OS X Yosemite Keeps Crashing To Log-In Screen

Bump.Still have this problem...........

I've been experiencing this issue for several weeks!? Sometimes I was just puzzled the next morning...thinking my kids had restarted or something...

I'm on Macbook Pro 17 (late 2011). No particular different apps installed - all Apple apps, Office, Xcode...

Same problem overall - working away, have a sort of mini freeze...then next back at login. Often I don't lose much as most windows (Xcode etc) are autosaved often.

Would love a fix for this...sad that we're all experiencing the same 'completely unstable' Mac OS X experience...on many different hardware items too.

I only experience the problem when Switching to Lock Screen (no other users exist) and probably only when it goes to the sleep when locked. I thought that it crashes when I log back in, but output from the last command always shows, that I was logged out near the time of the logoff.

I will write a script to monitor when the crash happens.

Hi

I have given up on this as I don't think it is a Yosemite related issue. I found posts going back to 2011 on the same issue (with no resolution), well before Yosemite. I spend hours on the phone to apple and got not where. They just ran through all the obvious stuff, S&P RAM, file system check etc but nothing deeper.

A fresh reinstall of Yosemite and everything (appears) is stable. Three days and no crash. I only installed minimal set to apps and have kept a log of what and when I installed so as my install base grows I can see which app might have triggered it.

I don't like quitting but I think this is a fight that cannot be one.

I'm having the same problem. It occurs on both my MacBook Air (mid 2012) and my iMac (late 2012). I can't seem to isolate the problem to the use of any one program. Most of the time my work is saved, but the random and sometimes frequent (three in on hour) automatic logging off is pretty annoying!

Ok

Today is Wednesday.

I have had the Mac running to three full days and not one crash. Finally, back to the old days of it 'just working'.

I don't think this is a bug that can be found easily.

My recommendation is to reinstall and do not recover data from Time machine or if you do, do not recover it back into situ. Recover to your desktop and only recover the actual data rather than a package or anything like that. I have kept a complete log of all of my software packages and only installing them as and when required and so far so good. If I find 'the package' that triggers it, I will report back here.

These packages have been successfully installed and are stable on my system.

iPhoto

Mac Journal

Web site

=======

dropbox

1password

parallels

Synergy

Kaspersky

Little Snitch

Livecode 7.0.1 RC3

Beamer

Omnifocus

Touchcopy file recovery

aimersoft

So Far so good.

It will be interesting to see if the wipe and reinstall is ultimately the solution. I haven't wanted to go through it yet, since I was hoping a Yosemite update would fix it. My issue is almost always triggered when connecting or disconnecting an external monitor, but occasionally it will happen just clicking something in an Chrome or Safari.

I'll try it this weekend and report back.

Well I went for 2 and a bit weeks "in the clear" without a single issue. The only thing I'd done differently since I last posted is disable Power Nap on Firefox. Today I crashed back to the login screen and when I logged back in, some fairly old saved states were restored for some of my applications (although for the most part I don't think I lost anything). Upon logging back in, I noticed my overlay graphic for things like changing the volume or connecting a bluetooth device is "distorted" (attempted to insert the image here but it wouldn't let me).

Interestingly, I updated to Firefox 34.0.5 today which I've just discovered turned Power Nap back on. Am tempted to run with Power Nap off for a while and then turn it back on to see if I can replicate the issue (after closing everything first!).

Will check in later and hopefully have something more definitive.

Still happening here for me about two or three times a week. I've not found any commonality to when it occurs.

I'll post back if I'm wrong - but I'm avoiding running Messages (I'd just started using it recently due to Yosemite features) and so far haven't experienced the 'login crash' again in about three days.

Hi

After a week with no issues, it happened again.

I was purchasing something in Safari at the time and it just dumped me out side at the login screen with no warning.

I have kept a log of what I have installed.

iPhoto

Mac Journal <- Up to this point no crashes in a week

-> NEW Rapidweaver

Web site

=======

dropbox

1password

parallels

Synergy

Kaspersky

Little Snitch

Livecode 7.0.1 RC3

Beamer

Omnifocus

Touchcopy

aimersoft <- Up to this point no crashes in a week

->NEW Logitech keyboard driver

->NEW Omnigraffle

->NEW flux

->VERY NEW Mydrive - TomTom (Installed Yesterday)

->VERY NEW Firefox (Installed yesterday)

No conclusion yet

Does anyone else see a pattern in the software with their own thoughts or software installs?

Logically I am seeing that the Logitech driver would be running as would be Flux (Screen dimmer).

None of the other new software was launched at the time.

Software that was open

Omnifocus

Safari

Mail

Messages

iTunes

-Logitech keyboard driver

-Flux driver

Matt

Same here, several times a day, on my MacBook Pro and iMac ever since installing Yosemite.

Matt,

I have Flux installed on my iMac but not on my MacBook Air. Both computers are experiencing this problem, so based on that I would rule out Flux.

Josh

Well today I reinstalled Yosemite and guess what it has made NO difference at all so then I used the disk repair tool and still no difference I still get booted back to the log in screen.

what more can I do I have had enough of this s**t all I have now is a useless pile of crap sat on my desk.

Will I ever buy another Apple product again,no not as long as I have a hole in my butt......

Hi

I have made a discovery. Little snitch seems to have a memory leak. It is slow but it does appear to be there.

I caught it when it was using 485 MB of RAM. By the time I had written an email to explain the weird behaviour to the vendor, it was over 500 MB. The more traffic, the faster the leak. It starts off about 25 MB after a reboot and grows from there. That does not sound good to me.

I have reported it to little snitch, with screen snapshots etc, and will advise if/when they fix it and if it makes a difference.

I hope this is it. Is anyone else using Little Snitch? Please reply IF you are or IF you are not as I would like to get a feel for if it is a common item.