Mountain Lion freezing

I have installed the ML 2 weeks ago, and had no problem. This morning, the system became unusable. Even after a reboot, when I tried to open some apps or work with Finder the system frozen, with the beach ball. I got mad and reinstalled the ML, reset NVRAM, but again frozen. I reset again the NVRAM and this time started working fine. I had no issues for a few hours, when suddely my intenet stopped loading pages. When I wanted to quit Chrome, the system frooze again...Good job Apple, really good job. I used the developer preview 3 and I have to say it had no issue at all and it was booting way faster than this final version. I think I will be downgrading to Lion.

This kind of issues make you regret you pay 2000$+ for a machine with "the most advanced operating system".

Have you tried using a program called gfxCardStatus? The issue seems to be related to non integrated graphics for many people. It's a poor solution, but one that will at least stop crashing if this is your issue. Just remember to unintall the program once 10.8.1 comes out.

Since I instaleld the problem and set to use integrated only and it should stop the crashes.

regarding this issue, before I reinstalled ML, everytime I used a program that made use of ATI card, the colors changed (color temperature, they we're colder than on integrated graphics).

same here, what a deception after years of keeping my MBP on during months now I have to restart at least once a week 😟

I just installed gfxCardStatus and set the card to Integrated... had a voley match on my screen... so for me this is not a fix 😟

Jozie wrote:

I have a cursor I can move around, but nothing I click on works, I can't switch between programs, and Force Quit combination on the keyboard doesn't work either.

I have to restart the machine.

This is exactly what I've experienced except it happens when I'm using Google Chrome.

I had to push and hold the power button for awhile until it shuts down.

I've stopped using Google Chrome temporarily and it has never happened again. I'm using Firefox for now.

I'm using MBA 11 (mid-2011).

I hope Apple releases a fix for this as I'm having a hard time using other browsers as I've grown accustomed to Chrome.

I´d like to give you an update.

I turned off LittleSnitch version 2.5x (no uninstall) and uninstalled the safari extension ClickToFlash 2.69

The system is still very sluggish (eg freezes, loss of internet connection, problems with TimeCapsule,..) but at least the computer is useable again.

But I like to mention that I did a clean install at the beginning and then I was already experiencing trouble without any third party extensions installed.

I am using MBP 15" Early 2011, after installed ML, I am having a similar problem when running those photo / photobook editing program. Only the cursor can be move around, and have to hard reset the machine.

Hope 10.8.1 will be available soon... 😟

Earlier in this thread I suggested a clean install resolved my issue on ML freezing. So I hoped.

Two days later, I had one episode of OS freezing. I just opened Finder when it froze.

Since I got to upgrade from Lion to Mountain Lion in July 27, I've reinstalled twice. Clean installed ones, and have reset PRAM as others suggested. I guess nothing would or could avert this occurences up until the release of 10.8.1 (that is if Apple recognises this problem).

I have a Macbook Pro 13" late 2011. My friend who has the 17" inch model does not experience freezing with his Mountain Lion.

I have no idea if 10.8.1 is going to solve this freezing problem, but I encourage everyone to call Apple and tell the tech support people what's going on and about this thread. 800-275-2273

Early 2008 iMac, 4GB, upgraded to Mountain Lion and got freezes, a few a day. Sometimes with white or black or striped screen, sometimes I can move te cursor but cannot do anything else with the machine. No beachball. Tried to exclude everything, even Safari and Chrome, but found no cause. iMac running a bit hot (internal HD always ~50C with extra fan speed), as always (I really hope they will improve heat management in the next iMacs) but cannot point to that as the reason.

I can say that, surprisingly, I've minimised issues since I did a Repair Permissions. Open/close lid, used Safari a bit. I've only had to hard reset once in 3 days as opposed to every 10 minutes. Progress!

May not fix your problem, but Repair Permisisons might be worth a try.

Chrome and Norton are not relevant to the problem, if we're having the same trouble (and I assume so).

I started up in safe mode, hoping that that at least would help, but after a few minutes, after only having checked my email, I wanted to use a program so I opened Launchpad with the pinch gesture on my touchpad (not having Alfred in safe mode). The result was interesting: I got a freeze of the kind with being able to move the cursor, but looking at my desktop, I saw a faint 'ghost' image of all the Launchpad icons behind!

Seems something with the graphics or the window manager. But I hate it !!

My stone-age 1999 IBM thinkpad with Windows 2000 I still have lying around is far superior to my iMac at the moment...