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Old 02-02-2014, 09:44 PM   #1
rl23455
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Linux Mint 15 lm-sensors ASUS A55M-E motherboard


I tried to use lm-sensors on Linux Mint 15 ASUS A55M-E motherboard, AMD CPU, but lm-sensors does not detect anything. When I look on the lm-sensors website it says it is for kernal 2.6, but Linux Mint 15 I believe is 3.8(according to uname). I ran sensors-detect and it could not find anything. I did an install of Conky, but can't find it in my apps folder to run.
Just want to monitor cpu temp, fans would be nice. ASUS website does not have anything.
thanks
Tom
 
Old 02-03-2014, 10:13 AM   #2
JeremyBoden
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Try using the
inxi -C -v 5 command - this will show a lot of detail (including temperature and Kernel version)...

Quote:
Code:
jeremy@hector:~$ inxi -C -v 5
System:    Host hector Kernel 3.10-2-amd64 x86_64 (64 bit) Distro LinuxMint 1 debian
CPU:       Dual core AMD Athlon 64 X2 3800+ (-MCP-) cache 1024 KB flags (lm nx sse sse2 sse3) 
           Clock Speeds: (1) 1000.00 MHz (2) 1000.00 MHz
Graphics:  Card NVIDIA GT218 [GeForce 210] X.Org 1.12.4 Res: 1920x1080@60.0hz 
           GLX Renderer GeForce 210/PCIe/SSE2 GLX Version 3.3.0 NVIDIA 304.88
Audio:     Card-1 NVIDIA High Definition Audio Controller driver snd_hda_intel
           Card-2 NVIDIA CK804 AC'97 Audio Controller driver snd_intel8x0
           Sound: Advanced Linux Sound Architecture Version k3.10-2-amd64
Network:   Card-1 NVIDIA CK804 Ethernet Controller driver forcedeth
           Card-2 Qualcomm Atheros AR5212/AR5213 Wireless Network Adapter
Disks:     HDD Total Size: 1250.3GB (29.6% used) 1: /dev/sda ST31000333AS 1000.2GB 
           2: /dev/sdb SAMSUNG_SP2504C 250.1GB 
Partition: ID:/ size: 48G used: 13G (27%) fs: ext4 ID:/home size: 94G used: 20G (23%) fs: ext4 
Sensors:   System Temperatures: cpu: 31.0C mobo: 39.0C gpu: 36C 
           Fan Speeds (in rpm): cpu: 1074 sys-1: 0 
Info:      Processes 163 Uptime 50 min Memory 819.2/2012.4MB Client Shell inxi 1.4.23
 
Old 02-04-2014, 02:04 AM   #3
gradinaruvasile
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AMD APU's have a kernel module that reports temperatures - k10temp. Make sure its loaded, it should show up in sensors (if not, do a 'sensors-detect' or just 'modprobe k10temp'). But temps reported by this module are not real temperatures - they are taken from the CPU temp monitor and are used internally for thermal throttling etc. On low usage they report very low temperatures, around 0 C or lower. With increased activity they become more precise, but i dont know if they will ever show real real temps.
The same goes for the integrated GPUs - they provide a sensor output through the radeon driver, but that works pretty much like the above k10temp does.

Now, if you are lucky, the mobo itself might have some supported monitoring chip - usually they are ITE chips and monitor lots of stuff, all voltage levels, fan speeds and provide a "real" temperature, usually from a probe that is located under the CPU. These chips can be seen on the mobo, they have a big ITE label then some numbers. This chip is used for the temperatures shown in the BIOS/UEFI - But keep in mind that when you are in there, there is no dynamic throttling, meaning the chip is at its top speed and will have higher temps when idling there as opposed when the OS is loaded and lowers its speed dynamically when not needed.
Unfortunately not all are supported by the it87 kernel module and from what i have heard, ITE ceased to give datasheets to the lm-sensors developers.

I previously had a Gigabyte F2A85X-D3H FM2 mobo and that had some IT8700 series it87-compatible chip. Now i have a F2A88X-D3H FM2+ mobo (with FM2 APU) and it has a chip labeled "IT8620" that isnt supported (despite its lower model number) and im stuck with the k10temp+radeon output and no voltage/fan speed readings.

As far as i remember, the k10temp module after a few minutes of high usage (using all 4 threads of my A8, for example compiling) reported 40-45 C, and the ITE chip reported something like 50-55 (with the stock fan...).
Using the open source radeon driver temperatures are lower when the CPU is in use than with fglrx mainly because the CPU doesnt use the turbo speed for some reason (with fglrx it does).
 
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