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[Bug 685727] Re: When i upgraded to 10.10 the screen on my laptop(Gateway nv79) went completely black and I could not see anything unless I held a flashlight to the screen to see. The only way I am able to fix this is issue is by doing a system test. But as soon as my laptop goes to sleep it goes back to the black screen. I could not find another fix because once I did the system testing for 10.10 it would not allow me to do the testing again to fix it.

To: ubuntu-x-swat@xxxxxxxxxxxxxxxxxxx
From: Daudi Amani <685727@xxxxxxxxxxxxxxxxxx>
Date: Mon, 17 Jan 2011 23:32:56 -0000
Reply-to: Bug 685727 <685727@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

weird but effective workaround: Do this in a working displayable kernel (for me: 2.6.32-27):
system > preferences > power management
"On AC Power" tab; "DISPLAY" section: "set display brightness to:"  change from 100% to 85%.
then reboot to kernel 2.6.35-24 .. and the backlight is on and everything displays great!

BTW: I was referencing http://forums.opensuse.org/english/get-help-here
/install-boot-login/449999-black-screen-boot-surprise.html thread
thinking that it is a power management issue.

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https://bugs.launchpad.net/bugs/685727

Title:
  When i upgraded to 10.10 the screen on my laptop(Gateway nv79) went
  completely black and I could not see anything unless I held a
  flashlight to the screen to see. The only way I am able to fix this is
  issue is by doing a system test. But as soon as my laptop goes to
  sleep it goes back to the black screen. I could not find another fix
  because once I did the system testing for 10.10 it would not allow me
  to do the testing again to fix it.

References

[Bug 685727] [NEW] When i upgraded to 10.10 the screen on my laptop(Gateway nv79) went completely black and I could not see anything unless I held a flashlight to the screen to see. The only way I am able to fix this is issue is by doing a system test. But as soon as my laptop goes to sleep it goes back to the black screen. I could not find another fix because once I did the system testing for 10.10 it would not allow me to do the testing again to fix it.
From: jazz41408, 2010-12-06