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索尼笔记本电脑经常发热。如何解决？

tag-icon • tag-icon vaio overheating
索尼笔记本电脑经常发热。如何解决？

我有一台 Sony Vaio pcG-392M。显卡是“GeForce 8400M GT”。我大部分时间都在它上面使用 XBMC。Ubuntu 12.04。内核 3.2.0-33-generic-pae。

问题：

风扇大部分时间都开着。CPU 保持在 70C，在 PC 开启几分钟后就会变得很热，即使机器处于空闲状态，温度也不会下降。

我更新了 Nvidia 驱动程序，安装了传感器和powertop，但无法找出导致即时负载的原因。以下是两者的输出：

传感器：（机器播放音乐20分钟才有输出，重启后一般是70）

acpitz-virtual-0 Adapter: Virtual device  

temp1: +94.0°C (crit =+127.0°C) 
temp2: +94.0°C (crit = +105.0°C) 
coretemp-isa-0000 Adapter: ISA adapter Core 0: +92.0°C (high = +100.0°C, crit = +100.0°C)
Core 1: +92.0°C (high = +100.0°C, crit = +100.0°C)

powertop- 概述：

Usage Events/s Category Description
100.0% Device Audio codec hwC0D0: SigmaTel 
1.9 ms/s 87.1 Interrupt [6] tasklet(softirq) 
60.2 µs/s 27.4 kWork ieee80211_iface_work 
160.9 µs/s 15.7 Timer tick_sched_timer 
258.7 µs/s 9.8 Interrupt [23] ehci_hcd:usb2 
168.6 µs/s 9.8 Process syndaemon -i 2.0 -K -R -t 
67.1 µs/s 8.8 Timer hrtimer_wakeup 
43.4 µs/s 8.8 Process [RTKTHREAD] 
12.9 ms/s 2.9 Process powertop 
361.2 µs/s 4.9 Process /usr/bin/X :0 -auth /var/run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch -background no 
0.0 µs/s 3.9 kWork BlinkWorkItemCallback 
2.0 ms/s 2.0 Process unity-2d-shell 
140.0 µs/s 2.0 Process /usr/lib/gnome-settings-daemon/gnome-settings-daemon 
370.0 µs/s 1.0 Process NetworkManager 
318.4 µs/s 1.0 Process dbus-daemon --system --fork --activation=upstart 
149.5 µs/s 1.0 Process /usr/lib/ubuntu-geoip/ubuntu-geoip-provider 
137.9 µs/s 1.0 Process /usr/lib/telepathy/mission-control-5 
123.2 µs/s 1.0 Process sshd: deckoff@pts/0 
81.2 µs/s 1.0 Process /usr/lib/accountsservice/accounts-daemon 
74.6 µs/s 1.0 Process /usr/lib/unity-lens-applications/unity-applications-daemon 
66.1 µs/s 1.0 Process /usr/lib/gvfs/gvfsd-trash --spawner :1.9 /org/gtk/gvfs/exec_spaw/0 
61.0 µs/s 1.0 Process zeitgeist-datahub 
58.2 µs/s 1.0 Process nautilus -n 
30.2 µs/s 1.0 Process /usr/lib/gvfs/gvfs-afc-volume-monitor 
12.5 µs/s 1.0 kWork flush_to_ldisc 
12.1 µs/s 1.0 Timer watchdog_timer_fn 
4.9 µs/s 1.0 Process [watchdog/1] 
4.5 µs/s 1.0 Process [watchdog/0] 
1.5 ms/s 0.0 Interrupt [16] nvidia 
0.9 ms/s 0.0 Interrupt [47] iwl3945 
382.9 µs/s 0.0 Process [migration/1]
269.4 µs/s 0.0 Interrupt [16] yenta 
263.9 µs/s 0.0 Process nm-applet 
249.1 µs/s 0.0 Interrupt [0] timer/0

空闲状态：

Package | CPU 0 POLL 0.0% | POLL 0.0% 0.0 ms C1 0.0% | C1 0.0% 0.0 ms  C2 0.0% | C2 0.0% 0.0 ms C3 99.3% | C3 99.2% 6.7 ms
| CPU 1 | POLL 0.0% 0.0 ms | C1 0.0% 0.0 ms | C2 0.0% 0.3 ms | C3 99.5% 6.6 ms

频率统计：

Package | CPU 0 Turbo Mode 0.3% | Turbo Mode 0.3% 
2.00 Ghz 0.0% | 2.00 Ghz 0.0% 
1.60 Ghz 0.0% | 1.60 Ghz 0.0% 1200 Mhz 0.0% | 1200 Mhz 0.0% 800 Mhz 0.0% 
| 800 Mhz 0.0% Idle 99.7% | Idle 99.7% 
| CPU 1 | Turbo Mode 0.0% | 2.00 Ghz 0.0% | 1.60 Ghz 0.0% | 1200 Mhz 
 0.0% | 800 Mhz 0.0% | Idle 100.0%

设备统计信息

Usage Device name

0.9% CPU use
100.0% Audio codec hwC0D0: SigmaTel 
513.4 pkts/s Network interface: wlan0 (iwl3945)
132.3 pkts/s Network interface: wlan1 (rtl8192cu)
100.0% PCI Device: Intel Corporation 82801H (ICH8 Family) PCI Express Port 5
100.0% PCI Device: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #1 
100.0% PCI Device: Intel Corporation PRO/Wireless 3945ABG [Golan] Network Connection 
100.0% PCI Device: Texas Instruments 5-in-1 Multimedia Card Reader (SD/MMC/MS/MS PRO/xD) 
100.0% PCI Device: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #3 
100.0% PCI Device: Intel Corporation 82801H (ICH8 Family) HD Audio Controller 
100.0% PCI Device: Intel Corporation 82801H (ICH8 Family) PCI Express Port 1
100.0% PCI Device: Intel Corporation 82801H (ICH8 Family) PCI Express Port 2
100.0% PCI Device: Intel Corporation 82801H (ICH8 Family) PCI Express Port 3
100.0% Radio device: iwl3945 
100.0% PCI Device: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #4 
100.0% PCI Device: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #2
100.0% PCI Device: Texas Instruments PCIxx12 Cardbus Controller 
100.0% PCI Device: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #1
100.0% PCI Device: Intel Corporation 82801HM/HEM (ICH8M/ICH8M-E) IDE Controller
100.0% PCI Device: Intel Corporation 82801HM/HEM (ICH8M/ICH8M-E) SATA Controller [AHCI mode] 
100.0% PCI Device: NVIDIA Corporation G86 [GeForce 8400M GT] 
100.0% USB device: UHCI Host Controller 
100.0% USB device: UHCI Host Controller 
100.0% PCI Device: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #5 
100.0% USB Device: usb-device-05ca-183b 
100.0% USB device: 802.11n WLAN Adapter (Realtek) 
100.0% USB device: EHCI Host Controller 
100.0% USB device: EHCI Host Controller 
100.0% USB device: UHCI Host Controller 
100.0% USB device: UHCI Host Controller 
100.0% PCI Device: Intel Corporation Mobile PM965/GM965/GL960 PCI Express Root Port 
100.0% PCI Device: Marvell Technology Group Ltd. 88E8036 PCI-E Fast Ethernet Controller 
100.0% USB device: UHCI Host Controller 
100.0% PCI Device: Texas Instruments PCIxx12 OHCI Compliant IEEE 1394 Host Controller 
100.0% PCI Device: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #2

答案1

我的 vaio 笔记本电脑也遇到了同样的问题，但我的 radeon HD 显卡通常比 Nvidia 的差。经过数周的搜索，我终于找到了解决方案：

  1. 打开终端（Ctrl++ Alt）T

  2. 输入以下命令打开/etc/rc.local文件：sudo gedit /etc/rc.local

  3. 将以下命令放入文件中，exit 0线前

    sudo bash -c "echo low > /sys/class/drm/card0/device/power_profile"

  4. 保存并关闭文件并重新启动计算机。

文件示例。

此命令将使能量配置文件处于low模式，因此它将减少消耗，这也将增加电池寿命。

注意：我使用开源驱动器，它是最好的，但我认为对于 Nvidia 来说你应该选择专有的。

答案2

不幸的是，nvidia 显卡往往会变得非常热（相信我，我经历过这种情况），并且在大多数具有良好处理器 + nvidia 显卡 + 非 ssd 驱动器的系统中，70C 实际上是一个合适的温度（除非你处于空调环境中）。

如果您知道怎么做，您可以使用压缩空气清洁通风口，但这只是一个临时解决方案，应该能将系统的空闲温度降至 40 度左右。很抱歉，没有更好的解决方案。

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