I can confirm this issue on a Dell Vostro 1520 as the original poster. This is using Maverick with updates as of 2011-01-20. The suggested workaround (rmmod dell_laptop) works as posted.
I can confirm this issue on a Dell Vostro 1520 as the original poster. This is using Maverick with updates as of 2011-01-20. The suggested workaround (rmmod dell_laptop) works as posted.