现想请教为什么会出现此种状况，是否有方法解决或临时解决？
root@localhost:~# lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 12.04.4 LTS
Release: 12.04
Codename: precise
卡死时与正常时xorg日志不一样部分root@localhost:~# uname -a
Linux localhost 3.11.0-15-generic #25~precise1-Ubuntu SMP Thu Jan 30 17:39:31 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux
以上，如还需其他材料请说明我会尽快提供，在此深表感谢！[ 32.728] (II) intel(0): EDID vendor "LEN", prod id 26027
[ 32.729] (II) intel(0): Using hsync ranges from config file
[ 32.729] (II) intel(0): Using vrefresh ranges from config file
[ 32.729] (II) intel(0): Printing DDC gathered Modelines:
[ 32.729] (II) intel(0): Modeline "1920x1080"x0.0 148.50 1920 2008 2052 2200 1080 1084 1089 1125 +hsync +vsync (67.5 kHz eP)
[ 32.729] (II) intel(0): Modeline "800x600"x0.0 40.00 800 840 968 1056 600 601 605 628 +hsync +vsync (37.9 kHz e)
[ 32.729] (II) intel(0): Modeline "800x600"x0.0 36.00 800 824 896 1024 600 601 603 625 +hsync +vsync (35.2 kHz e)
[ 32.729] (II) intel(0): Modeline "640x480"x0.0 31.50 640 656 720 840 480 481 484 500 -hsync -vsync (37.5 kHz e)
[ 32.729] (II) intel(0): Modeline "640x480"x0.0 31.50 640 664 704 832 480 489 492 520 -hsync -vsync (37.9 kHz e)
[ 32.729] (II) intel(0): Modeline "640x480"x0.0 25.18 640 656 752 800 480 490 492 525 -hsync -vsync (31.5 kHz e)
[ 32.729] (II) intel(0): Modeline "720x400"x0.0 28.32 720 738 846 900 400 412 414 449 -hsync +vsync (31.5 kHz e)
[ 32.729] (II) intel(0): Modeline "1280x1024"x0.0 135.00 1280 1296 1440 1688 1024 1025 1028 1066 +hsync +vsync (80.0 kHz e)
[ 32.729] (II) intel(0): Modeline "1024x768"x0.0 78.75 1024 1040 1136 1312 768 769 772 800 +hsync +vsync (60.0 kHz e)
[ 32.729] (II) intel(0): Modeline "1024x768"x0.0 75.00 1024 1048 1184 1328 768 771 777 806 -hsync -vsync (56.5 kHz e)
[ 32.729] (II) intel(0): Modeline "1024x768"x0.0 65.00 1024 1048 1184 1344 768 771 777 806 -hsync -vsync (48.4 kHz e)
[ 32.729] (II) intel(0): Modeline "832x624"x0.0 57.28 832 864 928 1152 624 625 628 667 -hsync -vsync (49.7 kHz e)
[ 32.729] (II) intel(0): Modeline "800x600"x0.0 49.50 800 816 896 1056 600 601 604 625 +hsync +vsync (46.9 kHz e)
[ 32.729] (II) intel(0): Modeline "800x600"x0.0 50.00 800 856 976 1040 600 637 643 666 +hsync +vsync (48.1 kHz e)
[ 32.729] (II) intel(0): Modeline "1152x864"x0.0 108.00 1152 1216 1344 1600 864 865 868 900 +hsync +vsync (67.5 kHz e)
[ 32.729] (II) intel(0): Modeline "1280x1024"x0.0 108.00 1280 1328 1440 1688 1024 1025 1028 1066 +hsync +vsync (64.0 kHz e)
[ 32.729] (II) intel(0): Modeline "1280x1024"x70.0 128.94 1280 1368 1504 1728 1024 1025 1028 1066 -hsync +vsync (74.6 kHz e)
[ 32.729] (II) intel(0): Modeline "1440x900"x0.0 106.50 1440 1520 1672 1904 900 903 909 934 -hsync +vsync (55.9 kHz e)
[ 32.729] (II) intel(0): Modeline "1680x1050"x0.0 146.25 1680 1784 1960 2240 1050 1053 1059 1089 -hsync +vsync (65.3 kHz e)
[ 32.729] (II) intel(0): Modeline "1920x1080"x60.0 172.80 1920 2040 2248 2576 1080 1081 1084 1118 -hsync +vsync (67.1 kHz e)
[ 32.729] (II) intel(0): Modeline "1600x900"x60.0 119.00 1600 1696 1864 2128 900 901 904 932 -hsync +vsync (55.9 kHz e)
[ 32.729] (II) intel(0): Modeline "1600x900"x75.0 152.28 1600 1704 1880 2160 900 901 904 940 -hsync +vsync (70.5 kHz e)
[ 46574.288] (II) AIGLX: Suspending AIGLX clients for VT switch
[ 46634.429] (II) config/udev: removing device Lenovo Optical USB Mouse
[ 46634.429] (II) evdev: Lenovo Optical USB Mouse: Close
[ 46634.429] (II) UnloadModule: "evdev"
[ 46636.013] (II) config/udev: Adding input device Lenovo Optical USB Mouse (/dev/input/mouse0)
[ 46636.013] (II) No input driver specified, ignoring this device.
[ 46636.013] (II) This device may have been added with another device file.
[ 46636.014] (II) config/udev: Adding input device Lenovo Optical USB Mouse (/dev/input/event2)
[ 46636.014] (**) Lenovo Optical USB Mouse: Applying InputClass "evdev pointer catchall"
[ 46636.014] (II) Using input driver 'evdev' for 'Lenovo Optical USB Mouse'
[ 46636.014] (**) Lenovo Optical USB Mouse: always reports core events
[ 46636.014] (**) evdev: Lenovo Optical USB Mouse: Device: "/dev/input/event2"
[ 46636.014] (--) evdev: Lenovo Optical USB Mouse: Vendor 0x17ef Product 0x6019
[ 46636.014] (--) evdev: Lenovo Optical USB Mouse: Found 3 mouse buttons
[ 46636.014] (--) evdev: Lenovo Optical USB Mouse: Found scroll wheel(s)
[ 46636.014] (--) evdev: Lenovo Optical USB Mouse: Found relative axes
[ 46636.014] (--) evdev: Lenovo Optical USB Mouse: Found x and y relative axes
[ 46636.014] (II) evdev: Lenovo Optical USB Mouse: Configuring as mouse
[ 46636.014] (II) evdev: Lenovo Optical USB Mouse: Adding scrollwheel support
[ 46636.014] (**) evdev: Lenovo Optical USB Mouse: YAxisMapping: buttons 4 and 5
[ 46636.014] (**) evdev: Lenovo Optical USB Mouse: EmulateWheelButton: 4, EmulateWheelInertia: 10, EmulateWheelTimeout: 200
[ 46636.014] (**) Option "config_info" "udev:/sys/devices/pci0000:00/0000:00:1d.0/usb1/1-1/1-1.1/1-1.1.2/1-1.1.2:1.0/input/input17/event2"
[ 46636.014] (II) XINPUT: Adding extended input device "Lenovo Optical USB Mouse" (type: MOUSE, id 9)
[ 46636.014] (II) evdev: Lenovo Optical USB Mouse: initialized for relative axes.
[ 46636.015] (**) Lenovo Optical USB Mouse: (accel) keeping acceleration scheme 1
[ 46636.015] (**) Lenovo Optical USB Mouse: (accel) acceleration profile 0
[ 46636.015] (**) Lenovo Optical USB Mouse: (accel) acceleration factor: 2.000
[ 46636.015] (**) Lenovo Optical USB Mouse: (accel) acceleration threshold: 4