Basically it stops recognizing all non alpha keys. Restarting eclipse does not fix the issue. Rebooting my computer does.

I'm using OS X 10.6.4 fully updated. :)

Anyone else experience this?

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I have this issue too, none of the "fixes" have ever worked for me. – NorthIsUp May 27 '11 at 19:05
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migrated from serverfault.com Jul 17 '11 at 13:20

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6 Answers

Instead of killing the dock, you need to kill the Finder. To do this, you have to do "Apple + Alt + Escape" which shows you the force quit dialog, select the "Finder" and click "Relaunch". Your keys should be start working again.

I suspect it's something to do with an application crashing and then screwing up Java processes (this happened immediately after Firefox crashed).

All the best

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I've tried this dozens of time, with no success. Only a reboot solves the problem. – bobber205 May 27 '11 at 16:52
works for me, thanks – cerberos Dec 29 '11 at 7:07
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Yes.. with Aptana Studio 2.0 & OS X 10.6.5

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Killing the Dock process fixes this annoying issue.

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This just happened to me again, with Eclipse refusing to recognize my keyboard. I tried – bobber205 Dec 30 '10 at 20:09
I tried killall -KILL Dock to no avail. :( The dock did indeed restart, but I am still having the issue. – bobber205 Dec 30 '10 at 20:10
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I have the same issue with disabled keys in Eclipse two times a month.

Solution: Quit Apple Mail.

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For me the problem was my mouse.

It's 3rd key was engaged. It's an Evoluent Vertical Grip mouse and I never used the 3rd mouse button so I didn't realize that it was permanently pressed. Getting it unstuck fixed the problem.

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I had the same problem, and the solution was pointed out in Jonah Dempcy's answer.

Although I don't have a mouse — I have a MacBook Pro with OS X Lion 10.7.2 and Aptana 3 — somehow middle click was activated (i.e. the third mouse button.

As soon as I used my custom shortcut for middle click, the problem disappeared. So, just click the third mouse button / wheel / shortcut a few times.

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