Ubuntu
linux package

  1. Bug #1247967
  2. Comment #7

Comment 7 for bug 1247967

Revision history for this message
Jamin W. Collins (jcollins) wrote : Re: nvidia optimus chipset disabled when running on battery, even in discrete mode

As a baseline, the 3.8 kernel works normally, with text displays on all six vts. Both the 3.9 and 3.10 kernel's fail in different ways and to different degrees.

3.9
- does not work first boot (poweroff or reboot)
- works (if power drained, battery removed)
- no console display (vts 1-6)
- reboot via C+A+D still works

3.10
- no display at all, regardless

Going back to 3.8 required full power drain (battery removal) and two reboots.