I have an ASUS A55V which comes with the infamous nVidia Optimus chipset. I installed bumblebee, and tested it correctly with
optirun glxspheres. The problem is that I cannot change the screen resolution, from both the nVidia Panel and the Ubuntu Display utility, which is fixed at 640x480. The strange thing is that if I attach an external monitor, it's correctly detected and I can configure it normally with a decent resolution.
Laptop screen's resolution is fixed no matter if the external monitor is plugged in or not. And a curious thing is that even if the external monitor is unplugged, it still shows at the nVidia settings...
Any hints on how to solve this?
xrandr seems to work to add a new resolution and set it up, but the display is limited to the center of the screen. Here's a screenshot so you know what I mean:
Thanks in advance