Thank you cfenollosa,

I'm adding this to our collection. This is a new one for us, we have never been able to reliably reproduce this class of issues.
ID 14.2M should correspond to the second half of June 2013, Apple has had already 10 months to fix this. We will follow up.

Cheers,
Carlo

A pity they don't give information about bugs not reported by them, I couldn't access #14.2 so I can't really tell if it's a duplicate.

Anyway, thanks for your support, Carlo!

I also randomly will get logged out of the OS when using a "Show Desktop" shortcut. (See https://discussions.apple.com/message/25732327#25732327 for an ongoing thread).

Carlo, if there is anything I can do when it happens on my machine to help you, let me know.

Thanks!

This has gotten really bad for me since upgrading to 10.9.3. I upgraded to the 2.2b driver hoping it would resolve the issue, but no luck. Attempts to show the desktop almost always end in the WindowServer crashing (I think I've crashed it about 10 times in the hour and a half I've been at work this morning... gotta remember to stop trying to show the desktop!). I will note that my setup seemed a lot more stable with 10.9.2 and the 2.1 driver.

I've submitted a crash report as Carlo suggest earlier in this thread.

Hi All,

If you see this class of issues please follow cfenollosa's footsteps and raise a bug at https://bugreport.apple.com. We have a good opportunity to get fixes in OS X now that Yosemite is in early development stages.

Cheers,
Carlo

I will note that I disabled the animations for show desktop and mission control which has restored stability for me. Fire up your terminal and run the following two commands.

Thank you so much for this. While we wait for the fix, this is going to be so helpful in preventing crashes.

This is useful, but I am still experiencing crashes when I open a Chrome extension popup, like AdBlock or Pushbullet

Any suggestions?