The problem when your computer/device as a whole OR an individual application becomes unresponsive, "hanging" as it were, in mid air.

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10
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2answers
15k views

MacBook Pro with Mountain Lion freezes frequently (full screen Flash in Chrome, Messages, HTC on USB)

Problems following an upgrade to Mountain Lion on a 13-inch, Early 2011 MacBook Pro (MacBookPro8,1 with Intel HD Graphics 3000). With Google Chrome, I was watching YouTube video fullscreen – Flash ...
5
votes
8answers
12k views

Checking for bad blocks without formatting

My Mac tends to pause every now then when preforming simple tasks such as right clicking, opening menus and typing (It actually just froze when I started typing this question.). I've read in a few ...
7
votes
2answers
7k views

How does 'stuck' (in results of 'top') relate to 'not responding' (in Activity Monitor), 'spin' or 'hang'?

In results of top commands, I sometimes see stuck. Apple's top(1) OS X Manual Page does not explain this use of the word. How, if it all, does stuck relate to the following? not responding – ...
4
votes
3answers
3k views

With Firefox Aurora, Mountain Lion hung - but the mouse still worked

I've just had my first Mountain Lion lockup. The screen was entirely frozen in place (I have seconds displayed on my clock in iStat Menu and even that wasn't moving) BUT the mouse still worked. I ...
4
votes
4answers
10k views

Finder slow/freeze under Mavericks

<rant>I wish I never upgraded to OS X 10.9, it is so buggy!! But the alternative to stick with the unpatched earlier version of OS X was not a solution! Anyway, so I am on this crappy Mavericks ...
1
vote
3answers
118 views

How to get my screen responding again?

My MacBook Pro is running, ssh works fine, but the screen does not respond anymore. The screen is frozen like the ice of Antarctica. The mouse does not move on the screen. The time of the clock does ...
9
votes
1answer
2k views

What does it mean when a %CPU exceeds (# of cores) x 100%?

Several responses to a question I asked earlier suggested I try Opera kiosk mode, so I decided to download it and give it a try. Once the download had completed and the disk image was being verified, ...
6
votes
2answers
168 views

My iPod Touch / iPhone is frozen!

My iDevice is frozen on one screen and won't let me do anything. What can I do to fix it?
1
vote
1answer
2k views

Mountain Lion Screen Freeze

My Mountain Lion is keeps freezing from few weeks, today it freezes/crashed couple of times already. Here is the log before the big freeze (file /var/log/system.log): SIMBL Enabler for Sandboxed ...
11
votes
3answers
26k views

How to stop MacBook Pro (Retina) from freezing/locking at the login/authentication dialogue, after wake?

Steps to reproduce: Be doing anything Close the lid of the computer Wait around for a while Open the lid of the computer Login prompt for last logged in user appears, battery and time MAY update, ...
3
votes
3answers
4k views

Built-In Trackpad and Keyboard Unresponsive after Sleep or Restart

I have a MacBook Pro (15-inch, Early 2008) that's currently running 10.7.3. I've been finding that it will intermittently freeze and then I have to shut down and restart the computer, but sometimes ...
2
votes
4answers
1k views

Mountain Lion sometimes hangs when mouse enters Dock – pointer is movable, but the MacBook Air seems otherwise frozen

I have a mid-2011 13" MacBook Air (MacBookAir4,2 with Intel HD Graphics 3000). Since installing Mountain Lion I sometimes encounter a problem when I move the mouse cursor over the dock to click ...
8
votes
3answers
3k views

How do I make Spotlight stop indexing my Backup drive?

I have a 2TB external drive I use for Time Machine. At random intervals, it will decide to spin up and my entire UI freezes until it's finished. This is incredibly annoying. It appears that this is ...
17
votes
10answers
14k views

Why is Preview excessively slow after upgrading to Lion?

After upgrading to OS X Lion, I noticed that my preview app is now excessively slow, taking minutes to open a file instead of seconds, even when opening a local file. In addition, it is often ...
4
votes
10answers
1k views

What is wrong with my iMac? (video corruption, unstable)

I have a 24" Early 2009 iMac. During "intensive" use (such as Photoshop, WebGL, etc.), the system starts to become very unstable, resulting in bizarre graphics corruption and other weird behaviour. ...
2
votes
3answers
6k views

Boot hangs on grey screen (even when booting from USB drive with fresh OS X install)

My MacBook Pro 15" Late 2011 (MacBookPro8,2) with AMD Radeon 6770M exhibited display corruption and associated system crashes/resets over a period of two weeks before it entirely failed to boot. The ...
6
votes
2answers
846 views

OS X Finder hangs on tagging

I'm having a problem with the new tagging feature in Mavericks and I have a feeling it might go deeper than just the tagging. The problem is this: When tagging anything on Mavericks the Finder ...
5
votes
1answer
2k views

How to kill stuck Screen sharing authentication dialogue?

Sometimes when connecting to a screen sharing machine in Finder, the authentication dialogue hangs indefinitely. The only way I've been able to get rid of it is log out. So far I've tried killing a ...
5
votes
3answers
892 views

Why does Safari always hang?

I use Safari as my browser, but I've found that it frequently hangs for 20, 30 seconds (sometimes longer), often times when I wake it up from sleep and/or when I open a new tab. Though I'm not sure ...
0
votes
2answers
2k views

Freezes on MacBook w/ Lion with Intel 330 SSD

I installed an Intel 330 SSD (120GB) in my MacBook (4,1) a few weeks ago. I reinstalled a fresh Mac OS X Lion (10.7.4) to make sure there are no issues with the new drive. However, since then I ...
7
votes
1answer
3k views

Why does my computer auto-restart after freezing (Lion 10.7.3), even when disabled?

Since recently upgrading to "Lion 10.7.3" I have had repeated instances of the machine hanging/crashing without warning and then silently restarting. Problem is, that such automatic restarts happen ...
3
votes
3answers
2k views

Why does my computer freeze when I unplug my headphones?

Whenever I plug in or unplug my headphones into my computer, it freezes for about 10 seconds before it is able to do anything which is rather annoying. This didn't use to happen though, would anyone ...
2
votes
1answer
2k views

Why does Force Quit Applications freeze?

When an app freezes on my app, I will press Command ⌘+Option ⌥+Esc ⎋ to open the Force Quit window. However, this will take minutes often, and clicking on the Force Quit button freezes the Force Quit ...
2
votes
2answers
2k views

How do I stop my MacBook Pro from randomly freezing when trying to go to sleep?

My 2011 MacBook Pro has been having a problem occasionally where I put it to sleep, but it continues to run. Later when I go use it again, I realize that it was on the whole time (usually inside my ...
2
votes
2answers
4k views

Mouse/Keyboard won't connect after being powered off

my iMac has recently developed an odd issue: If the mouse, or keyboard, is powered off (power button, or because I pull the batteries), and then powered on again, the device will not connect to the ...
1
vote
1answer
3k views

iMac doesn't start, all i see is colored lines and then checkered lines on a white background

I have iMac 2010 which is out of warranty. I recently came up to the computer and it was sleeping and was not waking up. I held the powered button for a while, so it turned off. Then I pressed it ...
0
votes
2answers
34 views

MacBookPro10,1 goes to gray screen when a USB is inserted

This is a follow up to my other question. Now the problem is sometimes when inserting a USB stick, the computer freezes and goes to a complete gray screen(kernel panic). It seems to only happen if ...
0
votes
1answer
461 views

Safari 6 freezing

I've recently upgraded to Safari 6 in Lion and I'm seeing some pages freeze: I cannot scroll down and sometimes cannot click on anything. Safari is still alive and working but the freeze cannot be ...