Okay, so as the title says, I run Ubuntu 10.04. The problem is that when I boot it on battery, it doesn't come on. I see a blank screen completely. Sometimes, the Ubuntu splash is visible for a couple of seconds.
Ubuntu boots normally on AC power. But if I unplug it after I boot it up, it runs perfectly too. I can suspend it, log off, everything. I have no graphics card problem, and it doesn't seem that my problem is related to that.
I also run Windows Vista, and it runs perfectly, as it should.
If it would help, I am running an HP tx2001au laptop/tablet. Here are my specs:
CPU: AMD Turion 64x2 TL-58 (1.9 GHz) RAM: 2 GB GPU: nVidia GeForce 6150 Go