Comment 14 for bug 578119

I have some new information on this bug.

First I tested on my HP tx2000 with Maverick and the latest updates and Nvidia version 260.19.12. Same result, black screen after a battery boot, ok on AC power.

Then I tested with an upstream kernel as requested by Jeremy Foshee in post 3 above. I downloaded linux-image-2.6.36-020636-generic_2.6.36-020636.201010210905_i386.deb and sources and installed it. Next I did a manual install of the Nvidia driver version 260.19.12.

The result is that my tx2000 now boots through to a normal X server screen with a battery boot! So I think this shows the problem is related to a regression in the Ubuntu kernel patches, especially as it also works ok in Ubuntu 9.10.

I hope this result can moves things forward a little bit to a solution.