I have seem this bug on my Lenovo 3000-V200 laptop too! Battery is drained very fast! With Lenny, my battery go to 10% after ~3,5h but with Squeeze the battery go to 10% after 2,5h. And powertop show me a strange value: Uso de energia (estimado por ACPI): 191,6 W (0,2 horas) 191,6W?????? $ dpkg -l | grep linux-image ii linux-image-2.6-686 2.6.30+20 ii linux-image-2.6.30-1-686 2.6.30-6