I also have the same problem on my HP Compaq Presario F762AU after a fresh install of Jaunty Jackalope.
On battery, Grub will load, then when the usplash screen should be loaded, nothing happens, until I press the "Enter" button which makes the bar run again. After disabling the splash screen, I could not find any line in the boot up process that indicates a problem. Again, I must press the "Enter" button until all processes have loaded. Hardy Heron did not give me such problems before. I previously ran Intrepid Ibex as a Live Session, and this exact problem struck my laptop. A factor which stopped me from upgrading. I did not install nor run Jaunty Jackalope while on battery power, so this problem escaped my notice until I used my laptop sans AC power. -- HP Pavilion dv9000 hangs on boot if power is not plugged in https://bugs.launchpad.net/bugs/364232 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs