I can also confirm that the above solves the problem. Apparently the kernel does not know what state are the fans in. This can be solved by turning them on and off for a brief period of time. Note that this does not turn the fans off permanently, the cooling is not affected and the fans continue to work normally. (Well, at least on my laptop.)
Here is the script above again made more general which scans all laptops: touch /etc/pm/sleep.d/99fancontrol.sh chmod +x /etc/pm/sleep.d/99fancontrol.sh cat > /etc/pm/sleep.d/99fancontrol.sh #!/bin/sh # # https://bugs.launchpad.net/ubuntu/+source/linux-source-2.6.17/+bug/77370 # file /etc/pm/sleep.d/99fancontrol.sh case "$1" in hibernate|suspend) # Stopping is not required. ;; thaw|resume) # In background. ls /sys/devices/virtual/thermal/cooling_device*/cur_state | while read A; do echo 1 > $A; echo 0 > $A; done ;; *) exit $NA ;; esac -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/77370 Title: Laptop Fan always on after resume from suspend to RAM To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/acpi/+bug/77370/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
