从 15.10 升级到 16.04 后，我的 Nvidia 专有驱动程序突然无法正常工作。每次启动以 Nvidia 作为主要后端驱动程序的笔记本电脑时，都会出现“系统正在低图形模式下运行”的消息。
我尝试过，花了半天时间在 Google 上搜索解决方案，但没有一个对我有用。我尝试过：
所有对其他人有用的上述解决方案对我来说根本不起作用，“系统在低图形模式下运行”的问题无论我为解决这个问题做了多少努力，它仍然不断出现。
以下是Xorg.0.log和消息出现“低图形模式”之后的日志。
Xorg.0.log
[ 59.735]
X.Org X Server 1.18.3
Release Date: 2016-04-04
[ 59.735] X Protocol Version 11, Revision 0
[ 59.735] Build Operating System: Linux 3.13.0-86-generic x86_64 Ubuntu
[ 59.735] Current Operating System: Linux shahril 4.4.0-28-generic #47-Ubuntu SMP Fri Jun 24 10:09:13 UTC 2016 x86_64
[ 59.735] Kernel command line: BOOT_IMAGE=/boot/vmlinuz-4.4.0-28-generic root=UUID=61384bb6-6235-4c1b-a19c-0549eb518562 ro quiet splash intel_iommu=on vfio_iommu_type1.allow_unsafe_interrupts=1 vt.handoff=7
[ 59.735] Build Date: 18 May 2016 01:07:07AM
[ 59.735] xorg-server 2:1.18.3-1ubuntu2.2 (For technical support please see http://www.ubuntu.com/support)
[ 59.735] Current version of pixman: 0.33.6
[ 59.735] Before reporting problems, check http://wiki.x.org
to make sure that you have the latest version.
[ 59.735] Markers: (--) probed, (**) from config file, (==) default setting,
(++) from command line, (!!) notice, (II) informational,
(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
[ 59.735] (==) Log file: "/var/log/Xorg.0.log", Time: Sat Jul 9 22:57:18 2016
[ 59.735] (==) Using config file: "/etc/X11/xorg.conf"
[ 59.735] (==) Using system config directory "/usr/share/X11/xorg.conf.d"
[ 59.736] (==) ServerLayout "layout"
[ 59.736] (**) |-->Screen "nvidia" (0)
[ 59.736] (**) | |-->Monitor "<default monitor>"
[ 59.736] (**) | |-->Device "nvidia"
[ 59.736] (**) | |-->GPUDevice "nvidia"
[ 59.736] (==) No monitor specified for screen "nvidia".
Using a default monitor configuration.
[ 59.736] (**) |-->Inactive Device "intel"
[ 59.736] (==) Automatically adding devices
[ 59.736] (==) Automatically enabling devices
[ 59.736] (==) Automatically adding GPU devices
[ 59.736] (==) Max clients allowed: 256, resource mask: 0x1fffff
[ 59.736] (WW) The directory "/usr/share/fonts/X11/cyrillic" does not exist.
[ 59.736] Entry deleted from font path.
[ 59.736] (WW) The directory "/usr/share/fonts/X11/100dpi/" does not exist.
[ 59.736] Entry deleted from font path.
[ 59.736] (WW) The directory "/usr/share/fonts/X11/75dpi/" does not exist.
[ 59.736] Entry deleted from font path.
[ 59.736] (WW) The directory "/usr/share/fonts/X11/100dpi" does not exist.
[ 59.736] Entry deleted from font path.
[ 59.736] (WW) The directory "/usr/share/fonts/X11/75dpi" does not exist.
[ 59.736] Entry deleted from font path.
[ 59.736] (==) FontPath set to:
/usr/share/fonts/X11/misc,
/usr/share/fonts/X11/Type1,
built-ins
[ 59.736] (==) ModulePath set to "/usr/lib/x86_64-linux-gnu/xorg/extra-modules,/usr/lib/xorg/extra-modules,/usr/lib/xorg/modules"
[ 59.736] (II) The server relies on udev to provide the list of input devices.
If no devices become available, reconfigure udev or disable AutoAddDevices.
[ 59.736] (II) Loader magic: 0x55b9d858eda0
[ 59.736] (II) Module ABI versions:
[ 59.736] X.Org ANSI C Emulation: 0.4
[ 59.736] X.Org Video Driver: 20.0
[ 59.736] X.Org XInput driver : 22.1
[ 59.736] X.Org Server Extension : 9.0
[ 59.737] (++) using VT number 7
[ 59.737] (II) systemd-logind: logind integration requires -keeptty and -keeptty was not provided, disabling logind integration
[ 59.737] (II) xfree86: Adding drm device (/dev/dri/card0)
[ 59.737] (II) xfree86: Adding drm device (/dev/dri/card1)
[ 59.738] (--) PCI:*(0:0:2:0) 8086:0166:1558:7102 rev 9, Mem @ 0xf7400000/4194304, 0xd0000000/268435456, I/O @ 0x0000f000/64
[ 59.738] (--) PCI: (0:1:0:0) 10de:13d7:1558:7481 rev 161, Mem @ 0xf6000000/16777216, 0xe0000000/268435456, 0xf0000000/33554432, I/O @ 0x0000e000/128, BIOS @ 0x????????/524288
[ 59.739] (WW) "glamoregl" will not be loaded unless you've specified it to be loaded elsewhere.
[ 59.739] (II) "glx" will be loaded by default.
[ 59.739] (II) LoadModule: "glx"
[ 59.739] (II) Loading /usr/lib/x86_64-linux-gnu/xorg/extra-modules/libglx.so
[ 59.741] (II) Module glx: vendor="NVIDIA Corporation"
[ 59.741] compiled for 4.0.2, module version = 1.0.0
[ 59.741] Module class: X.Org Server Extension
[ 59.741] (II) NVIDIA GLX Module 364.19 Tue Apr 19 14:10:52 PDT 2016
[ 59.741] (II) LoadModule: "nvidia"
[ 59.741] (II) Loading /usr/lib/x86_64-linux-gnu/xorg/extra-modules/nvidia_drv.so
[ 59.741] (II) Module nvidia: vendor="NVIDIA Corporation"
[ 59.741] compiled for 4.0.2, module version = 1.0.0
[ 59.742] Module class: X.Org Video Driver
[ 59.742] (II) LoadModule: "modesetting"
[ 59.742] (II) Loading /usr/lib/xorg/modules/drivers/modesetting_drv.so
[ 59.742] (II) Module modesetting: vendor="X.Org Foundation"
[ 59.742] compiled for 1.18.3, module version = 1.18.3
[ 59.742] Module class: X.Org Video Driver
[ 59.742] ABI class: X.Org Video Driver, version 20.0
[ 59.742] (II) NVIDIA dlloader X Driver 364.19 Tue Apr 19 13:48:55 PDT 2016
[ 59.742] (II) NVIDIA Unified Driver for all Supported NVIDIA GPUs
[ 59.742] (II) modesetting: Driver for Modesetting Kernel Drivers: kms
[ 59.742] (II) Loading sub module "fb"
[ 59.742] (II) LoadModule: "fb"
[ 59.742] (II) Loading /usr/lib/xorg/modules/libfb.so
[ 59.742] (II) Module fb: vendor="X.Org Foundation"
[ 59.742] compiled for 1.18.3, module version = 1.0.0
[ 59.742] ABI class: X.Org ANSI C Emulation, version 0.4
[ 59.742] (II) Loading sub module "wfb"
[ 59.742] (II) LoadModule: "wfb"
[ 59.742] (II) Loading /usr/lib/xorg/modules/libwfb.so
[ 59.742] (II) Module wfb: vendor="X.Org Foundation"
[ 59.742] compiled for 1.18.3, module version = 1.0.0
[ 59.742] ABI class: X.Org ANSI C Emulation, version 0.4
[ 59.742] (II) Loading sub module "ramdac"
[ 59.742] (II) LoadModule: "ramdac"
[ 59.742] (II) Module "ramdac" already built-in
[ 59.743] (II) modeset(G0): using drv /dev/dri/card1
[ 59.743] (II) NVIDIA(0): Creating default Display subsection in Screen section
"nvidia" for depth/fbbpp 24/32
[ 59.743] (==) NVIDIA(0): Depth 24, (==) framebuffer bpp 32
[ 59.743] (==) NVIDIA(0): RGB weight 888
[ 59.743] (==) NVIDIA(0): Default visual is TrueColor
[ 59.743] (==) NVIDIA(0): Using gamma correction (1.0, 1.0, 1.0)
[ 59.743] (**) NVIDIA(0): Option "ConstrainCursor" "off"
[ 59.743] (**) NVIDIA(0): Option "AllowEmptyInitialConfiguration" "on"
[ 59.743] (**) NVIDIA(0): Option "IgnoreDisplayDevices" "CRT"
[ 59.743] (**) NVIDIA(0): Enabling 2D acceleration
[ 59.938] (EE) NVIDIA(GPU-0): Failed to initialize the NVIDIA GPU at PCI:1:0:0. Please
[ 59.938] (EE) NVIDIA(GPU-0): check your system's kernel log for additional error
[ 59.938] (EE) NVIDIA(GPU-0): messages and refer to Chapter 8: Common Problems in the
[ 59.938] (EE) NVIDIA(GPU-0): README for additional information.
[ 59.938] (EE) NVIDIA(GPU-0): Failed to initialize the NVIDIA graphics device!
[ 59.938] (EE) NVIDIA(0): Failing initialization of X screen 0
[ 59.938] (II) UnloadModule: "nvidia"
[ 59.938] (II) UnloadSubModule: "wfb"
[ 59.938] (II) UnloadSubModule: "fb"
[ 59.938] (==) modeset(G0): Depth 24, (==) framebuffer bpp 32
[ 59.938] (**) modeset(G0): Option "AccelMethod" "None"
[ 59.938] (==) modeset(G0): RGB weight 888
[ 59.938] (==) modeset(G0): Default visual is TrueColor
[ 59.938] (**) modeset(G0): glamor disabled
[ 59.938] (II) modeset(G0): ShadowFB: preferred YES, enabled YES
[ 59.938] (II) modeset(G0): Output LVDS-1 has no monitor section
[ 59.939] (II) modeset(G0): Output VGA-1 has no monitor section
[ 60.064] (II) modeset(G0): Output HDMI-1 has no monitor section
[ 60.064] (II) modeset(G0): Output DP-1 has no monitor section
[ 60.192] (II) modeset(G0): Output HDMI-2 has no monitor section
[ 60.320] (II) modeset(G0): Output HDMI-3 has no monitor section
[ 60.320] (II) modeset(G0): Output DP-2 has no monitor section
[ 60.320] (II) modeset(G0): Output DP-3 has no monitor section
[ 60.320] (II) modeset(G0): EDID for output LVDS-1
[ 60.320] (II) modeset(G0): Manufacturer: CMO Model: 1720 Serial#: 0
[ 60.320] (II) modeset(G0): Year: 2011 Week: 2
[ 60.320] (II) modeset(G0): EDID Version: 1.3
[ 60.320] (II) modeset(G0): Digital Display Input
[ 60.320] (II) modeset(G0): Max Image Size [cm]: horiz.: 38 vert.: 21
[ 60.320] (II) modeset(G0): Gamma: 2.20
[ 60.320] (II) modeset(G0): No DPMS capabilities specified
[ 60.320] (II) modeset(G0): Supported color encodings: RGB 4:4:4 YCrCb 4:4:4
[ 60.320] (II) modeset(G0): First detailed timing is preferred mode
[ 60.320] (II) modeset(G0): redX: 0.640 redY: 0.333 greenX: 0.303 greenY: 0.613
[ 60.320] (II) modeset(G0): blueX: 0.154 blueY: 0.060 whiteX: 0.313 whiteY: 0.329
[ 60.320] (II) modeset(G0): Manufacturer's mask: 0
[ 60.320] (II) modeset(G0): Supported detailed timing:
[ 60.320] (II) modeset(G0): clock: 138.7 MHz Image Size: 382 x 215 mm
[ 60.320] (II) modeset(G0): h_active: 1920 h_sync: 1968 h_sync_end 2000 h_blank_end 2080 h_border: 0
[ 60.320] (II) modeset(G0): v_active: 1080 v_sync: 1083 v_sync_end 1088 v_blanking: 1111 v_border: 0
[ 60.320] (II) modeset(G0): N173HGE-L11
[ 60.320] (II) modeset(G0): CMO
[ 60.320] (II) modeset(G0): N173HGE-L11
[ 60.320] (II) modeset(G0): EDID (in hex):
[ 60.320] (II) modeset(G0): 00ffffffffffff000daf201700000000
[ 60.320] (II) modeset(G0): 02150103802615780ad895a3554d9d27
[ 60.320] (II) modeset(G0): 0f505400000001010101010101010101
[ 60.320] (II) modeset(G0): 0101010101012e3680a070381f403020
[ 60.320] (II) modeset(G0): 35007ed710000018000000fe004e3137
[ 60.321] (II) modeset(G0): 334847452d4c31310a20000000fe0043
[ 60.321] (II) modeset(G0): 4d4f0a202020202020202020000000fe
[ 60.321] (II) modeset(G0): 004e3137334847452d4c31310a20006e
[ 60.321] (II) modeset(G0): Printing probed modes for output LVDS-1
[ 60.321] (II) modeset(G0): Modeline "1920x1080"x60.0 138.70 1920 1968 2000 2080 1080 1083 1088 1111 -hsync -vsync (66.7 kHz eP)
[ 60.321] (II) modeset(G0): Modeline "1920x1080"x59.9 138.50 1920 1968 2000 2080 1080 1083 1088 1111 +hsync -vsync (66.6 kHz d)
[ 60.321] (II) modeset(G0): Modeline "1680x1050"x60.0 146.25 1680 1784 1960 2240 1050 1053 1059 1089 -hsync +vsync (65.3 kHz d)
[ 60.321] (II) modeset(G0): Modeline "1680x1050"x59.9 119.00 1680 1728 1760 1840 1050 1053 1059 1080 +hsync -vsync (64.7 kHz d)
[ 60.321] (II) modeset(G0): Modeline "1600x1024"x60.2 103.12 1600 1600 1656 1664 1024 1024 1029 1030 +hsync +vsync (62.0 kHz d)
[ 60.321] (II) modeset(G0): Modeline "1400x1050"x60.0 122.00 1400 1488 1640 1880 1050 1052 1064 1082 +hsync +vsync (64.9 kHz d)
[ 60.321] (II) modeset(G0): Modeline "1280x1024"x60.0 108.00 1280 1328 1440 1688 1024 1025 1028 1066 +hsync +vsync (64.0 kHz d)
[ 60.321] (II) modeset(G0): Modeline "1440x900"x59.9 106.50 1440 1520 1672 1904 900 903 909 934 -hsync +vsync (55.9 kHz d)
[ 60.321] (II) modeset(G0): Modeline "1280x960"x60.0 108.00 1280 1376 1488 1800 960 961 964 1000 +hsync +vsync (60.0 kHz d)
[ 60.321] (II) modeset(G0): Modeline "1360x768"x59.8 84.75 1360 1432 1568 1776 768 771 781 798 -hsync +vsync (47.7 kHz d)
[ 60.321] (II) modeset(G0): Modeline "1360x768"x60.0 72.00 1360 1408 1440 1520 768 771 781 790 +hsync -vsync (47.4 kHz d)
[ 60.321] (II) modeset(G0): Modeline "1152x864"x60.0 81.62 1152 1216 1336 1520 864 865 868 895 -hsync +vsync (53.7 kHz d)
[ 60.321] (II) modeset(G0): Modeline "1024x768"x120.1 133.47 1024 1100 1212 1400 768 768 770 794 doublescan -hsync +vsync (95.3 kHz d)
[ 60.321] (II) modeset(G0): Modeline "1024x768"x60.0 65.00 1024 1048 1184 1344 768 771 777 806 -hsync -vsync (48.4 kHz d)
[ 60.321] (II) modeset(G0): Modeline "960x720"x120.0 117.00 960 1024 1128 1300 720 720 722 750 doublescan -hsync +vsync (90.0 kHz d)
[ 60.321] (II) modeset(G0): Modeline "928x696"x120.1 109.15 928 976 1088 1264 696 696 698 719 doublescan -hsync +vsync (86.4 kHz d)
[ 60.321] (II) modeset(G0): Modeline "896x672"x120.0 102.40 896 960 1060 1224 672 672 674 697 doublescan -hsync +vsync (83.7 kHz d)
[ 60.321] (II) modeset(G0): Modeline "960x600"x120.0 77.00 960 984 1000 1040 600 601 604 617 doublescan +hsync -vsync (74.0 kHz d)
[ 60.321] (II) modeset(G0): Modeline "960x540"x120.0 69.25 960 984 1000 1040 540 541 544 555 doublescan +hsync -vsync (66.6 kHz d)
[ 60.321] (II) modeset(G0): Modeline "800x600"x120.0 81.00 800 832 928 1080 600 600 602 625 doublescan +hsync +vsync (75.0 kHz d)
[ 60.321] (II) modeset(G0): Modeline "800x600"x60.3 40.00 800 840 968 1056 600 601 605 628 +hsync +vsync (37.9 kHz d)
[ 60.321] (II) modeset(G0): Modeline "800x600"x56.2 36.00 800 824 896 1024 600 601 603 625 +hsync +vsync (35.2 kHz d)
[ 60.321] (II) modeset(G0): Modeline "840x525"x120.0 73.12 840 892 980 1120 525 526 529 544 doublescan -hsync +vsync (65.3 kHz d)
[ 60.321] (II) modeset(G0): Modeline "840x525"x119.8 59.50 840 864 880 920 525 526 529 540 doublescan +hsync -vsync (64.7 kHz d)
[ 60.321] (II) modeset(G0): Modeline "800x512"x120.3 51.56 800 800 828 832 512 512 514 515 doublescan +hsync +vsync (62.0 kHz d)
[ 60.321] (II) modeset(G0): Modeline "700x525"x120.0 61.00 700 744 820 940 525 526 532 541 doublescan +hsync +vsync (64.9 kHz d)
[ 60.321] (II) modeset(G0): Modeline "640x512"x120.0 54.00 640 664 720 844 512 512 514 533 doublescan +hsync +vsync (64.0 kHz d)
[ 60.321] (II) modeset(G0): Modeline "720x450"x119.8 53.25 720 760 836 952 450 451 454 467 doublescan -hsync +vsync (55.9 kHz d)
[ 60.321] (II) modeset(G0): Modeline "640x480"x120.0 54.00 640 688 744 900 480 480 482 500 doublescan +hsync +vsync (60.0 kHz d)
[ 60.321] (II) modeset(G0): Modeline "640x480"x59.9 25.18 640 656 752 800 480 490 492 525 -hsync -vsync (31.5 kHz d)
[ 60.321] (II) modeset(G0): Modeline "680x384"x119.6 42.38 680 716 784 888 384 385 390 399 doublescan -hsync +vsync (47.7 kHz d)
[ 60.321] (II) modeset(G0): Modeline "680x384"x119.9 36.00 680 704 720 760 384 385 390 395 doublescan +hsync -vsync (47.4 kHz d)
[ 60.321] (II) modeset(G0): Modeline "576x432"x120.1 40.81 576 608 668 760 432 432 434 447 doublescan -hsync +vsync (53.7 kHz d)
[ 60.321] (II) modeset(G0): Modeline "512x384"x120.0 32.50 512 524 592 672 384 385 388 403 doublescan -hsync -vsync (48.4 kHz d)
[ 60.321] (II) modeset(G0): Modeline "400x300"x120.6 20.00 400 420 484 528 300 300 302 314 doublescan +hsync +vsync (37.9 kHz d)
[ 60.321] (II) modeset(G0): Modeline "400x300"x112.7 18.00 400 412 448 512 300 300 301 312 doublescan +hsync +vsync (35.2 kHz d)
[ 60.321] (II) modeset(G0): Modeline "320x240"x120.1 12.59 320 328 376 400 240 245 246 262 doublescan -hsync -vsync (31.5 kHz d)
[ 60.322] (II) modeset(G0): EDID for output VGA-1
[ 60.448] (II) modeset(G0): EDID for output HDMI-1
[ 60.448] (II) modeset(G0): EDID for output DP-1
[ 60.580] (II) modeset(G0): EDID for output HDMI-2
[ 60.708] (II) modeset(G0): EDID for output HDMI-3
[ 60.708] (II) modeset(G0): EDID for output DP-2
[ 60.708] (II) modeset(G0): EDID for output DP-3
[ 60.708] (II) modeset(G0): Using default gamma of (1.0, 1.0, 1.0) unless otherwise stated.
[ 60.708] (==) modeset(G0): DPI set to (96, 96)
[ 60.708] (II) Loading sub module "fb"
[ 60.708] (II) LoadModule: "fb"
[ 60.708] (II) Loading /usr/lib/xorg/modules/libfb.so
[ 60.708] (II) Module fb: vendor="X.Org Foundation"
[ 60.708] compiled for 1.18.3, module version = 1.0.0
[ 60.708] ABI class: X.Org ANSI C Emulation, version 0.4
[ 60.708] (II) Loading sub module "shadow"
[ 60.708] (II) LoadModule: "shadow"
[ 60.708] (II) Loading /usr/lib/xorg/modules/libshadow.so
[ 60.709] (II) Module shadow: vendor="X.Org Foundation"
[ 60.709] compiled for 1.18.3, module version = 1.1.0
[ 60.709] ABI class: X.Org ANSI C Emulation, version 0.4
[ 60.709] (EE) Screen(s) found, but none have a usable configuration.
[ 60.709] (EE)
Fatal server error:
[ 60.709] (EE) no screens found(EE)
[ 60.709] (EE)
Please consult the The X.Org Foundation support
at http://wiki.x.org
for help.
[ 60.709] (EE) Please also check the log file at "/var/log/Xorg.0.log" for additional information.
[ 60.709] (EE)
[ 60.712] (EE) Server terminated with error (1). Closing log file.
dmesg（截断）（完整日志在这里：http://pastebin.com/RZABa15r）
[ 0.000000] microcode: CPU0 microcode updated early to revision 0x1c, date = 2015-02-26
[ 0.000000] Initializing cgroup subsys cpuset
[ 0.000000] Initializing cgroup subsys cpu
[ 0.000000] Initializing cgroup subsys cpuacct
[ 0.000000] Linux version 4.4.0-28-generic (buildd@lcy01-13) (gcc version 5.3.1 20160413 (Ubuntu 5.3.1-14ubuntu2.1) ) #47-Ubuntu SMP Fri Jun 24 10:09:13 UTC 2016 (Ubuntu 4.4.0-28.47-generic 4.4.13)
[ 0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-4.4.0-28-generic root=UUID=61384bb6-6235-4c1b-a19c-0549eb518562 ro quiet splash intel_iommu=on vfio_iommu_type1.allow_unsafe_interrupts=1 vt.handoff=7
[ 0.000000] KERNEL supported cpus:
[ 0.000000] Intel GenuineIntel
[ 0.000000] AMD AuthenticAMD
[ 0.000000] Centaur CentaurHauls
...
[ 4.235108] [drm] Initialized drm 1.1.0 20060810
[ 4.235328] r8169 Gigabit Ethernet driver 2.3LK-NAPI loaded
[ 4.235333] r8169 0000:03:00.2: can't disable ASPM; OS doesn't have ASPM control
[ 4.236092] r8169 0000:03:00.2 eth0: RTL8411 at 0xffffc90001bae000, 00:90:f5:de:76:a6, XID 08800800 IRQ 28
[ 4.236094] r8169 0000:03:00.2 eth0: jumbo features [frames: 9200 bytes, tx checksumming: ko]
[ 4.243933] nvidia: module license 'NVIDIA' taints kernel.
[ 4.243936] Disabling lock debugging due to kernel taint
[ 4.246824] nvidia: module verification failed: signature and/or required key missing - tainting kernel
[ 4.248080] ahci 0000:00:1f.2: AHCI 0001.0300 32 slots 6 ports 6 Gbps 0xe impl SATA mode
[ 4.248085] ahci 0000:00:1f.2: flags: 64bit ncq stag pm led clo pio slum part ems sxs apst
[ 4.249924] nvidia 0000:01:00.0: enabling device (0006 -> 0007)
[ 4.249978] vgaarb: device changed decodes: PCI:0000:01:00.0,olddecodes=io+mem,decodes=none:owns=none
[ 4.250032] nvidia-nvlink: Nvlink Core is being initialized, major device number 247
[ 4.250041] NVRM: loading NVIDIA UNIX x86_64 Kernel Module 364.19 Tue Apr 19 14:44:55 PDT 2016
[ 4.250719] nvidia-modeset: Loading NVIDIA Kernel Mode Setting Driver for UNIX platforms 364.19 Tue Apr 19 14:15:03 PDT 2016
[ 4.251167] [drm] [nvidia-drm] [GPU ID 0x00000100] Loading driver
...
[ 4.270300] [drm] Memory usable by graphics device = 2048M
[ 4.270303] checking generic (d0000000 7f0000) vs hw (d0000000 10000000)
[ 4.270304] fb: switching to inteldrmfb from VESA VGA
[ 4.270325] Console: switching to colour dummy device 80x25
[ 4.270378] [drm] Replacing VGA console driver
[ 4.296133] firewire_ohci 0000:05:00.0: added OHCI v1.10 device as card 0, 4 IR + 4 IT contexts, quirks 0x10
[ 4.332453] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[ 4.332456] [drm] Driver supports precise vblank timestamp query.
[ 4.353370] [Firmware Bug]: ACPI(PEGP) defines _DOD but not _DOS
[ 4.353422] ACPI: Video Device [PEGP] (multi-head: yes rom: yes post: no)
[ 4.353555] input: Video Bus as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/device:13/LNXVIDEO:00/input/input11
[ 4.353713] ACPI: Video Device [GFX0] (multi-head: yes rom: no post: no)
[ 4.364921] acpi device:45: registered as cooling_device8
[ 4.364975] input: Video Bus as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/LNXVIDEO:01/input/input12
[ 4.365093] [drm] Initialized i915 1.6.0 20151010 for 0000:00:02.0 on minor 1
...
[ 4.613355] usb-storage 3-2:1.1: USB Mass Storage device detected
[ 4.613433] scsi host6: usb-storage 3-2:1.1
[ 4.613481] usbcore: registered new interface driver usb-storage
[ 4.614464] usbcore: registered new interface driver uas
[ 4.669552] sda: sda1 sda2 sda3 sda4 sda5 sda6
[ 4.670172] sd 1:0:0:0: [sda] Attached SCSI disk
[ 4.756470] fbcon: inteldrmfb (fb0) is primary device
[ 4.756557] Console: switching to colour frame buffer device 240x67
[ 4.756602] i915 0000:00:02.0: fb0: inteldrmfb frame buffer device
[ 4.776005] usb 3-4: new full-speed USB device number 3 using xhci_hcd
[ 4.796127] firewire_core 0000:05:00.0: created device fw0: GUID edd4567887654321, S400
[ 4.948273] scsi 2:0:0:0: CD-ROM Slimtype DVD A DS8A8SH KX12 PQ: 0 ANSI: 5
[ 4.964813] hidraw: raw HID events driver (C) Jiri Kosina
[ 4.967994] usbcore: registered new interface driver usbhid
[ 4.967995] usbhid: USB HID core driver
[ 4.969066] input: Logitech USB Optical Mouse as /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2/1-1.2:1.0/0003:046D:C05A.0001/input/input13
[ 4.969137] hid-generic 0003:046D:C05A.0001: input,hidraw0: USB HID v1.11 Mouse [Logitech USB Optical Mouse] on usb-0000:00:1a.0-1.2/input0
[ 4.977232] sr 2:0:0:0: [sr0] scsi3-mmc drive: 24x/24x writer dvd-ram cd/rw xa/form2 cdda tray
[ 4.977238] cdrom: Uniform CD-ROM driver Revision: 3.20
[ 4.977457] sr 2:0:0:0: Attached scsi CD-ROM sr0
[ 4.977559] sr 2:0:0:0: Attached scsi generic sg1 type 5
[ 5.295972] ata4: SATA link down (SStatus 0 SControl 300)
[ 5.329256] psmouse serio2: synaptics: queried max coordinates: x [..5692], y [..4680]
[ 5.427096] [drm:intel_set_pch_fifo_underrun_reporting [i915]] *ERROR* uncleared pch fifo underrun on pch transcoder A
[ 5.427141] [drm:intel_pch_fifo_underrun_irq_handler [i915]] *ERROR* PCH transcoder A FIFO underrun
[ 5.474042] psmouse serio2: synaptics: Touchpad model: 1, fw: 7.2, id: 0x1c0b1, caps: 0xd04733/0xa40000/0xa0000/0x0, board id: 0, fw id: 582762
[ 5.511807] input: SynPS/2 Synaptics TouchPad as /devices/platform/i8042/serio2/input/input10
[ 5.612587] scsi 6:0:0:0: CD-ROM OnePlus Device Driver 0000 PQ: 0 ANSI: 2
[ 6.206729] random: nonblocking pool is initialized
[ 6.208200] EXT4-fs (sda5): mounted filesystem with ordered data mode. Opts: (null)
...
[ 17.888461] lpc_ich: Resource conflict(s) found affecting gpio_ich
[ 19.081779] AVX version of gcm_enc/dec engaged.
[ 19.081781] AES CTR mode by8 optimization enabled
[ 20.775548] ath: phy0: ASPM enabled: 0x43
[ 20.775551] ath: EEPROM regdomain: 0x6c
[ 20.775552] ath: EEPROM indicates we should expect a direct regpair map
[ 20.775553] ath: Country alpha2 being used: 00
[ 20.775554] ath: Regpair used: 0x6c
[ 20.969350] ieee80211 phy0: Selected rate control algorithm 'minstrel_ht'
[ 20.969580] ieee80211 phy0: Atheros AR9462 Rev:2 mem=0xffffc90001f00000, irq=18
[ 21.004796] ath9k 0000:04:00.0 wlp4s0: renamed from wlan0
[ 21.099208] intel_rapl: Found RAPL domain package
[ 21.099211] intel_rapl: Found RAPL domain core
[ 21.099215] intel_rapl: Found RAPL domain uncore
[ 21.122900] nvidia-uvm: Loaded the UVM driver in lite mode, major device number 243
...
任何帮助深表感谢。
答案1
我做到了！！这是驱动程序本身的问题！
问题：我的显卡（NVIDIA GTX980M）无法很好地与新的专有 NVIDIA Linux 驱动程序配合使用。 解决方案：使用支持我的显卡的旧驱动程序。
基本上，在网上潜水一段时间后，有人说也许我可以尝试使用稳定的nvidia-352而不是新的驱动程序。
然而，apt-cache search nvidia-352，我发现NVIDIA-352只是过渡驱动因素nvidia-361图形驱动程序。
但是，根据我之前的测试，nvidia-361 到最新的（撰写本文时为 nvidia-370）是我的问题的根源。
所以我需要下载准确的NVIDIA-352而不是过渡NVIDIA-361。
如果您遇到与我相同的问题，那么下面是我解决问题的步骤。
脚步 ：
卸载所有当前有问题的 NVIDIA 驱动程序。
sudo apt-get purge nvidia-* libcuda-*。
创建临时文件夹来存储
nvidia-352所需文件cd ~/Desktop mkdir nvidia-352 cd nvidia-352。
下载图形驱动程序所需的文件
nvidia-352。wget https://launchpad.net/ubuntu/+archive/primary/+files/libcuda1-352_352.63-0ubuntu3_amd64.deb wget https://launchpad.net/ubuntu/+archive/primary/+files/nvidia-libopencl1-352_352.63-0ubuntu3_amd64.deb wget https://launchpad.net/ubuntu/+archive/primary/+files/nvidia-opencl-icd-352_352.63-0ubuntu3_amd64.deb wget https://launchpad.net/ubuntu/+archive/primary/+files/nvidia-352_352.63-0ubuntu3_amd64.deb编辑1：
如果你下载时遇到问题
nvidia-352_352.63-0ubuntu3_amd64.deb从上面的链接（我想到的），您也可以从不同的来源下载它。以下是该文件的备用链接：
http://mirrors.mit.edu/ubuntu/pool/restricted/n/nvidia-graphics-drivers-352/nvidia-352_352.63-0ubuntu0.15.10.1_amd64.deb编辑2：
上面的链接适用于 64 位 NVIDIA 驱动程序，对于那些正在寻找 32 位驱动程序的人，请查看以下链接：
https://launchpad.net/ubuntu/+source/nvidia-graphics-drivers-352步骤相同，只是您需要下载支持 32 位设置的不同文件。
。
安装所有 debs 文件。
sudo dpkg -i *.deb。
重启
。
瞧！如果您启动桌面时没有发生任何崩溃，那么您就成功解决了这个图形问题！
享受吧！:D
答案2
Ubuntu 使用apt-get安装软件包及其依赖项。apt-get使用dpkg但也会解决依赖关系，这就是为什么不建议您使用 安装软件包的原因dpkg。
此外，你应该查阅 nvidia 网站，了解你应该使用哪个版本的驱动程序，以及您不需要下载驱动程序正如您将要使用的apt-get。
在开始之前，最好进行全面升级。我建议进行 dist-upgrade。单击此处了解更多信息。
以下是针对 的建议修复nvidia-352：
sudo apt-get purge nvidia-* libcuda-*
sudo apt-get update
sudo apt-get install nvidia-352 libcuda1-352 nvidia-libopencl1-352 nvidia-opencl-icd-352
重新启动以使更改生效。
此外，以后您可以使用以下命令搜索可用的软件包。在此示例中，我们将搜索单词“nvidia”：
sudo apt-get update
apt-cache search nvidia
答案3
这个问题可以通过以下方法解决
sudo apt purge nvidia-*
之后重新启动您的电脑，问题就解决了。