Public bug reported:
Hello,
Since the update requiring the use of KMS, I have a problem with the screen
built into my laptop. When KMS is enabled, my laptop screen remains blank.
However, if I plug in a VGA screen, it works perfectly (and the laptop screen
remains blank).
When KMS is disabled, this screen seems to work perfectly, but on X will not
start. The problem seems to come from the driver xf86-video-intel, because my
graphics card is an Intel GMA 4500M.
I tried to run a livecd, but it also fails to display anything after the boot
screen.
Attached are kernel.log.
http://pastebin.com/Uq9uRM04
** Affects: xserver-xorg-video-intel (Ubuntu)
Importance: Undecided
Status: New
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which is subscribed to xserver-xorg-video-intel in Ubuntu.
https://bugs.launchpad.net/bugs/825564
Title:
Black screen after boot
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