Dear PowerTOP folks,
looking at the output of PowerTOP (version 1.97) on every system I
looked at »Runtime PM for PCI Device …« is marked as bad.
I know that I can enable it by hitting return in PowerTOP or by
executing the following command [1].
echo auto > /sys/bus/pci/devices/*/power/control
But I wonder why this is not enabled by default? What userspace program
would be responsible to enable this? I cannot imagine that users should
write scripts or edit start up files to enable this. A Linux kernel
option to turn this on globally would be nice to have. Does that exist?
Thanks,
Paul
[1]
http://serverfault.com/questions/279527/powertop-reports-bad-runtime-pm-for-pci-device
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