我刚买了一台新的 LG 显示器，用作运行 Ubuntu 的 HP 笔记本电脑（英特尔集成显卡）的第二个显示器。在我的Settings > DisplayGUI 中，我可以看到我的显示器被检测到，但在显示器本身上却显示check your HDMI connection。
我搜索了很多，发现 LG 有双显示器软件，但它不适用于 Ubuntu。我尝试使用xrandr工具，但没有帮助。
到目前为止，我的另一台笔记本电脑上有 ubuntu 和 VGA 端口，它可以在那里工作，所以问题出在我的HDMI驱动程序上。我已经为此寻找过英特尔驱动程序，但不知道它是否能解决我的问题。
xrandr --verbose
eDP1 connected primary 1280x720+0+0 (0xe9) normal (normal left inverted right x axis y axis) 293mm x 165mm
Identifier: 0x43
Timestamp: 3934484
Subpixel: unknown
Gamma: 1.0:1.0:1.0
Brightness: 1.0
Clones:
CRTC: 0
CRTCs: 1 0 2
Transform: 1.000000 0.000000 0.000000
0.000000 1.000000 0.000000
0.000000 0.000000 1.000000
filter:
EDID:
00ffffffffffff0030e4540300000000
00160104901d11780afc359658578e29
1f505400000001010101010101010101
0101010101013e1c56a0500016302428
350025a510000019d41256a050001630
2428350025a510000019000000000000
00000000000000000000000000000002
000c3dff0a3c64121222640000000062
BACKLIGHT: 707
range: (0, 937)
Backlight: 707
range: (0, 937)
scaling mode: Full aspect
supported: None, Full, Center, Full aspect
Broadcast RGB: Automatic
supported: Automatic, Full, Limited 16:235
audio: auto
supported: force-dvi, off, auto, on
1366x768 (0x47) 72.300MHz -HSync -VSync +preferred
h: width 1366 start 1402 end 1442 total 1526 skew 0 clock 47.38KHz
v: height 768 start 771 end 776 total 790 clock 59.97Hz
1366x768 (0xf6) 48.200MHz -HSync -VSync
h: width 1366 start 1402 end 1442 total 1526 skew 0 clock 31.59KHz
v: height 768 start 771 end 776 total 790 clock 39.98Hz
1360x768 (0xe7) 84.750MHz -HSync +VSync
h: width 1360 start 1432 end 1568 total 1776 skew 0 clock 47.72KHz
v: height 768 start 771 end 781 total 798 clock 59.80Hz
1360x768 (0xe8) 72.000MHz +HSync -VSync
h: width 1360 start 1408 end 1440 total 1520 skew 0 clock 47.37KHz
v: height 768 start 771 end 781 total 790 clock 59.96Hz
1280x720 (0xe9) 74.480MHz -HSync +VSync *current
h: width 1280 start 1336 end 1472 total 1664 skew 0 clock 44.76KHz
v: height 720 start 721 end 724 total 746 clock 60.00Hz
1024x768 (0xea) 65.000MHz -HSync -VSync
h: width 1024 start 1048 end 1184 total 1344 skew 0 clock 48.36KHz
v: height 768 start 771 end 777 total 806 clock 60.00Hz
1024x576 (0xeb) 46.995MHz -HSync +VSync
h: width 1024 start 1064 end 1168 total 1312 skew 0 clock 35.82KHz
v: height 576 start 577 end 580 total 597 clock 60.00Hz
960x540 (0xec) 40.784MHz -HSync +VSync
h: width 960 start 992 end 1088 total 1216 skew 0 clock 33.54KHz
v: height 540 start 541 end 544 total 559 clock 60.00Hz
800x600 (0xed) 40.000MHz +HSync +VSync
h: width 800 start 840 end 968 total 1056 skew 0 clock 37.88KHz
v: height 600 start 601 end 605 total 628 clock 60.32Hz
800x600 (0xee) 36.000MHz +HSync +VSync
h: width 800 start 824 end 896 total 1024 skew 0 clock 35.16KHz
v: height 600 start 601 end 603 total 625 clock 56.25Hz
864x486 (0xef) 32.901MHz -HSync +VSync
h: width 864 start 888 end 976 total 1088 skew 0 clock 30.24KHz
v: height 486 start 487 end 490 total 504 clock 60.00Hz
640x480 (0xf0) 25.175MHz -HSync -VSync
h: width 640 start 656 end 752 total 800 skew 0 clock 31.47KHz
v: height 480 start 490 end 492 total 525 clock 59.94Hz
720x405 (0xf1) 22.176MHz -HSync +VSync
h: width 720 start 728 end 800 total 880 skew 0 clock 25.20KHz
v: height 405 start 406 end 409 total 420 clock 60.00Hz
680x384 (0xf2) 19.677MHz -HSync +VSync
h: width 680 start 688 end 752 total 824 skew 0 clock 23.88KHz
v: height 384 start 385 end 388 total 398 clock 60.00Hz
640x360 (0xf3) 17.187MHz -HSync +VSync
h: width 640 start 640 end 704 total 768 skew 0 clock 22.38KHz
v: height 360 start 361 end 364 total 373 clock 60.00Hz
HDMI1 connected 1280x720+1280+0 (0xff) normal (normal left inverted right x axis y axis) 440mm x 250mm
Identifier: 0x44
Timestamp: 3934484
Subpixel: unknown
Gamma: 1.0:1.0:1.0
Brightness: 1.0
Clones:
CRTC: 1
CRTCs: 1 0 2
Transform: 1.000000 0.000000 0.000000
0.000000 1.000000 0.000000
0.000000 0.000000 1.000000
filter:
EDID:
00ffffffffffff001e6dc75a85890200
08190103802c1978ea3135a5554ea126
0c5054a76a80714f81c0a9c0810095c0
010101010101302a40c8608464301850
1300b8fa1000001e000000fd00384b1e
530f000a202020202020000000fc004c
4720484420504c55530a2020000000ff
000a2020202020202020202020200190
02031df14a8404030112121313131323
0907078301000065030c001000000000
00000000000000000000000000000000
00000000000000000000000000000000
00011d007251d01e206e285500b8fa10
00001e8c0ad08a20e02d10103e9600b8
fa100000180000000000000000000000
000000000000000000000000000000c0
aspect ratio: Automatic
supported: Automatic, 4:3, 16:9
Broadcast RGB: Automatic
supported: Automatic, Full, Limited 16:235
audio: auto
supported: force-dvi, off, auto, on
1600x900 (0xfb) 108.000MHz +HSync +VSync +preferred
h: width 1600 start 1624 end 1704 total 1800 skew 0 clock 60.00KHz
v: height 900 start 901 end 904 total 1000 clock 60.00Hz
1440x810 (0xfc) 95.004MHz -HSync +VSync
h: width 1440 start 1512 end 1664 total 1888 skew 0 clock 50.32KHz
v: height 810 start 811 end 814 total 839 clock 59.98Hz
1280x800 (0xfd) 71.000MHz +HSync -VSync
h: width 1280 start 1328 end 1360 total 1440 skew 0 clock 49.31KHz
v: height 800 start 803 end 809 total 823 clock 59.91Hz
1152x864 (0xfe) 108.000MHz +HSync +VSync
h: width 1152 start 1216 end 1344 total 1600 skew 0 clock 67.50KHz
v: height 864 start 865 end 868 total 900 clock 75.00Hz
1280x720 (0xff) 74.250MHz +HSync +VSync *current
h: width 1280 start 1390 end 1430 total 1650 skew 0 clock 45.00KHz
v: height 720 start 725 end 730 total 750 clock 60.00Hz
1280x720 (0x100) 74.250MHz +HSync +VSync
h: width 1280 start 1720 end 1760 total 1980 skew 0 clock 37.50KHz
v: height 720 start 725 end 730 total 750 clock 50.00Hz
1280x720 (0x101) 74.176MHz +HSync +VSync
h: width 1280 start 1390 end 1430 total 1650 skew 0 clock 44.96KHz
v: height 720 start 725 end 730 total 750 clock 59.94Hz
1024x768 (0x102) 78.800MHz +HSync +VSync
h: width 1024 start 1040 end 1136 total 1312 skew 0 clock 60.06KHz
v: height 768 start 769 end 772 total 800 clock 75.08Hz
1024x768 (0xea) 65.000MHz -HSync -VSync
h: width 1024 start 1048 end 1184 total 1344 skew 0 clock 48.36KHz
v: height 768 start 771 end 777 total 806 clock 60.00Hz
832x624 (0x103) 57.284MHz -HSync -VSync
h: width 832 start 864 end 928 total 1152 skew 0 clock 49.73KHz
v: height 624 start 625 end 628 total 667 clock 74.55Hz
800x600 (0x104) 49.500MHz +HSync +VSync
h: width 800 start 816 end 896 total 1056 skew 0 clock 46.88KHz
v: height 600 start 601 end 604 total 625 clock 75.00Hz
800x600 (0xed) 40.000MHz +HSync +VSync
h: width 800 start 840 end 968 total 1056 skew 0 clock 37.88KHz
v: height 600 start 601 end 605 total 628 clock 60.32Hz
800x600 (0xee) 36.000MHz +HSync +VSync
h: width 800 start 824 end 896 total 1024 skew 0 clock 35.16KHz
v: height 600 start 601 end 603 total 625 clock 56.25Hz
720x576 (0x105) 27.000MHz -HSync -VSync
h: width 720 start 732 end 796 total 864 skew 0 clock 31.25KHz
v: height 576 start 581 end 586 total 625 clock 50.00Hz
720x480 (0x106) 27.027MHz -HSync -VSync
h: width 720 start 736 end 798 total 858 skew 0 clock 31.50KHz
v: height 480 start 489 end 495 total 525 clock 60.00Hz
720x480 (0x107) 27.000MHz -HSync -VSync
h: width 720 start 736 end 798 total 858 skew 0 clock 31.47KHz
v: height 480 start 489 end 495 total 525 clock 59.94Hz
640x480 (0x108) 31.500MHz -HSync -VSync
h: width 640 start 656 end 720 total 840 skew 0 clock 37.50KHz
v: height 480 start 481 end 484 total 500 clock 75.00Hz
640x480 (0x109) 25.200MHz -HSync -VSync
h: width 640 start 656 end 752 total 800 skew 0 clock 31.50KHz
v: height 480 start 490 end 492 total 525 clock 60.00Hz
640x480 (0xf0) 25.175MHz -HSync -VSync
h: width 640 start 656 end 752 total 800 skew 0 clock 31.47KHz
v: height 480 start 490 end 492 total 525 clock 59.94Hz
720x400 (0x10a) 28.320MHz -HSync +VSync
h: width 720 start 738 end 846 total 900 skew 0 clock 31.47KHz
v: height 400 start 412 end 414 total 449 clock 70.08Hz
1920x1080_60.00 (0x198) 172.800MHz -HSync +VSync
h: width 1920 start 2040 end 2248 total 2576 skew 0 clock 67.08KHz
v: height 1080 start 1081 end 1084 total 1118 clock 60.00Hz
VIRTUAL1 disconnected (normal left inverted right x axis y axis)
Identifier: 0x45
Timestamp: 3934484
Subpixel: no subpixels
Clones:
CRTCs: 3
Transform: 1.000000 0.000000 0.000000
0.000000 1.000000 0.000000
0.000000 0.000000 1.000000
filter:
uname -a
Linux nikhil-HP-Pavilion-13-Notebook-PC 4.2.0-25-generic #30-Ubuntu SMP Mon Jan 18 12:31:50 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
屏幕上唯一显示的内容是“请检查您的连接”。
答案1
我想通过 HDMI 在桌面上安装第二台显示器。在启动过程中，HDMI 端口坏了。我通过禁用 X.Org X 服务器 Nouveau 显示驱动程序并在 Ubuntu 软件和更新 -> 额外驱动程序菜单中安装并选择 NVIDIA 二进制驱动程序 340.96 来解决这个问题。
现在我得到了双屏配置。