El domingo me encontré con este mismo caso y el log del pm-powersave me daba esto que sigue, pero actualmente ese log está _vacío_ .
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Running hook /usr/lib/pm-utils/power.d/95hdparm-apm false:
/dev/sda:
setting Advanced Power Management level to 0xfe (254)
APM_level = 254
/usr/lib/pm-utils/power.d/95hdparm-apm false: success.
Running hook /usr/lib/pm-utils/power.d/anacron false:
/usr/lib/pm-utils/power.d/anacron false: success.
Running hook /usr/lib/pm-utils/power.d/disable_wol false:
Setting Wake On Lan for eth0 to enable...Done.
/usr/lib/pm-utils/power.d/disable_wol false: success.
Running hook /usr/lib/pm-utils/power.d/intel-audio-powersave false:
Setting power savings for snd_hda_intel to 0...Done.
/usr/lib/pm-utils/power.d/intel-audio-powersave false: success.
Running hook /usr/lib/pm-utils/power.d/laptop-mode false:
Laptop mode disabled.
/usr/lib/pm-utils/power.d/laptop-mode false: success.
Running hook /usr/lib/pm-utils/power.d/pci_devices false:
Setting Host Bridge 0000:00:00.0 to on
Setting Audio device 0000:00:1b.0 to on
Setting Ethernet device 0000:02:00.0 to on
Setting Wireless device 0000:03:00.0 to on
/usr/lib/pm-utils/power.d/pci_devices false: success.
Running hook /usr/lib/pm-utils/power.d/pcie_aspm false:
sh: echo: I/O error
/usr/lib/pm-utils/power.d/pcie_aspm false: success.
Running hook /usr/lib/pm-utils/power.d/sata_alpm false:
Setting SATA ALPM on host0 to max_performance...Done.
Setting SATA ALPM on host1 to max_performance...Done.
Setting SATA ALPM on host2 to max_performance...Done.
Setting SATA ALPM on host3 to max_performance...Done.
Setting SATA ALPM on host4 to max_performance...Done.
Setting SATA ALPM on host5 to max_performance...Done.
/usr/lib/pm-utils/power.d/sata_alpm false: success.
Running hook /usr/lib/pm-utils/power.d/sched-powersave false:
**sched policy powersave OFF
/usr/lib/pm-utils/power.d/sched-powersave false: success.
Running hook /usr/lib/pm-utils/power.d/usb_bluetooth false:
Setting /sys/bus/usb/devices/1-1.3 to on
/usr/lib/pm-utils/power.d/usb_bluetooth false: success.
Running hook /usr/lib/pm-utils/power.d/wireless false:
cat: /sys/class/net/wlan0/device/enabled: No existe el fichero o el directorio
/usr/lib/pm-utils/power.d/wireless false: success.
Running hook /usr/lib/pm-utils/power.d/xfs_buffer false:
/usr/lib/pm-utils/power.d/xfs_buffer false: not applicable.
Running hook /usr/lib/pm-utils/power.d/95hdparm-apm false:
/dev/sda:
setting Advanced Power Management level to 0xfe (254)
APM_level = 254
/usr/lib/pm-utils/power.d/95hdparm-apm false: success.
Running hook /usr/lib/pm-utils/power.d/anacron false:
/usr/lib/pm-utils/power.d/anacron false: success.
Running hook /usr/lib/pm-utils/power.d/disable_wol false:
Setting Wake On Lan for eth0 to enable...Done.
/usr/lib/pm-utils/power.d/disable_wol false: success.
Running hook /usr/lib/pm-utils/power.d/intel-audio-powersave false:
Setting power savings for snd_hda_intel to 0...Done.
/usr/lib/pm-utils/power.d/intel-audio-powersave false: success.
Running hook /usr/lib/pm-utils/power.d/laptop-mode false:
Laptop mode disabled.
/usr/lib/pm-utils/power.d/laptop-mode false: success.
Running hook /usr/lib/pm-utils/power.d/pci_devices false:
Setting Host Bridge 0000:00:00.0 to on
Setting Audio device 0000:00:1b.0 to on
Setting Ethernet device 0000:02:00.0 to on
Setting Wireless device 0000:03:00.0 to on
/usr/lib/pm-utils/power.d/pci_devices false: success.
Running hook /usr/lib/pm-utils/power.d/pcie_aspm false:
sh: echo: I/O error
/usr/lib/pm-utils/power.d/pcie_aspm false: success.
Running hook /usr/lib/pm-utils/power.d/sata_alpm false:
Setting SATA ALPM on host0 to max_performance...Done.
Setting SATA ALPM on host1 to max_performance...Done.
Setting SATA ALPM on host2 to max_performance...Done.
Setting SATA ALPM on host3 to max_performance...Done.
Setting SATA ALPM on host4 to max_performance...Done.
Setting SATA ALPM on host5 to max_performance...Done.
/usr/lib/pm-utils/power.d/sata_alpm false: success.
Running hook /usr/lib/pm-utils/power.d/sched-powersave false:
**sched policy powersave OFF
/usr/lib/pm-utils/power.d/sched-powersave false: success.
Running hook /usr/lib/pm-utils/power.d/usb_bluetooth false:
Setting /sys/bus/usb/devices/1-1.3 to on
/usr/lib/pm-utils/power.d/usb_bluetooth false: success.
Running hook /usr/lib/pm-utils/power.d/wireless false:
cat: /sys/class/net/wlan0/device/enabled: No existe el fichero o el directorio
/usr/lib/pm-utils/power.d/wireless false: success.
Running hook /usr/lib/pm-utils/power.d/xfs_buffer false:
/usr/lib/pm-utils/power.d/xfs_buffer false: not applicable.
114,0-1 Todo
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He
instalado el laptop-mode que parece haber desaparecido desde la nueva
actualización. He puesto, como he visto recomendado en alguna web (
http://www.cyberciti.biz/faq/linux-laptop-power-saving/) : sudo echo 5 > /proc/sys/vm/laptop_mode
pero esto no parece surtir ningún efecto.