On 05/27/2010 01:47 PM, Jerry Geis wrote: > I have centos 5.4 on an HP laptop, as below the /proc/cpuinfo shows Dual > core, > however, there is only 1 processor listed in /proc/cpuinfo. > > Is the OS only using a single core? > > jerry > What's the status of ACPI? Is it enabled in the bios? Is the acpi service installed and running?