Bug#600802: Cause is change in package requirements

[John Talbut <jt@dpets.co.uk>]

If the problem I had was unrelated then I would have filed a separate 
bug.  However the problem I had was exactly as described and discussed 
above.

I have found that the problem, certainly on my two netbooks, is that the 
package now requires
CONFIG_DRM_I915_KMS=y
to be set.

This was evidently not the case before and so a resolution of this bug 
would be to halt the upgrading of the package until the user had 
acknowledged a warning of this requirement.

Cheers

John