Whenever I try to boot Ubuntu Linux with an external monitor attached to my laptop, it hangs after checking the battery state with the following message repeated several times:


The only solution is to boot without the monitor attached, then attach it, and readjust my settings (turning off laptop screen, etc).

Some have told me this is a kernel issue, others just shrug.

Any ideas for a solution?

  • 1
    A stab in the dark: are there any related BIOS settings? Oh, this bug report links it to drm and the Nouveau driver...and includes a debugging hint, i.e, booting with drm.debug=1 in the kernel command line – sr_ Apr 25 '12 at 13:58
  • Unfortunately, there are no Bios settings related to my Graphics Card. I have an Asus N53SN which has Optimus (meaning an Intel AND an Nvidia card). And I use bumblebee to disable the nvidia card (to conserve power). – Musaab Apr 25 '12 at 14:21
  • Hmm since this is pretty recent hardware, consider filing a bug report... I'm just not sure where to file it. Bumblebee is stated to be "under heavy development", maybe this is the place to go to (just guessing). – sr_ Apr 25 '12 at 14:52

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