iMac, a range of all-in-one Macintosh desktop computers from Apple

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1
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1answer
8k views

iMac won't restart after upgrade to Yosemite

Just made the upgrade to Yosemite but now my iMac wont restart or shut down. Whenever I try to do any of these it stays on a black screen with a mouse pointer, and I have to turn it off and back on ...
0
votes
2answers
57 views

Cannot login to OS X 10.9 because password field disappears after clicking username

I didn't add or do anything to computer except reboot. When the login screen appeared with my user account I clicked it as usual and the password box briefly appears and then disappears stopping me ...
-4
votes
0answers
13 views

Work iMac and personal iPhone Issues [on hold]

Work iMac and personal iPhone are having major issues. I need help figuring out where the problem is coming from, so we can isolate it. Please help!!! I ran a command line on my mac for my default ...
2
votes
1answer
3k views

Wireless keyboard/mouse problem with iMac during start-up

I have an iMac 21.5" (late November 2010, OS X 10.6.8 with latest updates). I bought a wireless keyboard and mouse at same time. When I started up with ⇧ shift or ⌥ alt/option key down, the computer ...
1
vote
2answers
24 views

iMac 27" late 2012 SSD upgrade

I'm the proud owner of an 27-inch iMac 2012 with high-end configuration, but the 1TB fusion drive keeps being the bottleneck. As my warranty has expired now, I want to upgrade the 128GB SSD to a ...
3
votes
0answers
22 views

iMac Crashes kernel Panic

I have an iMac, and always crashing almost everyday. Can you please point me out to the right direction? Below is the Report after it had crashed. I Have already reverted to factory settings. no ...
0
votes
0answers
313 views

Reinstall Thunderbolt Firmware on a 27" iMac Late-2012

I have a consistent issue with the "Thunderbolt Firmware Update 1.2" showing up endlessly in the App Store, but more importantly, after installing it earlier today, my Thunderbolt ports no longer ...
0
votes
1answer
2k views

Problems with Internet connection on my Mac - Gmail, calendar and Skype work but some websites will not open

I am using OS X Yosemite version 10.10 on my iMac. For about a week now, I've had problems with my Internet connection. I am connected via ethernet. I can use Gmail, Skype and Google Calendar without ...
2
votes
3answers
1k views

iMac + uTorrent energy saving

I want to keep my iMac on tonight and seed/leech torrents. I usually leave it there until, after 5/10 min or so, the iMac turn the monitor off. I can still hear the hd working. uTorrent has an option ...
0
votes
0answers
14 views

iMac 5K able to fully restored after power loss

This afternoon, a thunderstorm cause my house's circuit breaker to cut off all the power of my house, my iMac was in sleep mode, I then unplug the power cord from power outlet of my iMac just for ...
0
votes
2answers
5k views

Can't download Google Chrome on my Mac!

I'm on the page http://google.com/chrome/browser/desktop/index.html There is a large blue button "Download Chrome" and below it "For Mac OS X 10.6 or later". I click on the button. Result: the whole ...
3
votes
2answers
3k views

Magic Mouse Gesture not working OS X Mavericks

I am using Magic Mouse with my iMac having OS X Mavericks 10.9. Everything was working fine since today morning, I realized that my Magic Mouse is only responding to scrolling and primary, secondary ...
1
vote
1answer
59 views

Using an iMac 27" as an external monitor for a PC

I have a Dell computer running Windows 10 and it have 3x DisplayPort and 1x vga outputs. I want to connect my iMac Core i5 27-Inch (Late 2013) as an external monitor to the dell pc. Can I buy a Mini ...
0
votes
2answers
37 views

How to reinstall OS X on an iMac which only has Ubuntu installed on it?

I have a 2011 iMac with only Ubuntu installed. It's not a dual-booted iMac, it only has Ubuntu installed. How do I revert back to original OS X and remove Ubuntu? I've tried pressing various keys (⌘ ...
3
votes
2answers
3k views

iMac not shutting down since upgrading to OS X 10.11, El Capitan

The iMac will not shutdown as normal, the spinning loader is visible and it stays in that state if I don't interrupt it using the power button. I want to be able to shutdown as normal, at present I'm ...
0
votes
1answer
18 views

headset plugged in via Y-adapter and extension cable stopped working

I own a late 2013 iMac 27". The following setup worked for months until yesterday: The 3.5mm port is connected to a Y-Adapter, the adapter let me use two headsets at once. I use my headset and my ...
0
votes
1answer
17 views

Mac turns off randomly and has lines on screen

For some reason my iMac keeps turning off around 5 to 10 minutes into boot. Also just recently it turns on but has shaded lines going down the screen. I have not installed any weird programs and i ...
2
votes
3answers
979 views

NetRestore image fails to install, no reason given

I've got a Mac Mini running the latest version of OS X Server, and two iMacs. Both iMacs are the same model (Mid 2007 20-inch, 2 Ghz Core 2 Duo). On one of the Macs I have installed 10.9.4 and ...
1
vote
1answer
19 views

Cannot create new user in Single-user mode

I try to create new user using the following commands: /sbin/fsck -fy /sbin/mount -uw / launchctl load /System/Library/LaunchDaemons/com.apple.opendirectoryd.plist dscl . -create /Users/username ...
0
votes
0answers
17 views

Transferring one user only from an old iMac to an existing iMac with other active accounts

The hundreds of help pages on Migration Assistant mostly talk about migrating to a new Mac. However, my wife and I each have our own existing iMacs (both running El Capitan), and each with only our ...
2
votes
2answers
122 views

Why is Target Display Mode via Thunderbolt so unreliable for me?

I frequently want to display my MacBook Pro 15" Retina with my iMac Mid-2011, in Target Display Mode via a Thunderbolt cable. TDM often fails on first attempt and just shows a black screen on the ...
2
votes
2answers
29 views

Can a 21.5 inch iMac (non-Retina late 2015 - 2.8 Ghz, Intel Iris Pro graphics, model 16,2) drive two external displays?

I'm currently running a Dell U2715H at its native resolution (2560 x 1440) via DisplayPort as an external display, and I'd like to add another at that same resolution. The Apple specs on this model ...
0
votes
0answers
12 views

Auto-correct on my iMac is checked so why is it not working in Apple Mail?

"Correct Spelling Automatically" box is checked in Keyboard settings. "Check Spelling As I Type" is checked in in Mail preferences. With the proper boxes checked, why is iMac Mail not correcting ...
0
votes
2answers
26 views

Magic mouse does not switch ON

I have been using the magic mouse for two years. I always slide off the switch under the mouse after the mac shuts down as I have seen it to save battery life to some extent. Since a week the mouse ...
0
votes
1answer
25 views

Repeated requests to update icloud preferances

I keep getting requests to update my iCloud preferences. I do so by reentering my password the the requests keep coming
16
votes
9answers
4k views

Recent items menus have stopped working on my iMac

Recently I noticed that on my iMac, running El Capitan, the Open Recent menu has stopped getting updated, both in the Apple menus, and for apps, and both for the Open Recent menu item, and the list ...
0
votes
1answer
20 views

27 imac Late 2012 HDD Failure

The HDD on my 27 imac Late 2012 has died. Is it replaceable? At present, I switch on (soundless) and get the white screen which loads up one third and then freezes. I tried Disk utilities which told ...
0
votes
1answer
11 views

Contacts from Address Book Disappeared

I just installed El Capitan (I used to have Lion OS X), and I lost my address book. So I googled about it and I can restore them from my time machine. I did that but the file can't be opened in the ...
0
votes
1answer
2k views

Vertical green stripes when iMac starts to boot up

An iMac has 5 green vertical bars/stripes that appear on the screen as soon the system starts booting. The OS is Yosemite (10.10.?) When I try to boot the computer normally, safe boot, or ...
0
votes
1answer
22 views

Mac — HDMI to USB/Thunderbolt

I know there are small USB boxes which are able to pass through image from HDMI (and record it) to computer. Is there something similar which would enable me to see stuff from HDMI on my Mac? Why: I ...
1
vote
3answers
190 views

iMac randomly wakes up from sleep

My iMac (27-inch, Late 2012) randomly wakes up, up to 9 times a day. I'm using El Capitan 10.11.3 (15D21). A syslog | grep -i "Wake reason" shows the following many times: Apr  5 00:02:50 ...
0
votes
1answer
2k views

Password incorrect and Internet Recovery Mode -3001f Error

Have an iMac here roughly 2 years old and within the last week the admin account password has stopped working. It is the correct password, used on all of our devices and only IT staff use it. The ...
0
votes
0answers
125 views

'the 'grub-efi-amd64-signed' package failed to install into /target/' during Linux Mint installation on an iMac

I have a Mid 2007 iMac, I've installed rEfind on the mac and the Linux Mint (Cinnamon 17.3) installer on an USB thumb drive . rEfind sees the USB thumb drive, sees grub installed on the key, I boot ...
2
votes
5answers
12k views

How many external monitors does the iMac 27" with 5k display support?

Specs indicate just 1. Has anyone connected more than 1 monitor successfully? How many can you connect in total?
3
votes
1answer
19k views

Resetting PRAM without a(n) (Apple) keyboard?

A while back I had an issue with my (2013) iMac not recognizing the keyboard after it was unplugged and re-plugged in. I had to actually power down the iMac and power it back up before it would ...
0
votes
1answer
5k views

Windows 10 installation using Boot Camp crashes in iMac with 'system thread exception not handled (igdkmd64.sys)'

I've installed Windows 10 Pro in my iMac using Boot Camp but when the computer is on for 3-5 minutes, it crashes and shows BSOD with the error 'SYSTEM_THREAD_EXCEPTION_NOT_HANDLED (igdkmd64.sys)'. ...
1
vote
1answer
2k views

Late 2006 iMac without OS: How do I boot to reinstall?

I was given a late 2006 iMac with the hard drives erased and no OS loaded. The iMac boots to flashing folder. I purchased a Mac OS Tiger Install DVD but it is not bootable. I also have a Mac OS ...
0
votes
0answers
12 views

Downloading miniDV from Canon to iMac

I can't figure out why I cannot import video from my Canon ZR850 onto my iMac. I have a DV-400 cable that connects to a FireWire 400-800 adapter that connects to an FireWire 800 to thunderbolt ...
0
votes
0answers
30 views

iMac - Midi controller disconnects

So I have recently bought an iMac for my music setup in which I have (amongst other things) a midi controller (M-Audio Oxygen 88) connected. I am experiencing a problem where at random times and ...
0
votes
1answer
26 views

OS X partially freezes

I have a 27-inch, late 2012 iMac. After I upgraded to El Capitan the user interface (UI) partially freezes at apparently random moments. Parts of the UI continue to work (e.g., I can close ...
0
votes
4answers
7k views

iMac Doesn't see Ethernet Cable

I have a strange problem with my iMac (mid. 2011 21,5) - I can't connect to the network using Ethernet because OS X tells me that it's disconnected when it's plugged in. Sometimes it can see the ...
11
votes
4answers
34k views

Can I compile .NET C# code on my Mac?

I need a way to cross compile a short piece of .NET C# code to a dll, which will then run a client's Windows environment. I run OS X 10.9.2 on an iMac. Does anyone know what tools allow this? I ...
1
vote
2answers
579 views

No method to install OS X system on to Mid 2011 imac 27"

Mid 2011 imac 27", which had a new hard drive installed afew months back. Since having a bad crash, the system had corrupt but seem get stuck in boot cycle on startup. I ran fsck on the hard drive but ...
0
votes
1answer
26 views

iMac (mid 2010, 27") minimum ram slots required to fill

Can I use only two 8 GB RAM modules with my mid 2010 27" iMac (2.8 GHz Core I5)? In other words, do you have to fill all 4 memory slots or are 2 filled slots sufficient?
1
vote
0answers
21 views

Desktop Mac Extremely Hot Running as External Display

I have a late 2009 iMac that I use as an external display for my mid 2014 Macbook pro. Everything works great except the iMac runs extremely hot to the touch, close to burning if you had your hand ...
2
votes
3answers
3k views

27" iMac (fall of 2010) won't shut down

Whenever I try to shut down my iMac (3.2 GHz Intel Core i3, running 10.7.3), it closes out all programs, goes to the gray screen with the spinning ball and just hangs there. This occurs in restart or ...
1
vote
2answers
37 views

iMac (Late 2015) using swap when there's still plenty of RAM left

My wife's new iMac is behaving rather oddly. Despite being a pretty powerful machine, it's rather slow and laggy. I looked into it, and it seems her swap memory is maxing out, even though there's ...
1
vote
1answer
2k views

El Capitan gives me a kernel panic error right after installing

Almost immediately after the installation reboot, and seconds after the apple logo appears the following error shows up; panic(cpu 0 caller 0xffffff8017d263a6) : "zone_init;kmem_suballoc ...
0
votes
0answers
16 views

Xcode is shutting down network access on my iMac

This is really strange. I'm running OS X 10.11.4 with all updates in place on a 2010 iMac. I am using Xcode 7.3 for iOS development. When I build and deploy my iOS app to any iOS device through ...
0
votes
0answers
17 views

Problem with bitmaped and vectored graphics

I have a 2009 iMac with El Capitan (10.11.4). I have recently discovered a very subtle problem with both bitmap and vectored graphics. With bitmaps, while making fine adjustments to shapes using ...