Regarding thermald: I have installed it and if I understand the manual correctly, it can only act with fans that are already registered in sysfs as cooling devices.
If I go to /sys/class/thermal I have two cooling_devices (the CPU and the LCD, no fans here). The CPU's cur_state affects throttling, while the LCD's controls brightness. If I write 90000 (90 °C) to thermal_zone0's emul_temp, the system becomes really slow (throttling at work), but the fan does not react (I assume it's controlled purely by BIOS because of the suspend/wake-up cycle). So I believe the real issue here is that linux does not see the fan control and leaves the control to the BIOS (which is fine for me) after a wakeup, but still it stops the fan while starting the kernel (which sounds like a bug to me), apparently deactivating BIOS' own fancontrol routine. (Maybe it accidentally writes to the same register as Acer's fancontrol application, signaling the BIOS that fancontrol is now running, but this is pure speculation.) -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/728733 Title: fan only works when my acer 5315 is booted then stops Status in acpi package in Ubuntu: Confirmed Status in linux package in Ubuntu: Incomplete Bug description: Binary package hint: acpi fan only works when my acer 5315 is booted then stops.i have a acer aspire 5315 laptop. My fan stopped working after installing ubuntu from vista. ive changed it for a new one and still the same problem. no dust aswel. please help ProblemType: Bug DistroRelease: Ubuntu 10.10 Package: acpi 1.5-2 ProcVersionSignature: Ubuntu 2.6.35-22.33-generic 2.6.35.4 Uname: Linux 2.6.35-22-generic i686 Architecture: i386 Date: Thu Mar 3 22:18:12 2011 EcryptfsInUse: Yes InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007) ProcEnviron: LANG=en_GB.utf8 SHELL=/bin/bash SourcePackage: acpi To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/acpi/+bug/728733/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
