尝试让 Nvidia SLI 工作但遇到一些困难。
(WW) VGA 仲裁器：无法打开内核仲裁器，不支持多卡
我注意到这可能是与之相关的第一个错误，尝试查找有关此错误的更多信息，但没有任何成功。最新升级版本 Ubuntu amd64，使用 Nvidia 开源驱动程序 Ver 455。Xorg 日志的片段，
(WW) VGA arbiter: cannot open kernel arbiter, no multi-card support
[ 7.399] (**) NVIDIA(0): Depth 24, (--) framebuffer bpp 32
[ 7.399] (==) NVIDIA(0): RGB weight 888
[ 7.399] (==) NVIDIA(0): Default visual is TrueColor
[ 7.399] (==) NVIDIA(0): Using gamma correction (1.0, 1.0, 1.0)
[ 7.400] (**) NVIDIA(0): Option "Stereo" "0"
[ 7.400] (**) NVIDIA(0): Option "nvidiaXineramaInfoOrder" "DFP-1"
[ 7.400] (**) NVIDIA(0): Option "SLI" "On"
[ 7.400] (**) NVIDIA(0): Option "MultiGPU" "Off"
[ 7.400] (**) NVIDIA(0): Option "BaseMosaic" "off"
[ 7.400] (**) NVIDIA(0): Stereo disabled by request
[ 7.400] (WW) NVIDIA(0): Invalid SLI option: 'On'; using single GPU rendering.
[ 7.400] (**) NVIDIA(0): NVIDIA Multi-GPU disabled.
[ 7.400] (**) NVIDIA(0): Option "MetaModes" "4096x2160 +0+0"
[ 7.400] (**) NVIDIA(0): Enabling 2D acceleration
[ 7.400] (II) Loading sub module "glxserver_nvidia"
[ 7.400] (II) LoadModule: "glxserver_nvidia"
有谁能帮我找出我的错误吗？
编辑 1 月 6 日上午 11 点 今天早上有一个更新准备好了，我安装时注意到其中大部分与 Nvidia 有关，但仍然是 455，我的驱动程序信息现在将其标记为 Proppriety，已测试。它在更新前被标记为开源。非常兴奋，更新后重新启动并运行我的基准测试......失望仍然只使用一张卡。我会补充说，一张卡的性能比单卡的 Windows 好得多。我真的很期待它起作用的那一天。我已经重新添加了日志和配置信息，因为原始粘贴中的格式已经乱套了，当我按下发布时，它在预览中看起来不是那样的????
编辑 1 月 11 日最新驱动程序 460 已更新，SLI 仍然无法正常工作。添加了 nividia-bug-report.log 作为以下链接。
xorg.log
[ 7.356] (--) Log file renamed from "/home/hiy_po/.local/share/xorg/Xorg.pid-1720.log" to "/home/hiy_po/.local/share/xorg/Xorg.0.log"
[ 7.357] X.Org X Server 1.20.8 X Protocol Version 11, Revision 0
[ 7.357] Build Operating System: Linux 4.15.0-124-generic x86_64 Ubuntu
[ 7.357] Current Operating System: Linux Steam 5.4.0-58-generic #64~18.04.1-Ubuntu SMP Wed Dec 9 17:11:11 UTC 2020 x86_64
[ 7.357] Kernel command line: BOOT_IMAGE=/boot/vmlinuz-5.4.0-58-generic root=UUID=7de58ac4-b64e-4c53-8827-12721a2aad2d ro nvidia-drm.modeset=1,quiet splash vt.handoff=1
[ 7.357] Build Date: 30 November 2020 05:59:23PM
[ 7.357] xorg-server-hwe-18.04 2:1.20.8-2ubuntu2.2~18.04.4 (For technical support please see http://www.ubuntu.com/support)
[ 7.357] Current version of pixman: 0.34.0
[ 7.357] Before reporting problems, check http://wiki.x.org
to make sure that you have the latest version.
[ 7.357] Markers: (--) probed, (**) from config file, (==) default setting,
(++) from command line, (!!) notice, (II) informational,
(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
[ 7.357] (==) Log file: "/home/hiy_po/.local/share/xorg/Xorg.0.log", Time: Thu Dec 24 00:21:14 2020
[ 7.357] (==) Using config file: "/etc/X11/xorg.conf"
[ 7.357] (==) Using system config directory "/usr/share/X11/xorg.conf.d"
[ 7.358] (==) ServerLayout "hiy_po SLI Configured0"
[ 7.358] (**) |-->Screen "Screen0" (0)
[ 7.358] (**) | |-->Monitor "Monitor0"
[ 7.358] (**) | |-->Device "Device0"
[ 7.358] (**) | |-->GPUDevice "Device1"
[ 7.358] (**) |-->Input Device "Keyboard0"
[ 7.358] (**) |-->Input Device "Mouse0"
[ 7.358] (**) Option "Xinerama" "0"
[ 7.358] (==) Automatically adding devices
[ 7.358] (==) Automatically enabling devices
[ 7.358] (==) Automatically adding GPU devices
[ 7.358] (==) Automatically binding GPU devices
[ 7.358] (==) Max clients allowed: 256, resource mask: 0x1fffff
[ 7.360] (WW) The directory "/usr/share/fonts/X11/cyrillic" does not exist.
[ 7.360] Entry deleted from font path.
[ 7.360] (WW) The directory "/usr/share/fonts/X11/100dpi/" does not exist.
[ 7.360] Entry deleted from font path.
[ 7.360] (WW) The directory "/usr/share/fonts/X11/75dpi/" does not exist.
[ 7.360] Entry deleted from font path.
[ 7.360] (WW) The directory "/usr/share/fonts/X11/100dpi" does not exist.
[ 7.360] Entry deleted from font path.
[ 7.360] (WW) The directory "/usr/share/fonts/X11/75dpi" does not exist.
[ 7.360] Entry deleted from font path.
[ 7.360] (WW) The directory "/usr/share/fonts/X11/cyrillic" does not exist.
[ 7.360] Entry deleted from font path.
[ 7.360] (WW) The directory "/usr/share/fonts/X11/100dpi/" does not exist.
[ 7.360] Entry deleted from font path.
[ 7.360] (WW) The directory "/usr/share/fonts/X11/75dpi/" does not exist.
[ 7.360] Entry deleted from font path.
[ 7.360] (WW) The directory "/usr/share/fonts/X11/100dpi" does not exist.
[ 7.360] Entry deleted from font path.
[ 7.360] (WW) The directory "/usr/share/fonts/X11/75dpi" does not exist.
[ 7.360] Entry deleted from font path.
[ 7.360] (**) FontPath set to:
/usr/share/fonts/X11/misc,
/usr/share/fonts/X11/Type1,
built-ins,
/usr/share/fonts/X11/misc,
/usr/share/fonts/X11/Type1,
built-ins
[ 7.360] (**) ModulePath set to "/usr/lib/xorg/modules"
[ 7.360] (WW) Hotplugging is on, devices using drivers 'kbd', 'mouse' or 'vmmouse' will be disabled.
[ 7.360] (WW) Disabling Keyboard0
[ 7.360] (WW) Disabling Mouse0
[ 7.360] (II) Loader magic: 0x55ec3fda5020
[ 7.360] (II) Module ABI versions:
[ 7.360] X.Org ANSI C Emulation: 0.4
[ 7.360] X.Org Video Driver: 24.1
[ 7.360] X.Org XInput driver : 24.1
[ 7.360] X.Org Server Extension : 10.0
[ 7.361] (++) using VT number 1
[ 7.361] (II) systemd-logind: took control of session /org/freedesktop/login1/session/_31
[ 7.362] (II) xfree86: Adding drm device (/dev/dri/card0)
[ 7.362] (II) systemd-logind: got fd for /dev/dri/card0 226:0 fd 12 paused 0
[ 7.363] (II) xfree86: Adding drm device (/dev/dri/card1)
[ 7.363] (II) systemd-logind: got fd for /dev/dri/card1 226:1 fd 13 paused 0
[ 7.365] (**) OutputClass "nvidia" ModulePath extended to "/usr/lib/x86_64-linux-gnu/nvidia/xorg,/usr/lib/xorg/modules"
[ 7.365] (**) OutputClass "nvidia" ModulePath extended to "/usr/lib/x86_64-linux-gnu/nvidia/xorg,/usr/lib/x86_64-linux-gnu/nvidia/xorg,/usr/lib/xorg/modules"
[ 7.367] (--) PCI:*(15@0:0:0) 10de:1b81:3842:6276 rev 161, Mem @ 0xf6000000/16777216, 0xe0000000/268435456, 0xf0000000/33554432, I/O @ 0x0000e000/128, BIOS @ 0x????????/131072
[ 7.367] (--) PCI: (16@0:0:0) 10de:1b81:3842:6276 rev 161, Mem @ 0xf4000000/16777216, 0xc0000000/268435456, 0xd0000000/33554432, I/O @ 0x0000d000/128, BIOS @ 0x????????/524288
[ 7.367] (II) "glx" will be loaded. This was enabled by default and also specified in the config file.
[ 7.367] (II) LoadModule: "dbe"
[ 7.367] (II) Module "dbe" already built-in
[ 7.367] (II) LoadModule: "extmod"
[ 7.367] (II) Module "extmod" already built-in
[ 7.367] (II) LoadModule: "glx"
[ 7.367] (II) Loading /usr/lib/xorg/modules/extensions/libglx.so
[ 7.370] (II) Module glx: vendor="X.Org Foundation"
[ 7.370] compiled for 1.20.8, module version = 1.0.0
[ 7.370] ABI class: X.Org Server Extension, version 10.0
[ 7.370] (II) LoadModule: "nvidia"
[ 7.371] (II) Loading /usr/lib/x86_64-linux-gnu/nvidia/xorg/nvidia_drv.so
[ 7.373] (II) Module nvidia: vendor="NVIDIA Corporation"
[ 7.373] compiled for 1.6.99.901, module version = 1.0.0
[ 7.373] Module class: X.Org Video Driver
[ 7.374] (II) NVIDIA dlloader X Driver 455.45.01 Thu Nov 5 23:01:05 UTC 2020
[ 7.374] (II) NVIDIA Unified Driver for all Supported NVIDIA GPUs
[ 7.374] xf86EnableIOPorts: failed to set IOPL for I/O (Operation not permitted)
[ 7.374] (II) systemd-logind: releasing fd for 226:0
[ 7.375] (II) Loading sub module "fb"
[ 7.375] (II) LoadModule: "fb"
[ 7.375] (II) Loading /usr/lib/xorg/modules/libfb.so
[ 7.375] (II) Module fb: vendor="X.Org Foundation"
[ 7.375] compiled for 1.20.8, module version = 1.0.0
[ 7.375] ABI class: X.Org ANSI C Emulation, version 0.4
[ 7.375] (II) Loading sub module "wfb"
[ 7.375] (II) LoadModule: "wfb"
[ 7.375] (II) Loading /usr/lib/xorg/modules/libwfb.so
[ 7.375] (II) Module wfb: vendor="X.Org Foundation"
[ 7.375] compiled for 1.20.8, module version = 1.0.0
[ 7.375] ABI class: X.Org ANSI C Emulation, version 0.4
[ 7.375] (II) Loading sub module "ramdac"
[ 7.375] (II) LoadModule: "ramdac"
[ 7.375] (II) Module "ramdac" already built-in
[ 7.377] (II) systemd-logind: releasing fd for 226:1
[ 7.399] (WW) VGA arbiter: cannot open kernel arbiter, no multi-card support
[ 7.399] (**) NVIDIA(0): Depth 24, (--) framebuffer bpp 32
[ 7.399] (==) NVIDIA(0): RGB weight 888
[ 7.399] (==) NVIDIA(0): Default visual is TrueColor
[ 7.399] (==) NVIDIA(0): Using gamma correction (1.0, 1.0, 1.0)
[ 7.400] (**) NVIDIA(0): Option "Stereo" "0"
[ 7.400] (**) NVIDIA(0): Option "nvidiaXineramaInfoOrder" "DFP-1"
[ 7.400] (**) NVIDIA(0): Option "SLI" "On"
[ 7.400] (**) NVIDIA(0): Option "MultiGPU" "Off"
[ 7.400] (**) NVIDIA(0): Option "BaseMosaic" "off"
[ 7.400] (**) NVIDIA(0): Stereo disabled by request
[ 7.400] (WW) NVIDIA(0): Invalid SLI option: 'On'; using single GPU rendering.
[ 7.400] (**) NVIDIA(0): NVIDIA Multi-GPU disabled.
[ 7.400] (**) NVIDIA(0): Option "MetaModes" "4096x2160 +0+0"
[ 7.400] (**) NVIDIA(0): Enabling 2D acceleration
[ 7.400] (II) Loading sub module "glxserver_nvidia"
[ 7.400] (II) LoadModule: "glxserver_nvidia"
[ 7.400] (II) Loading /usr/lib/x86_64-linux-gnu/nvidia/xorg/libglxserver_nvidia.so
[ 7.446] (II) Module glxserver_nvidia: vendor="NVIDIA Corporation"
[ 7.446] compiled for 1.6.99.901, module version = 1.0.0
[ 7.446] Module class: X.Org Server Extension
[ 7.446] (II) NVIDIA GLX Module 455.45.01 Thu Nov 5 22:58:18 UTC 2020
[ 7.446] (II) NVIDIA: The X server supports PRIME Render Offload.
[ 7.448] (--) NVIDIA(0): Valid display device(s) on GPU-0 at PCI:15:0:0
[ 7.448] (--) NVIDIA(0): DFP-0
[ 7.448] (--) NVIDIA(0): DFP-1 (boot)
[ 7.448] (--) NVIDIA(0): DFP-2
[ 7.448] (--) NVIDIA(0): DFP-3
[ 7.448] (--) NVIDIA(0): DFP-4
[ 7.448] (--) NVIDIA(0): DFP-5
[ 7.448] (--) NVIDIA(0): DFP-6
[ 7.448] (--) NVIDIA(0): DFP-7
[ 7.448] (II) NVIDIA(0): NVIDIA GPU GeForce GTX 1070 (GP104-A) at PCI:15:0:0 (GPU-0)
[ 7.448] (--) NVIDIA(0): Memory: 8388608 kBytes
[ 7.448] (--) NVIDIA(0): VideoBIOS: 86.04.50.00.72
[ 7.448] (II) NVIDIA(0): Detected PCI Express Link width: 16X
[ 7.448] (--) NVIDIA(GPU-0): DFP-0: disconnected
[ 7.448] (--) NVIDIA(GPU-0): DFP-0: Internal TMDS
[ 7.448] (--) NVIDIA(GPU-0): DFP-0: 330.0 MHz maximum pixel clock
[ 7.448] (--) NVIDIA(GPU-0):
[ 7.477] (--) NVIDIA(GPU-0): XXX Beyond TV (DFP-1): connected
[ 7.477] (--) NVIDIA(GPU-0): XXX Beyond TV (DFP-1): Internal TMDS
[ 7.477] (--) NVIDIA(GPU-0): XXX Beyond TV (DFP-1): 600.0 MHz maximum pixel clock
[ 7.477] (--) NVIDIA(GPU-0):
[ 7.477] (--) NVIDIA(GPU-0): DFP-2: disconnected
[ 7.477] (--) NVIDIA(GPU-0): DFP-2: Internal DisplayPort
[ 7.477] (--) NVIDIA(GPU-0): DFP-2: 1440.0 MHz maximum pixel clock
[ 7.477] (--) NVIDIA(GPU-0):
[ 7.477] (--) NVIDIA(GPU-0): DFP-3: disconnected
[ 7.477] (--) NVIDIA(GPU-0): DFP-3: Internal TMDS
[ 7.477] (--) NVIDIA(GPU-0): DFP-3: 165.0 MHz maximum pixel clock
[ 7.477] (--) NVIDIA(GPU-0):
[ 7.478] (--) NVIDIA(GPU-0): DFP-4: disconnected
[ 7.478] (--) NVIDIA(GPU-0): DFP-4: Internal DisplayPort
[ 7.478] (--) NVIDIA(GPU-0): DFP-4: 1440.0 MHz maximum pixel clock
[ 7.478] (--) NVIDIA(GPU-0):
[ 7.478] (--) NVIDIA(GPU-0): DFP-5: disconnected
[ 7.478] (--) NVIDIA(GPU-0): DFP-5: Internal TMDS
[ 7.478] (--) NVIDIA(GPU-0): DFP-5: 165.0 MHz maximum pixel clock
[ 7.478] (--) NVIDIA(GPU-0):
[ 7.478] (--) NVIDIA(GPU-0): DFP-6: disconnected
[ 7.478] (--) NVIDIA(GPU-0): DFP-6: Internal DisplayPort
[ 7.478] (--) NVIDIA(GPU-0): DFP-6: 1440.0 MHz maximum pixel clock
[ 7.478] (--) NVIDIA(GPU-0):
[ 7.478] (--) NVIDIA(GPU-0): DFP-7: disconnected
[ 7.478] (--) NVIDIA(GPU-0): DFP-7: Internal TMDS
[ 7.478] (--) NVIDIA(GPU-0): DFP-7: 165.0 MHz maximum pixel clock
[ 7.478] (--) NVIDIA(GPU-0):
[ 7.484] (II) NVIDIA(0): Validated MetaModes:
[ 7.484] (II) NVIDIA(0): "4096x2160+0+0"
[ 7.484] (II) NVIDIA(0): Virtual screen size determined to be 4096 x 2160
[ 7.492] (--) NVIDIA(0): DPI set to (85, 80); computed from "UseEdidDpi" X config
[ 7.492] (--) NVIDIA(0): option
[ 7.492] (**) NVIDIA(G0): Depth 24, (--) framebuffer bpp 32
[ 7.492] (==) NVIDIA(G0): RGB weight 888
[ 7.492] (==) NVIDIA(G0): Default visual is TrueColor
[ 7.492] (==) NVIDIA(G0): Using gamma correction (1.0, 1.0, 1.0)
[ 7.492] (**) NVIDIA(G0): Option "Stereo" "0"
[ 7.492] (**) NVIDIA(G0): Option "nvidiaXineramaInfoOrder" "DFP-1"
[ 7.492] (**) NVIDIA(G0): Option "SLI" "On"
[ 7.492] (**) NVIDIA(G0): Option "MultiGPU" "Off"
[ 7.492] (**) NVIDIA(G0): Option "BaseMosaic" "off"
[ 7.492] (**) NVIDIA(G0): Stereo disabled by request
[ 7.492] (WW) NVIDIA(G0): Invalid SLI option: 'On'; using single GPU rendering.
[ 7.492] (**) NVIDIA(G0): NVIDIA Multi-GPU disabled.
[ 7.492] (**) NVIDIA(G0): Enabling 2D acceleration
[ 7.492] (II) NVIDIA: The X server supports PRIME Render Offload.
[ 7.494] (--) NVIDIA(0): Valid display device(s) on GPU-1 at PCI:16:0:0
[ 7.494] (--) NVIDIA(0): DFP-0
[ 7.494] (--) NVIDIA(0): DFP-1
[ 7.494] (--) NVIDIA(0): DFP-2
[ 7.494] (--) NVIDIA(0): DFP-3
[ 7.494] (--) NVIDIA(0): DFP-4
[ 7.494] (--) NVIDIA(0): DFP-5
[ 7.494] (--) NVIDIA(0): DFP-6
[ 7.494] (--) NVIDIA(0): DFP-7
[ 7.495] (II) NVIDIA(G0): NVIDIA GPU GeForce GTX 1070 (GP104-A) at PCI:16:0:0 (GPU-1)
[ 7.495] (--) NVIDIA(G0): Memory: 8388608 kBytes
[ 7.495] (--) NVIDIA(G0): VideoBIOS: 86.04.50.00.72
[ 7.495] (II) NVIDIA(G0): Detected PCI Express Link width: 16X
[ 7.495] (--) NVIDIA(GPU-1): DFP-0: disconnected
[ 7.495] (--) NVIDIA(GPU-1): DFP-0: Internal TMDS
[ 7.495] (--) NVIDIA(GPU-1): DFP-0: 330.0 MHz maximum pixel clock
[ 7.495] (--) NVIDIA(GPU-1):
[ 7.495] (--) NVIDIA(GPU-1): DFP-1: disconnected
[ 7.495] (--) NVIDIA(GPU-1): DFP-1: Internal TMDS
[ 7.495] (--) NVIDIA(GPU-1): DFP-1: 165.0 MHz maximum pixel clock
[ 7.495] (--) NVIDIA(GPU-1):
[ 7.495] (--) NVIDIA(GPU-1): DFP-2: disconnected
[ 7.495] (--) NVIDIA(GPU-1): DFP-2: Internal DisplayPort
[ 7.495] (--) NVIDIA(GPU-1): DFP-2: 1440.0 MHz maximum pixel clock
[ 7.495] (--) NVIDIA(GPU-1):
[ 7.495] (--) NVIDIA(GPU-1): DFP-3: disconnected
[ 7.495] (--) NVIDIA(GPU-1): DFP-3: Internal TMDS
[ 7.495] (--) NVIDIA(GPU-1): DFP-3: 165.0 MHz maximum pixel clock
[ 7.495] (--) NVIDIA(GPU-1):
[ 7.495] (--) NVIDIA(GPU-1): DFP-4: disconnected
[ 7.495] (--) NVIDIA(GPU-1): DFP-4: Internal DisplayPort
[ 7.495] (--) NVIDIA(GPU-1): DFP-4: 1440.0 MHz maximum pixel clock
[ 7.495] (--) NVIDIA(GPU-1):
[ 7.495] (--) NVIDIA(GPU-1): DFP-5: disconnected
[ 7.495] (--) NVIDIA(GPU-1): DFP-5: Internal TMDS
[ 7.495] (--) NVIDIA(GPU-1): DFP-5: 165.0 MHz maximum pixel clock
[ 7.495] (--) NVIDIA(GPU-1):
[ 7.495] (--) NVIDIA(GPU-1): DFP-6: disconnected
[ 7.495] (--) NVIDIA(GPU-1): DFP-6: Internal DisplayPort
[ 7.495] (--) NVIDIA(GPU-1): DFP-6: 1440.0 MHz maximum pixel clock
[ 7.495] (--) NVIDIA(GPU-1):
[ 7.495] (--) NVIDIA(GPU-1): DFP-7: disconnected
[ 7.495] (--) NVIDIA(GPU-1): DFP-7: Internal TMDS
[ 7.495] (--) NVIDIA(GPU-1): DFP-7: 165.0 MHz maximum pixel clock
[ 7.495] (--) NVIDIA(GPU-1):
[ 7.495] (II) NVIDIA(G0): Validated MetaModes:
[ 7.495] (II) NVIDIA(G0): "NULL"
[ 7.495] (II) NVIDIA(G0): Virtual screen size determined to be 640 x 480
[ 7.495] (WW) NVIDIA(G0): Unable to get display device for DPI computation.
[ 7.495] (==) NVIDIA(G0): DPI set to (75, 75); computed from built-in default
[ 7.496] (WW) NVIDIA: Failed to bind sideband socket to
[ 7.496] (WW) NVIDIA: '/var/run/nvidia-xdriver-d8d7b980' Permission denied
[ 7.496] (II) NVIDIA: Using 24576.00 MB of virtual memory for indirect memory
[ 7.496] (II) NVIDIA: access.
[ 7.511] (II) NVIDIA(0): Setting mode "4096x2160+0+0"
[ 7.622] (==) NVIDIA(0): Disabling shared memory pixmaps
[ 7.622] (==) NVIDIA(0): Backing store enabled
[ 7.622] (==) NVIDIA(0): Silken mouse enabled
[ 7.623] (**) NVIDIA(0): DPMS enabled
[ 7.624] (II) Loading sub module "dri2"
[ 7.624] (II) LoadModule: "dri2"
[ 7.624] (II) Module "dri2" already built-in
[ 7.624] (II) NVIDIA(0): [DRI2] Setup complete
[ 7.624] (II) NVIDIA(0): [DRI2] VDPAU driver: nvidia
[ 7.639] (II) NVIDIA(G0): Setting mode "NULL"
[ 7.644] (==) NVIDIA(G0): Disabling shared memory pixmaps
[ 7.644] (==) NVIDIA(G0): Backing store enabled
[ 7.644] (==) NVIDIA(G0): Silken mouse enabled
[ 7.644] (**) NVIDIA(G0): DPMS enabled
[ 7.644] (WW) NVIDIA(G0): Option "metamodes" is not used
[ 7.644] (II) Loading sub module "dri2"
[ 7.644] (II) LoadModule: "dri2"
[ 7.644] (II) Module "dri2" already built-in
[ 7.644] (II) NVIDIA(G0): [DRI2] Setup complete
[ 7.644] (II) NVIDIA(G0): [DRI2] VDPAU driver: nvidia
[ 7.645] (II) Initializing extension Generic Event Extension
[ 7.645] (II) Initializing extension SHAPE
[ 7.645] (II) Initializing extension MIT-SHM
xorg配置文件
# nvidia-settings: X configuration file generated by nvidia-settings
# nvidia-settings: version 440.82
Section "ServerLayout"
Identifier "hiy_po SLI Configured0"
Screen 0 "Screen0" 0 0
InputDevice "Keyboard0" "CoreKeyboard"
InputDevice "Mouse0" "CorePointer"
Option "Xinerama" "0"
EndSection
Section "Files"
ModulePath "/usr/lib/xorg/modules"
FontPath "/usr/share/fonts/X11/misc"
FontPath "/usr/share/fonts/X11/cyrillic"
FontPath "/usr/share/fonts/X11/100dpi/:unscaled"
FontPath "/usr/share/fonts/X11/75dpi/:unscaled"
FontPath "/usr/share/fonts/X11/Type1"
FontPath "/usr/share/fonts/X11/100dpi"
FontPath "/usr/share/fonts/X11/75dpi"
FontPath "built-ins"
EndSection
Section "Module"
Load "dbe"
Load "extmod"
Load "type1"
Load "freetype"
Load "glx"
EndSection
Section "InputDevice"
# generated from default
Identifier "Mouse0"
Driver "mouse"
Option "Protocol" "auto"
Option "Device" "/dev/psaux"
Option "Emulate3Buttons" "no"
Option "ZAxisMapping" "4 5"
# Option "Device" "/dev/input/mice"
# Option "ZAxisMapping" "4 5 6 7"
EndSection
Section "InputDevice"
# generated from default
Identifier "Keyboard0"
Driver "kbd"
EndSection
Section "Monitor"
# HorizSync source: edid, VertRefresh source: edid
Identifier "Monitor0"
VendorName "Unknown"
ModelName "XXX Beyond TV"
HorizSync 30.0 - 80.0
VertRefresh 50.0 - 75.0
Option "DPMS"
EndSection
Section "Monitor"
Identifier "Monitor1"
VendorName "Monitor Vendor"
ModelName "Monitor Model"
EndSection
Section "Device"
# Identifier "Card0"
Identifier "Device0"
Driver "nvidia"
VendorName "NVIDIA Corporation"
BoardName "GeForce GTX 1070 FTW"
BusID "PCI:15:0:0"
EndSection
Section "Device"
# Identifier "Card1"
Identifier "Device1"
Driver "nvidia"
VendorName "NVIDIA Corporation"
BoardName "GeForce GTX 1070 FTW"
BusID "PCI:16:0:0"
EndSection
Section "Screen"
Identifier "Screen0"
Device "Device0"
Monitor "Monitor0"
DefaultDepth 24
Option "Stereo" "0"
Option "nvidiaXineramaInfoOrder" "DFP-1"
Option "metamodes" "4096x2160 +0+0"
Option "SLI" "On"
Option "MultiGPU" "Off"
Option "BaseMosaic" "off"
SubSection "Display"
Depth 24
EndSubSection
EndSection
答案1
从 Nvivdia 论坛得到答案。
generix 顶级贡献者 43 分钟 来自您的日志：
NVIDIA(0)：无效的 SLI 选项：“开”；使用单 GPU 渲染来自 nvidia 驱动程序更新日志：
2020-09-17 版本 455.23.04 * 删除了对 SLI 模式“SFR”、“AFR”和“AA”的支持。SLI Mosaic、Base Mosaic、GL_NV_gpu_multicast 和 GLX_NV_multigpu_context 仍然受支持。因此，除非应用程序使用上述 gl 方法，否则 Linux 不再有真正的 SLI 自动多 GPU 渲染。