我按照此视频使用另一台笔记本电脑作为第二台显示器/屏幕。 https://www.youtube.com/watch?v=YOzRCBGDVaE
基本思路是：如果我有两台装有 Linux 的笔记本电脑：我的主笔记本电脑和第二台笔记本电脑。我在两台笔记本电脑上都安装了 Xdmx。然后我从第二台笔记本电脑 ssh 进入我的主笔记本电脑，然后在 ssh 会话下运行命令：
startx -- /usr/bin/Xdmx :1 +xinerama -display :0.0 -display localhost:10.0 -norender -noglxproxy
当我运行命令时
startx -- /usr/bin/Xdmx :1 +xinerama -display :0.0 -display localhost:10.0 -norender -noglxproxy
我遇到了一个致命错误，该怎么办？
I) dmx: Generation: 1
(II) dmx: DMX version: 1.2.20070424 (DMX Project)
(II) dmx: DMX Build OS: Linux 3.2.0-76-generic x86_64 (Ubuntu)
(II) dmx: DMX Build Compiler: gcc 4.8.2
(II) dmx: DMX Execution OS: Linux 3.13.0-48-generic #80-Ubuntu SMP Thu Mar 12 11:16:15 UTC 2015
(II) dmx: DMX Execution Host: mypad
(II) dmx: MAXSCREENS: 16
(II) dmx: Using configuration from command line
(II) dmx: Added :0.0 at 0 0
(II) dmx: Added localhost:11.0 right of :0.0
(II) dmx[o0/:0.0]: No Xdmx server running on backend
(II) dmx[o1/localhost:11.0]: Name of display: localhost:11.0
(II) dmx[o1/localhost:11.0]: Version number: 11.0
(II) dmx[o1/localhost:11.0]: Vendor string: Fedora Project
(II) dmx[o1/localhost:11.0]: Vendor release: 11303000
(II) dmx[o1/localhost:11.0]: Dimensions: 1366x768 pixels
(II) dmx[o1/localhost:11.0]: 7 depths on screen 0: 24,1,4,8,15,16,32
(II) dmx[o1/localhost:11.0]: Depth of root window: 24 planes (24)
(II) dmx[o1/localhost:11.0]: Number of colormaps: 1 min, 1 max
(II) dmx[o1/localhost:11.0]: Options: backing-store no, save-unders no
(II) dmx[o1/localhost:11.0]: Window Manager running: yes
(**) dmx[o1/localhost:11.0]: Window manager running -- colormaps not supported
(II) dmx[o1/localhost:11.0]: 1366x768+0+0 on 1366x768 at depth=24, bpp=32
(II) dmx[o1/localhost:11.0]: 0x21 TrueColor 24b 8b/rgb 256 0xff0000 0xff00 0x00ff *
(II) dmx[o1/localhost:11.0]: 0x22 DirectColor 24b 8b/rgb 256 0xff0000 0xff00 0x00ff
(II) dmx[o1/localhost:11.0]: 0x7a TrueColor 24b 8b/rgb 256 0xff0000 0xff00 0x00ff
(II) dmx[o1/localhost:11.0]: 0x7b TrueColor 24b 8b/rgb 256 0xff0000 0xff00 0x00ff
(II) dmx[o1/localhost:11.0]: 0x7c TrueColor 24b 8b/rgb 256 0xff0000 0xff00 0x00ff
(II) dmx[o1/localhost:11.0]: 0x7d TrueColor 24b 8b/rgb 256 0xff0000 0xff00 0x00ff
(II) dmx[o1/localhost:11.0]: 0x7e DirectColor 24b 8b/rgb 256 0xff0000 0xff00 0x00ff
(II) dmx[o1/localhost:11.0]: 0x7f DirectColor 24b 8b/rgb 256 0xff0000 0xff00 0x00ff
(II) dmx[o1/localhost:11.0]: 0x80 DirectColor 24b 8b/rgb 256 0xff0000 0xff00 0x00ff
(II) dmx[o1/localhost:11.0]: 0x81 DirectColor 24b 8b/rgb 256 0xff0000 0xff00 0x00ff
(II) dmx[o1/localhost:11.0]: 0x82 DirectColor 24b 8b/rgb 256 0xff0000 0xff00 0x00ff
(II) dmx[o1/localhost:11.0]: 0x61 TrueColor 32b 8b/rgb 256 0xff0000 0xff00 0x00ff
Initializing built-in extension Generic Event Extension
Initializing built-in extension SHAPE
Initializing built-in extension XInputExtension
Initializing built-in extension XTEST
Initializing built-in extension BIG-REQUESTS
Initializing built-in extension SYNC
Initializing built-in extension XKEYBOARD
Initializing built-in extension XC-MISC
Initializing built-in extension SECURITY
Initializing built-in extension XINERAMA
Initializing built-in extension XFIXES
Initializing built-in extension RENDER
Initializing built-in extension RECORD
Initializing built-in extension DPMS
Initializing built-in extension Present
Initializing built-in extension DRI3
Initializing built-in extension X-Resource
Initializing built-in extension SELinux
Initializing built-in extension DMX
Initializing built-in extension GLX
(II) dmx[o0/:0.0]: DPMS 1.1 (on, enabled, 0 0 0)
(II) dmx[o1/localhost:11.0]: DPMS 1.1 (on, enabled, 0 0 0)
(II) dmx[o0/:0.0]: (request) s=1366x768+0+0 r=1366x768+0+0 @0,0 (0) (be=1366x768 depth=24 bpp=32)
(II) dmx[o1/localhost:11.0]: (request) s=1366x768+0+0 r=1366x768+0+0 @0,0 (1) (be=1366x768 depth=24 bpp=32)
(II) dmx[o0/:0.0]: s=1366x768+0+0 r=1366x768+0+0 @0,0 (be=1366x768 depth=24 bpp=32)
(II) dmx[o1/localhost:11.0]: s=1366x768+0+0 r=1366x768+0+0 @1366,0 (be=1366x768 depth=24 bpp=32)
(II) dmx: Using 2732x768 as global bounding box
(II) dmx: XSync batching with 100 ms interval
[dix] Could not init font path element /usr/share/fonts/X11/cyrillic, removing from list!
[dix] Could not init font path element /usr/share/fonts/X11/100dpi/:unscaled, removing from list!
[dix] Could not init font path element /usr/share/fonts/X11/75dpi/:unscaled, removing from list!
[dix] Could not init font path element /usr/share/fonts/X11/100dpi, removing from list!
[dix] Could not init font path element /usr/share/fonts/X11/75dpi, removing from list!
(**) dmx: No default font path is set.
(!!) dmx: The DMX server failed to set the following font paths on screen #1:
(!!) dmx: /usr/share/fonts/X11/misc
(!!) dmx: /usr/share/fonts/X11/Type1
(!!) dmx: Please specify the font paths that are available on all back-end
(!!) dmx: servers with the "-fontpath" option, or use the "-ignorebadfontpaths"
(!!) dmx: to ignore bad defaults. For more information on these and other
(!!) dmx: font-path-related options, see the Xdmx man page.
(EE)
Fatal server error:
(EE) could not open default font 'fixed'(EE)
我尝试添加-ignorebadfontpaths，但是两个屏幕都变黑了。