Here's a update for this bug.. kinda lame workaround but it work!
when the screen is black switch to tty1 CTRL+ALT+F1 , login then
sudo /etc/init.d/gdm restart
it should restart gnome and everything should be fine until the next
battery power boot (repeat each boot).
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This bug has been solved with kernel v2.6.37-rc2-maverick
See my post on ubuntuforums how to fix this problem:
http://ubuntuforums.org/showpost.php?p=10292993postcount=5
regards,
laurent
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fixed in kernel 2.6.37-rc2
** Changed in: linux (Ubuntu)
Status: Triaged = Fix Released
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https://bugs.launchpad.net/bugs/578119
Title:
Boot on battery power ends up with black
I have the same problem with my HP TX2000 (black screen on gnome login
but otherwise boots ok on AC power). Please help us! A laptop without
battery support is useless :(
Any progression on this issue ?
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Same problem with my HP TX2104CA with NVIDIA 173 and 260 proprietary
drivers ... same thing on the linux mint distro. No problem with AC boot
or default lack-of-3D-acceleration driver.
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Boot on battery power ends up with black screen [HP tx1000]
https://bugs.launchpad.net/bugs/578119
You