Linux connection projector

Linux-connected projector solution 1: Generally, the notebook's X can be displayed on the projector only when the current resolution of the notebook is the same as that of the projector. Run the following command: www.2cto.com $ xrandroid on my computer -...
Linux-connected projector solution 1: Generally, the notebook's X can be displayed on the projector only when the current resolution of the notebook is the same as that of the projector. Run the following command: www.2cto.com $ xrandroid on my computer: [09:03:20] zhangsen @ zhangsen-desktop: /opt/src/emacs $ xrandroid SZ: Pixels Physical Refresh * 0 1280x1024 (433mm x 346mm) * 50 54 1 1024x768 (346mm x 260mm) 51 60 61 2 800x600 (270x203) 52 65 66 67 68 3 640x480 (216x162) 53 73 74 75 4 1280x960 (433mm x 325mm) 55 5 1280x800 (433mm x 270mm) 56 6 1280x768 (433mm) X 260) 57 7 1152x864 (390x292) 58 8 1152x768 (390x260) 59 9 960x600 (325x203) 62 10 840x525 (284x177) 63 11 832x624 (281x211) 64 12 800x512 (270x173) 69 13 720x450 (243x152) 70 14 640x512 (216x173) 71 72 15 640x400 (216x135) 76 16 640x384 (216x130) 77 17 576x432 (195x146) 78 18 576x3 84 (195mm x 130mm) 79 19 512x384 (173mm x 130mm) 80 81 82 20 416x312 (140mm x 105mm) 83 21 400x300 (135mm x 101mm) 84 85 86 87 22 320x240 (108mm x 81mm) 88 89 90 Current rotation-normalCurrent reflection-noneRotations possible-normalReflections possible-none 0th plus the * number, indicating that this is the Current resolution used by the laptop. If the projector resolution is 1024x768, you need to change the laptop's resolution. In the above results, 1st X records correspond to records, so run this command to change the resolution: $ xrandroid-s 1. Wait for the projector to search. Connect to VGA and execute the command (VGA represents the display, LVDS represents the notebook LCD screen): $ xrandroid -- output VGA -- auto the current desktop will be copied to VGA, execute xrandroid and you will see a VGA-0 disconnected VGA-0: $ xrandroid -- output VGA-0 -- auto scale desktop according to the current configuration: $ xrandroid -- output VGA-0 -- auto -- left-of LVDS this is the xorg. conf. run xrandroid without parameters to list the current display devices and the modes supported by each device. Screen represents the total display area, VGA represents the display, LVDS represents the notebook LCD Screen. Screen 0: minimum 320x200, current 1280x768, maximum 1280x1280 VGA connected (normal left inverted right x axis y axis) 1280x1024 75.0 + 69.8 59.9 1024x768 75.1 70.1 60.0x800 600 72.2 75.0x60.3 640 480 75.0 72.8 65.4 60.0x720 400 70.1 LVDS connected 1024x768 + 0 (normal left inverted right x axis y axis) 246mm x 184mm 1024x768 x + 50.0 60.0 40.0x800 600x60.3 640 480 60.0 modified: gksudo gedit /Etc/X11/xorg. the conf file is modified as follows: Section "Screen" Identifier "Default Screen" Monitor "Configured Monitor" Device "Configured Video Device" SubSection "Display" Virtual 2304 1024 # Expand the dual-Screen at left and right sides, 2304 = 1280 + 1024,768, 8.04 = max () EndSubSection EndSection note: xorg. conf has been very streamlined. Subsection "Display" may need to be added by yourself. do not forget that the EndSubSection xrandroid command line can be easily switched to the dual screen. the common method is as follows. you can explore other methods by yourself: xrandroid -- output VGA -- same-as LVDS -- auto Turn on the external display (maximum resolution), the same content as the notebook LCD screen (clone) xrandroid -- output VGA -- same-as LVDS -- mode 1024x768 turn on the external monitor (resolution: 1024x768), the same content as the notebook LCD screen (clone) xrandroid -- output VGA -- right-of LVDS -- auto turn on the external monitor (maximum resolution ), set to right-side extended screen xrandroid -- output VGA -- off turn off external display xrandroid -- output VGA -- auto -- output LVDS -- off turn on external display and turn off notebook LCD screen (only external display is used) xrandroid -- output VGA -- off -- output LVDS -- auto turn off the external display and turn on the notebook LCD screen (only use the notebook LCD screen) Solution 2: Open xorg. conf Gksudo gedit/etc/X11/xorg. conf modify Section "Device" as follows: Section "Device" Identifier "Configured Video Device" Option "TwinView" "True" # enable dual-display and support Option "TwinViewOrientation" "Clone" # Copy mode, relative is the extended mode Option "UseEdidFreqs" "True" # enable Refresh frequency setting Option "Metamodes" "1024x768_60, 1024x768; 1024x768_60, 800x600" # refresh frequency mode, specify the resolution of the two devices. The first one before the comma is the display device on the local machine, and the second one after the comma is an external device. Separate multiple sets of devices with semicolons, you can set up two solutions or more. Save EndSection. Connect the projector and restart Xwindows (Ctrl + Alt + Backspace.