Public bug reported:
I just had this problem on my freshly installed edgy machine, this did
not happen on my dapper > edgy machine:
When closing the laptop lid, the screen blanks and turns off, when
reopening the lid, the screen does not turn on again, and I have to
manually issue "vbetool dpms on"
gnome-power-manager also does not respect the 'when lid is closed' 'do
nothing' setting in gnome-power-preferences.
I believe the bug comes because the hardware shuts down the screen, but
for some reason does not turn it back on again.
There does not appear to be a workaround right now.
** Affects: gnome-power-manager (Ubuntu)
Importance: Undecided
Status: Unconfirmed
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Screen does not turn back on when closing lid on dell latitude D610
https://launchpad.net/bugs/67231
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