GNU/Linux Desktop Survival Guide
by Graham Williams
Originally, closing the lid and reopening it rendered the laptop unusable. The screen remains blank, although it is still functioning. If it is network connected it is still alive, and presumably anything I am doing on the keyboard or mouse, is going through! The solution mentioned in http://www.sirlab.de/linux/debian_dell_d610.html did not work.
On moving to kernel 2.6.18, at least, the problem disappeared.