I am agree that it is not gdm problem. But this problem only happened after upgraded to Hardy or fresh installed of Hardy.

On Sat, 2008-05-31 at 09:00 +0000, Sebastien Bacher wrote:

that's a binary drivers issue

** Changed in: linux-restricted-modules-2.6.24 (Ubuntu)
Sourcepackagename: gdm => linux-restricted-modules-2.6.24