Eu enfrentei um problema. Meu caso de uso:
Eu tenho - PC com Ubuntu e Android,
Eu preciso - O tablet android como segundo monitor, mas conectado por wi-fi.
Eu estava tentando fazer o seguinte:
sudo apt-get install xserver-xorg-video-dummy x11vnc
depois disso eu mudo o xorg.conf:
Section "Device"
Identifier "Configured Video Device"
Driver "radeon"
EndSection
Section "Monitor"
Identifier "Configured Monitor"
EndSection
Section "Screen"
Identifier "Default Screen"
Monitor "Configured Monitor"
Device "Configured Video Device"
EndSection
#Dummy videocard
Section "Device"
Identifier "Videocard0"
Driver "dummy"
VideoRam 256000
EndSection
Section "Monitor"
Identifier "Monitor0"
HorizSync 10.0 - 300.0
VertRefresh 10.0 - 200.0
DisplaySize 300 200
#The following modeline is invalid (calculator overflowed):
#Modeline "32000x32000@0" -38917.43 32000 32032 -115848 -115816 32000 32775 32826 33601
Modeline "16384x8192@10" 2101.93 16384 16416 24400 24432 8192 8390 8403 8602
Modeline "8192x4096@10" 424.46 8192 8224 9832 9864 4096 4195 4202 4301
Modeline "5120x3200@10" 199.75 5120 5152 5904 5936 3200 3277 3283 3361
Modeline "3840x2880@10" 133.43 3840 3872 4376 4408 2880 2950 2955 3025
Modeline "3840x2560@10" 116.93 3840 3872 4312 4344 2560 2622 2627 2689
Modeline "3840x2048@10" 91.45 3840 3872 4216 4248 2048 2097 2101 2151
Modeline "2048x2048@10" 49.47 2048 2080 2264 2296 2048 2097 2101 2151
Modeline "2560x1600@10" 47.12 2560 2592 2768 2800 1600 1639 1642 1681
Modeline "1920x1200@10" 26.28 1920 1952 2048 2080 1200 1229 1231 1261
Modeline "1920x1080@10" 23.53 1920 1952 2040 2072 1080 1106 1108 1135
Modeline "1680x1050@10" 20.08 1680 1712 1784 1816 1050 1075 1077 1103
Modeline "1600x900@20" 33.92 1600 1632 1760 1792 900 921 924 946
Modeline "1440x900@20" 30.66 1440 1472 1584 1616 900 921 924 946
Modeline "1360x768@20" 24.49 1360 1392 1480 1512 768 786 789 807
#common resolutions for android devices (both orientations):
Modeline "800x1280@20" 25.89 800 832 928 960 1280 1310 1315 1345
Modeline "1280x800@20" 24.15 1280 1312 1400 1432 800 819 822 841
Modeline "720x1280@25" 30.22 720 752 864 896 1280 1309 1315 1345
Modeline "1280x720@25" 27.41 1280 1312 1416 1448 720 737 740 757
Modeline "768x1024@25" 24.93 768 800 888 920 1024 1047 1052 1076
Modeline "1024x768@25" 23.77 1024 1056 1144 1176 768 785 789 807
Modeline "600x1024@25" 19.90 600 632 704 736 1024 1047 1052 1076
Modeline "1024x600@25" 18.26 1024 1056 1120 1152 600 614 617 631
Modeline "536x960@25" 16.74 536 568 624 656 960 982 986 1009
Modeline "960x536@25" 15.23 960 992 1048 1080 536 548 551 563
Modeline "600x800@25" 15.17 600 632 688 720 800 818 822 841
Modeline "800x600@25" 14.50 800 832 880 912 600 614 617 631
Modeline "480x854@25" 13.34 480 512 560 592 854 873 877 897
Modeline "848x480@25" 12.09 848 880 920 952 480 491 493 505
Modeline "480x800@25" 12.43 480 512 552 584 800 818 822 841
Modeline "800x480@25" 11.46 800 832 872 904 480 491 493 505
Modeline "320x480@50" 10.73 320 352 392 424 480 490 494 505
Modeline "480x320@50" 9.79 480 512 544 576 320 327 330 337
Modeline "240x400@50" 6.96 240 272 296 328 400 408 412 421
Modeline "400x240@50" 6.17 400 432 448 480 240 245 247 253
Modeline "240x320@50" 5.47 240 272 288 320 320 327 330 337
Modeline "320x240@50" 5.10 320 352 368 400 240 245 247 253
#resolutions for android devices (both orientations)
#minus the status bar
#38px status bar (and width rounded up)
Modeline "800x1242@20" 25.03 800 832 920 952 1242 1271 1275 1305
Modeline "1280x762@20" 22.93 1280 1312 1392 1424 762 780 783 801
Modeline "720x1242@25" 29.20 720 752 856 888 1242 1271 1276 1305
Modeline "1280x682@25" 25.85 1280 1312 1408 1440 682 698 701 717
Modeline "768x986@25" 23.90 768 800 888 920 986 1009 1013 1036
Modeline "1024x730@25" 22.50 1024 1056 1136 1168 730 747 750 767
Modeline "600x986@25" 19.07 600 632 704 736 986 1009 1013 1036
Modeline "1024x562@25" 17.03 1024 1056 1120 1152 562 575 578 591
Modeline "536x922@25" 16.01 536 568 624 656 922 943 947 969
Modeline "960x498@25" 14.09 960 992 1040 1072 498 509 511 523
Modeline "600x762@25" 14.39 600 632 680 712 762 779 783 801
Modeline "800x562@25" 13.52 800 832 880 912 562 575 578 591
Modeline "480x810@25" 12.59 480 512 552 584 810 828 832 851
Modeline "848x442@25" 11.09 848 880 920 952 442 452 454 465
Modeline "480x762@25" 11.79 480 512 552 584 762 779 783 801
Modeline "800x442@25" 10.51 800 832 864 896 442 452 454 465
#32px status bar (no need for rounding):
Modeline "320x448@50" 9.93 320 352 384 416 448 457 461 471
Modeline "480x288@50" 8.75 480 512 544 576 288 294 297 303
#24px status bar:
Modeline "240x376@50" 6.49 240 272 296 328 376 384 387 395
Modeline "400x216@50" 5.50 400 432 448 480 216 220 222 227
Modeline "240x296@50" 5.02 240 272 288 320 296 302 305 311
Modeline "320x216@50" 4.55 320 352 368 400 216 220 222 227
EndSection
Section "Screen"
Identifier "Screen0"
Device "Videocard0"
Monitor "Monitor0"
DefaultDepth 24
SubSection "Display"
#tablet resolution
Virtual 1024 768
EndSubSection
EndSection
Section "ServerLayout"
Identifier "dummy_layout"
Screen 0 "Default Screen"
Screen 1 "screen0" rightof "Default Screen"
Option "Xinerama" "1"
EndSection
e reinicie o servidor xe o próximo comando shloud seja:
x11vnc -clip 1024x768 + 1280 + 0
mas depois de reiniciar o lightdm tudo esmagado, eu tenho uma tela preta (monitor principal) :) e depois disso eu preciso recuperar meu arquivo xorg.conf.
Alguém pode me explicar o que poderia estar errado aqui?