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0

I see the same issue, it looks like a bug. It impacts both Chrome and Safari. I found if I change the account profile settings to allow it to administer, it will start working again. Not a great long-term solution, but hopefully Apple will patch it soon.


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You can swipe over to the accessories desktop and dim the display. In mavericks, the grey grid is pretty dark on its own and you can just remove the accessories. In yosemite, setting your desktop to a solid black background, swiping over, removing all accessories, and dimming the display makes it pretty dark.


0

Mine was showing a black screen after I updated my iMac to Yosemite. I unplugged my USB mouse and the new Login screen was displayed. No restart was necessary.


0

If I move the hard drive back into the iMac, everything is fine. The partitions are there accessible as before. It must have something to do with the controller of the external case. I guess the only option now is to: Copy the contents onto another storage. Build the HDD out of the iMac and into the external case. Format the HDD in the external case (just ...


0

If you're running antivirus software, you may wish to try disabling it and downloading your updates from the App Store again. If that doesn't work, try downloading the combo update from here: http://support.apple.com/kb/DL1760 You may find that this works where downloading from the App Store fails.


0

You may try this: https://github.com/Eun/DisableMonitor It adds the missing feature to disable a monitor. Easily disable, enable or change the resolution of a monitor.


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Register as an Apple Developer for free with your Apple ID, search for Bluetooth Explorer on this page. After you installed the app you can plug in your Bluetooth dongle and open the app. Press CMD + L and pick your Bluetooth dongle from the list. Reboot your Mac and you're good to go.. This worked for me, I'm using a 2010 iMac with a Trust Bluetooth 4.0 ...


0

The mid-2011 iMac uses 4 - 204-pin PC3-10600 (1333 MHz) DDR3 SO-DIMM, so it seems that you've purchased the correct memory. The most likely cause of the problems you're seeing are improperly inserted- or faulty RAM. It can help to blow out the memory slots with compressed air and ensure that the RAM does not have grease or grime on any of the contacts prior ...


-1

If you have MacKeeper installed, get rid of it. That'll do it.


1

Your iMac is acts as a screen only, not as a bluetooth hub. You need to pair your devices to your main laptop only, and get a cheap keyboard for your iMac who's only purpose will be to kick it in target display mode as you described. To re-pair Apple input devices: Mouse / Magic Trackpad: hold "clicked" while turning on 10- 15 seconds BT keyboard: hold ...


0

Frustratingly, Apple bluetooth peripherals can only be paired with one Mac. If a device is already paired with a different Mac, they will not even show as pairing options on a different Mac. This makes it appear as if they are not working, but in fact, they are working as designed. If you have your mouse and keyboard paired with your iMac, and then attached ...



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