Try not to use the enable/disable scripts of bumblebee. There is one to switch the card off on startup. Probably is messing around with the output and module loading. -- Joaquín Ignacio Aramendía <[email protected]>
El vie, 17-06-2011 a las 13:28 +0300, Moshe Nissim escribió: > 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
