Hi,

As a solution for nVidia Optimus laptops, we found a way. We have to launch "optirun <app>" to launch the app with the nvidia card.

The other way is to create a KDM session, which run /usr/bin/vglrun -d :1 /usr/bin/startkde so all apps will be launched with nVidia card. BUT , using this way (or the other one actually...), KDE doesn't have fancy effects

Is there a way to enable it ?

Are you using the latest version of Bumblebee or an older version? I know some problems have been reported trying to get KWin to use the nVidia card on those laptops (possibly due to incorrect screen information)

Hi,

I'm using git-20110519 of bumblebee. Arch distribution, arnaldo.coelho's package .

The 3D accelerated server is launch on :1 display.

As I said, I use usr/bin/vglrun -d :1 /usr/bin/startkde to launch KDE .

IMHO, kdm is launch on :0 display, and then KDE launched on :1 display.

So we have to launch KWin on :1 , else it will be launched on :0 (non-nVidia display)

As long as DISPLAY=:1 then KWin should use that display... in theory anyway.
Try enabling debug areas using "kdebugdialog" then running KWin as follows:

Code: Select all

DISPLAY=:1; kwin --replace &

Ok thanks, i'll fix a problem non related to KDE, then i'll try and feedback here