Ironhide initial tests failed, Dell Inspiron N5110

[claudiu725]

However, the whole thing works (albeit with a few errors). Using the config by Branko Vukelic (the one confirmed by 21 users)

lwolf@lwolf-Inspiron-N5110:~$ glxgears 
Running synchronized to the vertical refresh.  The framerate should be
approximately the same as the monitor refresh rate.
302 frames in 5.0 seconds = 60.298 FPS
301 frames in 5.0 seconds = 60.166 FPS
301 frames in 5.0 seconds = 60.137 FPS
301 frames in 5.0 seconds = 60.136 FPS
301 frames in 5.0 seconds = 60.139 FPS
XIO:  fatal IO error 11 (Resource temporarily unavailable) on X server ":0"
      after 3087 requests (3087 known processed) with 0 events remaining.
lwolf@lwolf-Inspiron-N5110:~$ optirun glxgears
2723 frames in 5.0 seconds = 544.554 FPS
2892 frames in 5.0 seconds = 578.369 FPS
2724 frames in 5.0 seconds = 544.746 FPS
2856 frames in 5.0 seconds = 570.961 FPS
2680 frames in 5.0 seconds = 535.695 FPS
 * Stopping Ironhide X server ironhide                                          NVOP Disabling nVidia Card failed (Error: AE_NOT_FOUND).
_PS3 Disabling nVidia Card failed (Error: AE_NOT_FOUND).
                                                                         [ OK ]
lwolf@lwolf-Inspiron-N5110:~$ 

[Lekensteyn]

ACPI calls are deprecated because of this kind of issues.

Try Bumblebee as described in http://askubuntu.com/a/36936/6969 (for upgrading, see http://wiki.bumblebee-project.org/Upgrading-on-Ubuntu)