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Keyboard stops working in Snow Leopard when using Spaces

A couple of times a day, the keyboard stops working when I select another space using a keyboard shortcut. It does not happen every time I switch spaces.

Symptoms:
~ The Spaces selector stays on-screen, it doesn't fade away as usual
~ The keyboard is unresponsive for regular typing (such as in a text document or in Terminal)
~ I can still use keyboard shortcuts to move to another space
~ The Keyboard Viewer still shows keys as I type them
~ The mouse and touchpad works as it should

The only thing that makes the keyboard responsive again is either a reboot, or performing a standby + resume.

Is anyone else experiencing this?

This happens both on my non-unibody Macbook Pro 15" 2.5Ghz at work and on my unibody 13" Macbook at home.

Message was edited by: neu242

Macbook Pro 15" 2.5Ghz, Mac OS X (10.6.1), 4GB RAM

Posted on Sep 15, 2009 2:19 AM

Reply
292 replies

Sep 19, 2009 9:32 AM in response to direwolf8

I use that work-around also of selecting the Dock in Activity Monitor and clicking Quit Process, then Quit Process in the "Are you sure" dialog box. I keep Activity Monitor open all the time, have it assigned to all Spaces and put it near the edge of the screen so I can click on it in the background to quit the Dock. After quitting the Dock, it nearly immediately restarts itself, so no lost Dock functions.

Until Apple fixes the problem, quitting the Dock in Activity Monitor is much easier and faster than restarting or logging out. There are several threads reporting this problem, but so far, I've not found a permanent solution.

Sep 21, 2009 9:11 PM in response to Bruce Etnyre

I am not sure we are all having exactly the same problem, because as I posted above I can consistently restart the keyboard by unplugging and replugging the keyboard USB, whereas it sounds like others cannot.

However FWIW I have noticed that the keyboard freeze happens whenever the optical drive drawer is closed (ie every time it is used, but specifically when it is closed). I'm not sure, but since noticing this I don't think I've seen it happen at any time other than this.

Sep 22, 2009 11:02 AM in response to neu242

neu242: There are some differences but I think they are related. In "my" problem, the spaces grid icon always remains on the screen when the keyboard freezes, just as others said. So I assume (not 100% sure) that it is also triggered by using spaces. If I close the CD drawer by physically pushing it, the problem does not occur-- only if I use the eject key on the keyboard to close the drawer. So there is some conflict involving the keyboard commands for spaces and the eject key, which together induce a keyboard freeze.

Sep 23, 2009 9:45 PM in response to direwolf8

This is incredible, really. There has been a revision to Snow Leopard and this was not fixed? It's a freakin bug that leaves us without a way to use the computer, how is that for severity?

I know of the workaround, and appreciate others posting, but seriously, why the **** hasn't this been fixed?

BTW, you can avoid it by turning off spaces. So thank you Apple, for introducing Spaces in Leopard and making it IMPOSSIBLE to use in Snow Leopard.

Where is you QA team? How can something so severe make it through? Very disappointing.

Sep 23, 2009 11:44 PM in response to sabor

Rather typical apple though. OS X Server's open directory has yet to work correctly for me and not corrupt its self, but that's life I suppose. You could use one of the 3rd party options (no idea if they are still around or not).

I just hope apple fixes it soon but i am not holding my breath

Sep 25, 2009 3:14 PM in response to driftir

There's now a CNET article noting the problem here: http://reviews.cnet.com/8301-13727_7-10361439-263.html

I'm curious -- which modifier key have people been using to trigger the Spaces shortcut? Mine had been the Command key (which I think is the default). This article suggests that a possible cause of the bug is conflicts between the system-level Spaces shortcut and the ones used by applications -- and indeed several of my apps have Command-number key shortcuts that Spaces (when it's working) will override.

So I've switched my Spaces modifier key to the Option key, and for several hours haven't had the bug recur -- which doesn't mean that it couldn't happen any minute. Would be interested to know which modifier key people have been using, and whether changing it makes any difference?

Oct 7, 2009 11:26 AM in response to neu242

I bought a new MacBook Pro 13" recently, and I've had this problem a few times. I was reduced to restarting the computer via the on/off switch. I was really concerned that it might be a hardware issue because searching on Google I've had lots of pages come up, possibly an issue with a electrical contact under the keyboard/trackpad. So I've had a go at doing the Automator script, thanks to the person who suggested this. I've never used Automator before, so it was an interesting exercise, I was worried I'd wreck the whole software. Anyway it does seem to kill the dock momentarily so I await with interest the next occasion when the keyboard freezes. And by the way it doesn't seem to be anything to do with using spaces. I have spaces disabled and have never used it. But I will let the local Mac shop where I bought this computer know about this problem, so there's no argument later in case it is a more serious issue.

Keyboard stops working in Snow Leopard when using Spaces

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