[Bug 756509] Re: N130 flickering backlight on startup

Chris 756509 at bugs.launchpad.net
Sun Apr 10 12:04:22 UTC 2011


** Attachment added: "This comes up, jumping about when the backlight goes nuts. Happened whilst I had my fingers off the keys for a bit... I think it might have been trying to dim the backlight."
   https://bugs.launchpad.net/ubuntu/+source/meta-kde/+bug/756509/+attachment/2010015/+files/Screenshot.png

** Description changed:

- I have a Samsung N130 netbook and Ubuntu occasionly and erratically
+ I have a Samsung N130 netbook and Ubuntu occasionally and erratically
  flickers the backlight brightness of my screen up and down, usually on
- startup. Along with this the notification area brightness overlay (which
- fades in when you adjust the brightness) goes nuts.
+ startup and when it attempts to dim the screen. Along with this the
+ notification area brightness overlay (which fades in when you adjust the
+ brightness) goes nuts.
  
  The problem is stopped by using the brightness hard-keys on my netbook.
  
  Whilst this is a beta it's not healthy for the backlight - beta or not,
  OS code shouldn't be able  to damage hardware.
  
  Description:	Ubuntu Natty (development branch)
  Release:	11.04
  
- All updates installed. Happens before and after update center is run.
+ All updates installed. Bug is present before and after update center is
+ run.

** Description changed:

  I have a Samsung N130 netbook and Ubuntu occasionally and erratically
  flickers the backlight brightness of my screen up and down, usually on
- startup and when it attempts to dim the screen. Along with this the
+ startup and when it attempts to dim the screen on idle (even though, for
+ some reason, this option isn't enabled). Along with this the
  notification area brightness overlay (which fades in when you adjust the
  brightness) goes nuts.
  
  The problem is stopped by using the brightness hard-keys on my netbook.
  
  Whilst this is a beta it's not healthy for the backlight - beta or not,
  OS code shouldn't be able  to damage hardware.
  
  Description:	Ubuntu Natty (development branch)
  Release:	11.04
  
  All updates installed. Bug is present before and after update center is
  run.

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https://bugs.launchpad.net/bugs/756509

Title:
  N130 flickering backlight on startup




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