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[Adam Szanto-Varnagy <368946@xxxxxxxxxxxxxxxxxx>]

I also experience the endless blinking, however, I use a desktop
computer and no power manager. Blinking starts like random, I was unable
to identify what kind of effect triggered it.

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https://bugs.launchpad.net/bugs/368946

Title:
  [i965gm] Closing and opening lid sometimes leads to screen ENDLESSLY
  BLINKING

Status in “gnome-power-manager” package in Ubuntu:
  Confirmed
Status in “xserver-xorg-video-intel” package in Ubuntu:
  Invalid

Bug description:
  Binary package hint: gnome-power-manager

  Sometimes, on my laptop running latest Jaunty, there is strange
  behavior. If I close and then open lid, the screen starts blinking
  endlessly, redrawing window decorations. It is highly annoying and
  makes laptop unusable.

  Doing ctrl-alt-F21 does not help, reclosing the lid does not work.

  The following messages fiull Xorg.log with the same frequency as
  blinking:

  (II) PM Event received: Capability Changed
  I830PMEvent: Capability change

  (II) PM Event received: Capability Changed
  I830PMEvent: Capability change

  etc

  What I noticed is that if I click on SCREEN BRIGHTNESS applet and
  bring up the slider for screen brightness, blinking stops while the
  slider is up.

  [lspci]
  00:00.0 Host bridge [0600]: Intel Corporation Mobile PM965/GM965/GL960 Memory Controller Hub [8086:2a00] (rev 03)
  	Subsystem: Fujitsu Limited. Device [10cf:13f2]
  00:02.0 VGA compatible controller [0300]: Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller [8086:2a02] (rev 03)
  	Subsystem: Fujitsu Limited. Device [10cf:13f7]

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