我安装了 ubuntu 14.04.2，我的笔记本电脑过热得非常快，有时会挂起（冻结）——根本没有反应，所以我只能手动关机。
这是我在相关主题中找到的一些命令的结果，但它们并没有告诉我太多信息。请帮助我
cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor sysctl -n vm.laptop_mode
1 performance
2 performance
3 performance
4 performance
cat: sysctl: No such file or directory
安装 lm 传感器：
sudo apt-get install lm-sensors
sudo sensors-detect
对所有输入 YES => 执行传感器：
coretemp-isa-0000
Adapter: ISA adapter
Physical id 0: +64.0°C (high = +86.0°C, crit = +100.0°C)
Core 0: +64.0°C (high = +86.0°C, crit = +100.0°C)
Core 1: +63.0°C (high = +86.0°C, crit = +100.0°C)
cat /sys/class/thermal/thermal_zone0/temp
65000
显卡驱动程序信息：
*-display
description: VGA compatible controller
product: GF108M [GeForce GT 540M]
vendor: NVIDIA Corporation
physical id: 0
bus info: pci@0000:01:00.0
version: a1
width: 64 bits
clock: 33MHz
capabilities: vga_controller bus_master cap_list rom
configuration: driver=nvidia latency=0
resources: irq:55 memory:d0000000-d0ffffff memory:a0000000-afffffff memory:b0000000-b1ffffff ioport:2000(size=128) memory:d1000000-d107ffff
*-display
description: VGA compatible controller
product: 2nd Generation Core Processor Family Integrated Graphics Controller
vendor: Intel Corporation
physical id: 2
bus info: pci@0000:00:02.0
version: 09
width: 64 bits
clock: 33MHz
capabilities: vga_controller bus_master cap_list rom
configuration: driver=i915 latency=0
resources: irq:48 memory:d1400000-d17fffff memory:c0000000-cfffffff ioport:3000(size=64)