On 14/6/11 4:20 PM, Albert Vilella wrote: > > Right now there is no way of ignoring the intel graphics driver other > than directly from the BIOS, and only in certain models, but with the > optimus bumblebee you *are* using nvidia hardware *and* nvidia drivers > for all the applications you call with optirun. There is a penalty in > using VirtualGL routing, but other than that, it does use the nvidia > drivers, that are on-par with the Windows drivers in performance. > > It would be useful if you could run this on Windows and Linux > bumblebee to check the performance difference: I tried to make this work, but I'm encountering a problem unrelated to bumblebee. I know this may be the wrong thread to ask, but maybe people already solved it.
First step is to make the Intel driver work with Xorg and have a working LCD display. (without yest starting the second Xorg for the nVidia card). This goes wrong. The LCD gets corrupted during boot, even before Xorg is started. (In fact, I disabled Xorg for the moment, by going to runlevel 3 instead of 5). It seems to happen late in the boot, I think at the moment i915 kicks in and does the modesetting. The LCD goes into a strange state, three-quarters of it is black, and the right-hand quarter is alternating white and black lines. The image is steady. "underneath" everything works, the boot completes, and I can even start Xorg with the intel driver. Its just that the actual displayed image remains bad. It does not even 'blink' when Xorg starts. If I disable modesetting altogether (kernel command-line arg nomodeset) the corruption is gone, but the intel xorg driver refuses to work. I think I read somewhere that on later versions (which I must use, having a Sandybrdige graphics hardware), kernel-mode-setting is a requirement for it to work. Again, this is a Dell Latitude E6420. Anyone encountering a similar problem? _______________________________________________ Mailing list: https://launchpad.net/~hybrid-graphics-linux Post to : [email protected] Unsubscribe : https://launchpad.net/~hybrid-graphics-linux More help : https://help.launchpad.net/ListHelp
