This sounds similar but not equal to what i experience after the 2.6.17-10 kernel package was installed. This is described in bug report https://launchpad.net/distros/ubuntu/+bug/63577 . Although, my problems are with a ati x700 mobility card.
-- Toshiba Laptop Freezes on Shutdown or Reboot in Edgy https://launchpad.net/bugs/63638 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
