On 07/24/2014 03:53 PM, Pietro Sammarco wrote:
Hello people, I have recently bought a brand new Acer chromebook c720 which I am using with ArchLinux. Ever since I wiped out ChromeOS to install ArchLinux I realized a smell of electronic burning coming from it. Digging around I have realized lm-sensors does not detect the fan. The chipset is a Lynx Point (PCH), therefore as according the wiki it should work with the i2c-i801. I am going to attach a bit of informations below. Linux chromebookC720 3.16.0-1-mainline-chromebook #1 SMP PREEMPT Mon Jul 14 22:04:51 NZST 2014 x86_64 GNU/Linux [latrina@chromebookC720 ~]$ sudo i2cdetect -l i2c-0 i2c i2c-designware-pci I2C adapter i2c-1 i2c i2c-designware-pci I2C adapter i2c-2 smbus SMBus I801 adapter at 0400 SMBus adapter
Well, it does, as you can see here. Problem is that the fan controller is not detected, which suggests that ChromeOS includes a fan controller driver for your system which is not included in the upstream kernel and thus not in ArchLinux. Detecting and instantiating the SMBus controller won't help you with detecting the fan controller, much less with installing a driver for it. You could try to get the ChromeOS kernel source, figure out how they control the fans, and port the necessary code to ArchLinux. I don't know if there is anything else you could do. Guenter _______________________________________________ lm-sensors mailing list lm-sensors@xxxxxxxxxxxxxx http://lists.lm-sensors.org/mailman/listinfo/lm-sensors
