Bug#885947: marco: After updating, restart (user or pc) and log in, desktop fails

[Alkis Georgopoulos <alkisg@gmail.com>]

I'm seeing a similar problem here with older nvidia cards.
Could you try this?

1. Login with metacity
2. Open a terminal
3. Run: marco --no-composite --replace

For me, both metacity and `marco --no-composite` works fine.
While the default `marco --composite`,
* Crashes Xorg on TNT2
* Doesn't crash but causes tearing and display artifacts in newer cards

I think that marco 1.20 started using some driver API which doesn't work 
in some nouveau cards.

Another workaround for me is to use PageFlip Off in xorg.conf, but this 
hurts performance.