I've seen several posts on this -- oddly, some of them are archived even though there has been no resolution...
Would love to hear people's experiences and especially if you have a fix. Would REALLY love it if Apple would get off their duff and give us a working O/S.
Ever since upgrading to Leopard I've been having problems with system stability and, specifically, with lockups. Usually this starts out with a few applications get "hung" (beach ball). Again, usually, I can force quit them, restart and continue for at least a little while... but, it always marks the beginning of a downward spiral. The final straw seems to be when Finder locks up. Once Finder locks, the system becomes unresponsive overall and I can't shut down without doing a hard reset (either cmd-opt-power or, more often, just hold power until a get a hard reboot).
Some of the behaviors I'm seeing:
- Apps start to lockup. Best option at this point is to quickly shut everything down and restart. On occasion I get a software restart if I'm prompt about it.
- Finder locks up... forget it. Hardware restart is in my future... will generally try to save work, but it seems that anything involving disk / file system access is completely frozen.
- About one out of two times, the login screen is very slow to appear (about a 2 minute boot), and then it fails to respond to my wireless keyboard &/or mouse. Sometimes the mouse works, keyboard doesn't. If I wait for 1-2 minutes, it will usually "wake up" and suddenly gets all of the input in one blast... but usually I lose patience, open up the laptop, do another hard reset.
- Sometimes the screen saver won't release control of the machine (much like login screen). I can move the mouse, tap keys, etc., screen saver just keeps right on running blithely along...
- On rare occasion, even the force quit panel (cmd-opt-escape) refuses to appear.
Of late, I've taken to launching Terminal on login so that it's available (because after the lockups start, I won't be able to launch it). Then, I can issue a "shutdown -r now" which, most of the time, seems to work pretty well. I hate doing a hard reset, always worried it will lead to a damaged file structure or lost work.
I've tried a number of fixed, including (at the height of it) reinstalling 10.7.2, which I did a few days ago. It made no difference at all... Also tried resetting NVRAM, etc. About the only folklore I haven't tried yet is switching to Chrome or Firefox. A lot of people are blaming Safari for all of this, so perhaps I'll try that next...
I'm suspecting that Time Machine is making the situation worse, but turning it off (and disconnecting the drive) does NOT solve the problem. It seems to go a little longer in-between system lockups. Same symptoms... apps become unresponsive, one after the other starts to beach ball, eventually the whole system locks up... I'm wondering if it has something to do with disk access, as posted in other threads. I've been trying to minimize disk access wherever possible, for one, just plugging in my Time Machine drive about once a day, let it backup, then unplug. Not really sure if it's helping or not though.
Currently, I'm running into this on average 3 times daily (worst day was 6 times, best day was just once, yay...) Yes I've been keeping track. By my count I'm also losing up to two hours a day, because the shutdown / reboot process is so baby-sitting intensive (and I have to do it several times a day).
Very, very frustrating. This is definitely the worst O/S release Apple has ever put out there. I'd like to go back to Leopard, but worried about the downgrade... arrrgggh. (Wish Mr. Jobs was still around, somehow I think he would never have tolerated this...)