Ubuntu
linux package

  1. Bug #760131
  2. Comment #244

Comment 244 for bug 760131

Revision history for this message
Lorenzo Bettini (bettini) wrote :

my laptop does not seem to support ASPM:

dmesg | grep ASP
[ 0.963968] ACPI FADT declares the system doesn't support PCIe ASPM, so disable it
[ 1.328171] ACPI _OSC control for PCIe not granted, disabling ASPM

but it looks like it supports epb:

dmesg | grep ENE
[ 0.000241] ENERGY_PERF_BIAS: Set to 'normal', was 'performance'

so what could I do to reduce power consumption? with Linux battery lasts less than 2 hours, in windows lasts almost 5 hours!