Ubuntu
acpi-support package

  1. Bug #40034
  2. Comment #12

Comment 12 for bug 40034

Revision history for this message
Geoff Hoff (gahoff) wrote :

Edit /etc/laptop-mode/laptop-mode.conf and change CONTROL_HD_WRITECACHE=1 to CONTROL_HD_WRITECACHE=0.

That fixed it for me.