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I'm using Ubuntu 12.10 and found that after about 20 minutes of work that my mouse and keyboard became very unresponsive. So I found the following fix (logging in as root - careful!!!):

sudo -i

To test if this is the problem:

echo N> /sys/module/drm_kms_helper/parameters/poll

To make the fix permanent:

echo "options drm_kms_helper poll=N">/etc/modprobe.d/local.conf

It appears that the fix does work, but what does this do? Am I breaking something else in doing this?

I don't like changing default settings without knowing what it's doing, so I just want to find out what this does, and if it may have any adverse side-effects.

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Cool, question is updated to make my intentions clearer –  JacobusR Dec 19 '12 at 20:05

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