Ubuntu
linux-source-2.6.17 package

  1. Bug #34155
  2. Comment #4

Comment 4 for bug 34155

Revision history for this message
Erik Andrén (erik-andren) wrote : Re: sleep and hibernate don't work on Dell C640 (regression from breezy)

I've been able to improve the situation by adding vga=0 to the grub boot line.
Please try if this improves the situation for you too.