ubuntu-x-swat team mailing list archive

[Rocko <rockorequin@xxxxxxxxxxx>]

My guess is that the problem is much worse than just lack of driver
support, because if you can't turn the intel card off via the BIOS, you
can't use the nvidia card because the video output is driven by the
intel card, meaning it's not as simple as just writing a driver for the
nvidia card - you also need to be able to copy the output back to the
intel card's framebuffer. (eg look
http://ubuntuforums.org/showthread.php?t=1657660.)

The root cause is actually that there is no support for optimus in
either the proprietary or open-source drivers, and there is unlikely to
be any for some time because (a) nvidia are refusing to support it or to
provide information about how to support it, and (b) you simply cannot
turn it off unless there is hardware support switchable via the BIOS to
do so. It's a complete disaster for nvidia cards in linux.

-- 
You received this bug notification because you are a member of Ubuntu-X,
which is subscribed to xserver-xorg-video-nv in Ubuntu.
https://bugs.launchpad.net/bugs/700646

Title:
  nVIDIA 425M (with Optimus) is not detected