我在 Ubuntu 上遇到了一个有趣的问题，通过 HDMI 连接了 2 个显示器。
其中一个（HDMI2）60.00 两次1920x1080xrandr 输出中的分辨率。这
怎么可能呢？有什么方法可以解决这个问题吗？我认为，同样的分辨率使用同样的刷新率是不行的。
当我们需要使用全高清分辨率 (1920*1080) 时，这给我们扩展显示器和在每个屏幕上独立运行 Chrome 带来了问题。
更确切地说，我们以这种方式调用 xrandr 来连接 (扩展) 2 个屏幕：
xrandr --output HDMI1 --primary --mode 1920x1080 --pos 0x0 --output HDMI2 --mode 1920x1080 --pos 1920x0
结果类似1920x1080 60.00* 60.00 59.94。但两个网络浏览器（Chrome）都在屏幕 HDMI1 上运行，而不是在每个屏幕上独立运行。但是，通过 Ubuntu 的本机显示器设置扩展屏幕，我们得到了这个 xrandr 输出：
1920x1080 60.00 60.00* 59.94。在这种情况下，网络浏览器可以在每个屏幕上独立运行。<- 想要的行为。PS：在这两种情况下，
我们都运行第二个 Chrome 浏览器，--window-position=1920,0但在第一种情况下，这似乎被完全忽略了，因为 Chrome 在屏幕一（HDMI1）上运行。
有什么想法吗？
输出xrandr --verbose：
HDMI2 connected 1920x1080+1920+0 (0x1d0) normal (normal left inverted right x axis y axis) 610mm x 0mm
Identifier: 0x43
Timestamp: 16781814
Subpixel: unknown
Gamma: 1.0:1.0:1.0
Brightness: 1.0
Clones:
CRTC: 1
CRTCs: 0 1 2
Transform: 1.000000 0.000000 0.000000
0.000000 1.000000 0.000000
0.000000 0.000000 1.000000
filter:
_MUTTER_PRESENTATION_OUTPUT: 0
EDID:
00ffffffffffff0021943b2a01010101
1e130103a33d0078efee91a3544c9926
0f5054000000d100a9c0d1c095008140
81809040a940283c80a070b023403020
3600d8870000001e000000fd0028550a
6e15ff0a202020202020000000fc0057
61766553686172650a202020000000ff
00303130303932330a2020202020018e
02031a74474c00000000000023090701
8301000065030c001000283c80a070b0
234030203600d8870000001e00000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000094
HDCP Content Type: HDCP Type0
supported: HDCP Type0, HDCP Type1
Content Protection: Undesired
supported: Undesired, Desired, Enabled
max bpc: 12
range: (8, 12)
content type: No Data
supported: No Data, Graphics, Photo, Cinema, Game
Colorspace: Default
supported: Default, SMPTE_170M_YCC, BT709_YCC, XVYCC_601, XVYCC_709, SYCC_601, opYCC_601, opRGB, BT2020_CYCC, BT2020_RGB, BT2020_YCC, DCI-P3_RGB_D65, DCI-P3_RGB_Theater
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
link-status: Good
supported: Good, Bad
non-desktop: 0
range: (0, 1)
1920x1200 (0x47) 154.000MHz +HSync +VSync +preferred
h: width 1920 start 1968 end 2000 total 2080 skew 0 clock 74.04KHz
v: height 1200 start 1203 end 1209 total 1235 clock 59.95Hz
1920x1080 (0x1d0) 148.500MHz -HSync -VSync *current
h: width 1920 start 2008 end 2052 total 2200 skew 0 clock 67.50KHz
v: height 1080 start 1084 end 1089 total 1125 clock 60.00Hz
1920x1080 (0x46) 148.500MHz +HSync +VSync
h: width 1920 start 2008 end 2052 total 2200 skew 0 clock 67.50KHz
v: height 1080 start 1084 end 1089 total 1125 clock 60.00Hz
1920x1080 (0x1b5) 148.352MHz +HSync +VSync
h: width 1920 start 2008 end 2052 total 2200 skew 0 clock 67.43KHz
v: height 1080 start 1084 end 1089 total 1125 clock 59.94Hz
1600x1200 (0x1d1) 202.500MHz +HSync +VSync
h: width 1600 start 1664 end 1856 total 2160 skew 0 clock 93.75KHz
v: height 1200 start 1201 end 1204 total 1250 clock 75.00Hz
1600x1200 (0x1d2) 189.000MHz +HSync +VSync
h: width 1600 start 1664 end 1856 total 2160 skew 0 clock 87.50KHz
v: height 1200 start 1201 end 1204 total 1250 clock 70.00Hz
1600x1200 (0x1d3) 175.500MHz +HSync +VSync
h: width 1600 start 1664 end 1856 total 2160 skew 0 clock 81.25KHz
v: height 1200 start 1201 end 1204 total 1250 clock 65.00Hz
1600x1200 (0x1bb) 162.000MHz +HSync +VSync
h: width 1600 start 1664 end 1856 total 2160 skew 0 clock 75.00KHz
v: height 1200 start 1201 end 1204 total 1250 clock 60.00Hz
1680x1050 (0x1d4) 214.750MHz -HSync +VSync
h: width 1680 start 1808 end 1984 total 2288 skew 0 clock 93.86KHz
v: height 1050 start 1053 end 1059 total 1105 clock 84.94Hz
1680x1050 (0x1d5) 187.000MHz -HSync +VSync
h: width 1680 start 1800 end 1976 total 2272 skew 0 clock 82.31KHz
v: height 1050 start 1053 end 1059 total 1099 clock 74.89Hz
1680x1050 (0x1d6) 119.000MHz +HSync -VSync
h: width 1680 start 1728 end 1760 total 1840 skew 0 clock 64.67KHz
v: height 1050 start 1053 end 1059 total 1080 clock 59.88Hz
1400x1050 (0x1d7) 179.500MHz -HSync +VSync
h: width 1400 start 1504 end 1656 total 1912 skew 0 clock 93.88KHz
v: height 1050 start 1053 end 1057 total 1105 clock 84.96Hz
1400x1050 (0x1d8) 156.000MHz -HSync +VSync
h: width 1400 start 1504 end 1648 total 1896 skew 0 clock 82.28KHz
v: height 1050 start 1053 end 1057 total 1099 clock 74.87Hz
1400x1050 (0x1d9) 101.000MHz +HSync -VSync
h: width 1400 start 1448 end 1480 total 1560 skew 0 clock 64.74KHz
v: height 1050 start 1053 end 1057 total 1080 clock 59.95Hz
1600x900 (0x1da) 108.000MHz +HSync +VSync
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
1280x1024 (0x1db) 157.500MHz +HSync +VSync
h: width 1280 start 1344 end 1504 total 1728 skew 0 clock 91.15KHz
v: height 1024 start 1025 end 1028 total 1072 clock 85.02Hz
1280x1024 (0x1bc) 135.000MHz +HSync +VSync
h: width 1280 start 1296 end 1440 total 1688 skew 0 clock 79.98KHz
v: height 1024 start 1025 end 1028 total 1066 clock 75.02Hz
1280x1024 (0x1bd) 108.000MHz +HSync +VSync
h: width 1280 start 1328 end 1440 total 1688 skew 0 clock 63.98KHz
v: height 1024 start 1025 end 1028 total 1066 clock 60.02Hz
1440x900 (0x1dc) 157.000MHz -HSync +VSync
h: width 1440 start 1544 end 1696 total 1952 skew 0 clock 80.43KHz
v: height 900 start 903 end 909 total 948 clock 84.84Hz
1440x900 (0x1dd) 136.750MHz -HSync +VSync
h: width 1440 start 1536 end 1688 total 1936 skew 0 clock 70.64KHz
v: height 900 start 903 end 909 total 942 clock 74.98Hz
1440x900 (0x1de) 88.750MHz +HSync -VSync
h: width 1440 start 1488 end 1520 total 1600 skew 0 clock 55.47KHz
v: height 900 start 903 end 909 total 926 clock 59.90Hz
1280x960 (0x1df) 148.500MHz +HSync +VSync
h: width 1280 start 1344 end 1504 total 1728 skew 0 clock 85.94KHz
v: height 960 start 961 end 964 total 1011 clock 85.00Hz
1280x960 (0x1e0) 108.000MHz +HSync +VSync
h: width 1280 start 1376 end 1488 total 1800 skew 0 clock 60.00KHz
v: height 960 start 961 end 964 total 1000 clock 60.00Hz
1366x768 (0x1e1) 85.500MHz +HSync +VSync
h: width 1366 start 1436 end 1579 total 1792 skew 0 clock 47.71KHz
v: height 768 start 771 end 774 total 798 clock 59.79Hz
1360x768 (0x1e2) 85.500MHz +HSync +VSync
h: width 1360 start 1424 end 1536 total 1792 skew 0 clock 47.71KHz
v: height 768 start 771 end 777 total 795 clock 60.02Hz
1280x800 (0x1e3) 122.500MHz -HSync +VSync
h: width 1280 start 1360 end 1496 total 1712 skew 0 clock 71.55KHz
v: height 800 start 803 end 809 total 843 clock 84.88Hz
1280x800 (0x1e4) 106.500MHz -HSync +VSync
h: width 1280 start 1360 end 1488 total 1696 skew 0 clock 62.79KHz
v: height 800 start 803 end 809 total 838 clock 74.93Hz
1280x800 (0x1e5) 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 (0x1be) 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
1280x768 (0x1e6) 117.500MHz -HSync +VSync
h: width 1280 start 1360 end 1496 total 1712 skew 0 clock 68.63KHz
v: height 768 start 771 end 778 total 809 clock 84.84Hz
1280x768 (0x1e7) 102.250MHz -HSync +VSync
h: width 1280 start 1360 end 1488 total 1696 skew 0 clock 60.29KHz
v: height 768 start 771 end 778 total 805 clock 74.89Hz
1280x768 (0x1e8) 68.250MHz +HSync -VSync
h: width 1280 start 1328 end 1360 total 1440 skew 0 clock 47.40KHz
v: height 768 start 771 end 778 total 790 clock 59.99Hz
1280x720 (0x1bf) 74.250MHz +HSync +VSync
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
1024x768 (0x1e9) 94.500MHz +HSync +VSync
h: width 1024 start 1072 end 1168 total 1376 skew 0 clock 68.68KHz
v: height 768 start 769 end 772 total 808 clock 85.00Hz
1024x768 (0x1c2) 78.750MHz +HSync +VSync
h: width 1024 start 1040 end 1136 total 1312 skew 0 clock 60.02KHz
v: height 768 start 769 end 772 total 800 clock 75.03Hz
1024x768 (0x1ea) 75.000MHz -HSync -VSync
h: width 1024 start 1048 end 1184 total 1328 skew 0 clock 56.48KHz
v: height 768 start 771 end 777 total 806 clock 70.07Hz
1024x768 (0x1c3) 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
800x600 (0x1eb) 56.250MHz +HSync +VSync
h: width 800 start 832 end 896 total 1048 skew 0 clock 53.67KHz
v: height 600 start 601 end 604 total 631 clock 85.06Hz
800x600 (0x1ec) 50.000MHz +HSync +VSync
h: width 800 start 856 end 976 total 1040 skew 0 clock 48.08KHz
v: height 600 start 637 end 643 total 666 clock 72.19Hz
800x600 (0x1c4) 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 (0x1c5) 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 (0x1ed) 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
848x480 (0x1ee) 33.750MHz +HSync +VSync
h: width 848 start 864 end 976 total 1088 skew 0 clock 31.02KHz
v: height 480 start 486 end 494 total 517 clock 60.00Hz
640x480 (0x1ef) 36.000MHz -HSync -VSync
h: width 640 start 696 end 752 total 832 skew 0 clock 43.27KHz
v: height 480 start 481 end 484 total 509 clock 85.01Hz
640x480 (0x1cc) 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 (0x1f0) 31.500MHz -HSync -VSync
h: width 640 start 664 end 704 total 832 skew 0 clock 37.86KHz
v: height 480 start 489 end 492 total 520 clock 72.81Hz
640x480 (0x1ce) 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 (0x1f1) 35.500MHz -HSync +VSync
h: width 720 start 756 end 828 total 936 skew 0 clock 37.93KHz
v: height 400 start 401 end 404 total 446 clock 85.04Hz
640x400 (0x1f2) 31.500MHz -HSync +VSync
h: width 640 start 672 end 736 total 832 skew 0 clock 37.86KHz
v: height 400 start 401 end 404 total 445 clock 85.08Hz
640x350 (0x1f3) 31.500MHz +HSync -VSync
h: width 640 start 672 end 736 total 832 skew 0 clock 37.86KHz
v: height 350 start 382 end 385 total 445 clock 85.08Hz
输出sudo get-edid -b 1 -q|parse-edid：
1
Checksum Correct
Section "Monitor"
Identifier "RTK FHD"
ModelName "RTK FHD"
VendorName "RTK"
# Monitor Manufactured week 23 of 2011
# EDID version 1.3
# Digital Display
DisplaySize 520 320
Gamma 2.20
Option "DPMS" "true"
Horizsync 30-81
VertRefresh 56-76
# Maximum pixel clock is 170MHz
#Not giving standard mode: 1280x1024, 60Hz
#Not giving standard mode: 1600x1200, 60Hz
#Not giving standard mode: 1920x1080, 60Hz
#Not giving standard mode: 1152x864, 75Hz
#Extension block found. Parsing...
Modeline "Mode 17" 148.50 1920 2008 2052 2200 1080 1084 1089 1125 +hsync +vsync
Modeline "Mode 0" 148.50 1920 2008 2052 2200 1080 1084 1089 1125 +hsync +vsync
Modeline "Mode 1" 148.500 1920 2008 2052 2200 1080 1084 1089 1125 +hsync +vsync
Modeline "Mode 2" 74.250 1920 2008 2052 2200 1080 1082 1087 1125 +hsync +vsync interlace
Modeline "Mode 3" 74.250 1280 1390 1420 1650 720 725 730 750 +hsync +vsync
Modeline "Mode 4" 27.027 720 736 798 858 480 489 495 525 -hsync -vsync
Modeline "Mode 5" 27.027 720 736 798 858 480 489 495 525 -hsync -vsync
Modeline "Mode 6" 27.027 1440 1478 1602 1716 480 484 487 525 -hsync -vsync interlace
Modeline "Mode 7" 27.000 1440 1464 1590 1728 576 578 581 625 -hsync -vsync interlace
Modeline "Mode 8" 25.200 640 656 752 800 480 490 492 525 -hsync -vsync
Modeline "Mode 9" 148.500 1920 2448 2492 2640 1080 1084 1089 1125 +hsync +vsync
Modeline "Mode 10" 27.000 720 732 796 864 576 581 586 625 -hsync -vsync
Modeline "Mode 11" 74.250 1280 1720 1760 1980 720 725 730 750 +hsync +vsync
Modeline "Mode 12" 74.250 1920 2448 2492 2640 1080 1082 1089 1125 +hsync +vsync interlace
Modeline "Mode 13" 74.250 1920 2558 2602 2750 1080 1084 1089 1125 +hsync +vsync
Modeline "Mode 14" 27.000 1440 1464 1590 1728 576 578 581 625 -hsync -vsync interlace
Modeline "Mode 15" 27.000 720 732 796 864 576 581 586 625 -hsync -vsync
Modeline "Mode 16" 27.027 1440 1478 1602 1716 480 484 487 525 -hsync -vsync interlace
Modeline "Mode 18" 74.25 1920 2008 2052 2200 540 542 547 562 +hsync +vsync interlace
Modeline "Mode 19" 74.25 1280 1390 1430 1650 720 725 730 750 +hsync +vsync
Modeline "Mode 20" 27.00 720 736 798 858 480 489 495 525 -hsync -vsync
Option "PreferredMode" "Mode 17"
EndSection