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[PaulW <paulw@xxxxxxxxxxxx>]

Bit of playing... From what I can make out, DPMS isn't being set on, or
is being ignored on some boots by the driver.

If I ssh into the laptop (while screen is off) and issue:

#sudo vbetool dpms on

the screen then turns on.

As a quick&dirty fix for this, I did the following:

Edit the file

/etc/gdm/Init/Default

Scroll to the bottom of the file, and before the line "exit 0" and after
the last "fi" entry, add:

     /usr/sbin/vbetool dpms on

Save and exit, reboot.

Seems to work fine now, I've done about a dozen or so reboots, each time
the display comes on as it's supposed to do!

-- 
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https://bugs.launchpad.net/bugs/682287

Title:
  Black Screen at Start

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