunderbolt cable is connected to both computers.
• If you are currently connected to the iMac that you want to use as a display, try disconnecting to return to the login window. Then press Command-F2 again.
• Some older Apple keyboards and third-party keyboards may not allow Command-F2 to switch between display modes. If this happens, use the keyboard that came with your iMac to enable or disable the target display mode.
• If your iMac is currently booted on Windows, it will not go into target display mode. Target display mode is not supported in Boot Camp.