high temperature in AMD based laptop
hi, one of my laptop have AMD RAEDON
$lspci|grep VGA
00:01.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Trinity [Radeon HD 7640G]
it continiously shows high temperature even when very little job is running. for example, the load :
top - 21:57:30 up 1:16, 2 users, load average: 0.76, 0.89, 0.77
Tasks: 165 total, 1 running, 164 sleeping, 0 stopped, 0 zombie
%Cpu(s): 5.8 us, 4.5 sy, 0.0 ni, 88.7 id, 0.2 wa, 0.6 hi, 0.2 si, 0.0 st
KiB Mem: 7558420 total, 2099340 used, 5459080 free, 63428 buffers
yields temperature:
$ sensors
acpitz-virtual-0
Adapter: Virtual device
temp1: +74.0°C (crit = +255.0°C)
radeon-pci-0008
Adapter: PCI adapter
temp1: +70.0°C
k10temp-pci-00c3
Adapter: PCI adapter
temp1: +74.4°C (high = +70.0°C)
(crit = +100.0°C, hyst = +99.0°C)
is there any wayout? in my main laptop with hybrid graphics (intel+nvidia), this problem was solved by bumblebee. what is the alternative for AMD?
If you are using the default Radeon open source driver, maybe you are looking for enabling dynamic power management (look here or here). It's available from the linux 3.11 kernel but it will be enabled by default from the linux 3.13 kernel.
Does your laptop have hybrid graphics ?
no...its not hybrid, as lspci|grep VGA as posted above is showing
Have you tried using the proprietary driver AMD Catalyst? It's not free software, but it has power management enabled (but be careful each time you update key components like the kernel).