linux內核的耗電問題！（最後，我默默地把內核給降級了。）

这是我的电脑的信息：
[18:55:02@~]$ lspci
00:00.0 Host bridge: Intel Corporation Sandy Bridge DRAM Controller (rev 09)
00:01.0 PCI bridge: Intel Corporation Sandy Bridge PCI Express Root Port (rev 09)
00:16.0 Communication controller: Intel Corporation Cougar Point HECI Controller #1 (rev 04)
00:19.0 Ethernet controller: Intel Corporation 82579LM Gigabit Network Connection (rev 04)
00:1a.0 USB Controller: Intel Corporation Cougar Point USB Enhanced Host Controller #2 (rev 04)
00:1b.0 Audio device: Intel Corporation Cougar Point High Definition Audio Controller (rev 04)
00:1c.0 PCI bridge: Intel Corporation Cougar Point PCI Express Root Port 1 (rev b4)
00:1c.1 PCI bridge: Intel Corporation Cougar Point PCI Express Root Port 2 (rev b4)
00:1c.3 PCI bridge: Intel Corporation Cougar Point PCI Express Root Port 4 (rev b4)
00:1c.4 PCI bridge: Intel Corporation Cougar Point PCI Express Root Port 5 (rev b4)
00:1d.0 USB Controller: Intel Corporation Cougar Point USB Enhanced Host Controller #1 (rev 04)
00:1f.0 ISA bridge: Intel Corporation Cougar Point LPC Controller (rev 04)
00:1f.2 SATA controller: Intel Corporation Cougar Point 6 port SATA AHCI Controller (rev 04)
00:1f.3 SMBus: Intel Corporation Cougar Point SMBus Controller (rev 04)
01:00.0 VGA compatible controller: nVidia Corporation Device 1057 (rev a1)
01:00.1 Audio device: nVidia Corporation Device 0e08 (rev a1)
03:00.0 Network controller: Intel Corporation Centrino Wireless-N 1000
0d:00.0 System peripheral: Ricoh Co Ltd Device e823 (rev 05)

起初装好后不能上网，后来下载了e1000e-1.6.2.tar.gz驱动安装后方可上网。无法启用nvidia显卡，后来从nvidia主站下载了驱动，并且从Bios里面设置了启用nvidia显卡后才成功进入桌面。Touchpad我已经禁用了。目前的问题是声卡的驱动还没有安装好，Audio device: nVidia Corporation Device 0e08 (rev a1)和Audio device: Intel Corporation Cougar Point High Definition Audio Controller (rev 04)都没有啊。所以当下的声音效果不是太好！网上找了一大堆资料，但是却没有用得上的。

这是我的电脑的信息：
[18:55:02@~]$ lspci
00:00.0 Host bridge: Intel Corporation Sandy Bridge DRAM Controller (rev 09)
00:01.0 PCI bridge: Intel Corporation Sandy Bridge PCI Express Root Port (rev 09)
00:16.0 Communication controller: Intel Corporation Cougar Point HECI Controller #1 (rev 04)
00:19.0 Ethernet controller: Intel Corporation 82579LM Gigabit Network Connection (rev 04)
00:1a.0 USB Controller: Intel Corporation Cougar Point USB Enhanced Host Controller #2 (rev 04)
00:1b.0 Audio device: Intel Corporation Cougar Point High Definition Audio Controller (rev 04)
00:1c.0 PCI bridge: Intel Corporation Cougar Point PCI Express Root Port 1 (rev b4)
00:1c.1 PCI bridge: Intel Corporation Cougar Point PCI Express Root Port 2 (rev b4)
00:1c.3 PCI bridge: Intel Corporation Cougar Point PCI Express Root Port 4 (rev b4)
00:1c.4 PCI bridge: Intel Corporation Cougar Point PCI Express Root Port 5 (rev b4)
00:1d.0 USB Controller: Intel Corporation Cougar Point USB Enhanced Host Controller #1 (rev 04)
00:1f.0 ISA bridge: Intel Corporation Cougar Point LPC Controller (rev 04)
00:1f.2 SATA controller: Intel Corporation Cougar Point 6 port SATA AHCI Controller (rev 04)
00:1f.3 SMBus: Intel Corporation Cougar Point SMBus Controller (rev 04)
01:00.0 VGA compatible controller: nVidia Corporation Device 1057 (rev a1)
01:00.1 Audio device: nVidia Corporation Device 0e08 (rev a1)
03:00.0 Network controller: Intel Corporation Centrino Wireless-N 1000
0d:00.0 System peripheral: Ricoh Co Ltd Device e823 (rev 05)

起初装好后不能上网，后来下载了e1000e-1.6.2.tar.gz驱动安装后方可上网。无法启用nvidia显卡，后来从nvidia主站下载了驱动，并且从Bios里面设置了启用nvidia显卡后才成功进入桌面。Touchpad我已经禁用了。目前的问题是声卡的驱动还没有安装好，Audio device: nVidia Corporation Device 0e08 (rev a1)和Audio device: Intel Corporation Cougar Point High Definition Audio Controller (rev 04)都没有啊。所以当下的声音效果不是太好！网上找了一大堆资料，但是却没有用得上的。

这是我的电脑的信息：
[18:55:02@~]$ lspci
00:00.0 Host bridge: Intel Corporation Sandy Bridge DRAM Controller (rev 09)
00:01.0 PCI bridge: Intel Corporation Sandy Bridge PCI Express Root Port (rev 09)
00:16.0 Communication controller: Intel Corporation Cougar Point HECI Controller #1 (rev 04)
00:19.0 Ethernet controller: Intel Corporation 82579LM Gigabit Network Connection (rev 04)
00:1a.0 USB Controller: Intel Corporation Cougar Point USB Enhanced Host Controller #2 (rev 04)
00:1b.0 Audio device: Intel Corporation Cougar Point High Definition Audio Controller (rev 04)
00:1c.0 PCI bridge: Intel Corporation Cougar Point PCI Express Root Port 1 (rev b4)
00:1c.1 PCI bridge: Intel Corporation Cougar Point PCI Express Root Port 2 (rev b4)
00:1c.3 PCI bridge: Intel Corporation Cougar Point PCI Express Root Port 4 (rev b4)
00:1c.4 PCI bridge: Intel Corporation Cougar Point PCI Express Root Port 5 (rev b4)
00:1d.0 USB Controller: Intel Corporation Cougar Point USB Enhanced Host Controller #1 (rev 04)
00:1f.0 ISA bridge: Intel Corporation Cougar Point LPC Controller (rev 04)
00:1f.2 SATA controller: Intel Corporation Cougar Point 6 port SATA AHCI Controller (rev 04)
00:1f.3 SMBus: Intel Corporation Cougar Point SMBus Controller (rev 04)
01:00.0 VGA compatible controller: nVidia Corporation Device 1057 (rev a1)
01:00.1 Audio device: nVidia Corporation Device 0e08 (rev a1)
03:00.0 Network controller: Intel Corporation Centrino Wireless-N 1000
0d:00.0 System peripheral: Ricoh Co Ltd Device e823 (rev 05)

起初装好后不能上网，后来下载了e1000e-1.6.2.tar.gz驱动安装后方可上网。无法启用nvidia显卡，后来从nvidia主站下载了驱动，并且从Bios里面设置了启用nvidia显卡后才成功进入桌面。Touchpad我已经禁用了。目前的问题是声卡的驱动还没有安装好，Audio device: nVidia Corporation Device 0e08 (rev a1)和Audio device: Intel Corporation Cougar Point High Definition Audio Controller (rev 04)都没有啊。所以当下的声音效果不是太好！网上找了一大堆资料，但是却没有用得上的。