Comment 70 for bug 1310023

Alberto wrote:
> > Please file a bug report against bbswitch.

Hamish wrote:
> submitted as launchpad bug #1338404

on that ticket, Peter Wu wrote:
> bbswitch is a module for Optimus laptops, not desktops (except an
> odd, single all-in-one). The i7-3770 is a desktop processor, so
> bbswitch will not work here.

and closed it as invalid. (fair enough)
I guess the bbswitch package should be removed from this system which does not have the target hardware.
(in that case nvidia-prime would need to be removed too since it's a dependency)

`nvidia-settings` still fails with:
"""
** Message: PRIME: Requires offloading
** Message: PRIME: is it supported? yes

ERROR:
"""

any hints on what to try next? Or am I barking up the wrong tree here? Is PRIME solely meant for switching between video cards A and B for power/perfomance switching on a laptop, instead of having video cards A and B running at the same time as part of a multi-head desktop workstation setup like I'm trying to do?

even if so, more than a blank error message would be nice to save us all some time.

ah, perhaps a clue to my confusion:

The X/Config/HybridGraphics page in the Ubuntu Wiki does not define what "hybrid" means, and indicates that nvidia-prime is the right thing to use for multihead workstations with both integrated and discrete video, at least by my reading of the introduction. (I'd also note the wiki is out of date with respect to the nvidia-common package, which has now been replaced and is just a wrapper package depending on the new package name)
  https://wiki.ubuntu.com/X/Config/HybridGraphics

Digging deeper, an older wiki page is mentioning laptops specifically wrt "hybrid", so in that light makes some sense.
  https://help.ubuntu.com/community/HybridGraphics

If this isn't the right venue, any tips on where I should go from here?
Would I be best to follow up on this error from X.log.0?

[ 18.653] (II) LoadModule: "nvidia"
[ 18.653] (WW) Warning, couldn't open module nvidia
[ 18.653] (II) UnloadModule: "nvidia"
[ 18.653] (II) Unloading nvidia
[ 18.653] (EE) Failed to load module "nvidia" (module does not exist, 0)

thanks for all your help,
Hamish