我有 Ubuntu 14.04，可以自动登录我的会话和 Intel 显卡。我的目标是能够在没有任何屏幕连接的情况下启动 Ubuntu。我还想向左旋转。
实际上，如果我在启动后启动 DP 或 HDMI 显示器，我无法让它工作。X 服务器无法启动。过去我有 Nvidia 显卡，可以使用参数 allowemptyinitialconfiguration 来实现。对于我的英特尔卡，我尝试使用虚拟接口，但当我的显示器打开时它总是显示黑屏。
此外，如果我在启动 ubuntu 之前插入并启动显示器，显示器就可以工作，但关闭并打开显示器后旋转不会保持。
我尝试在 ~/.conf/ 中使用 monitors.xml，但此解决方案仅适用于一个供应商和型号的显示器。我想让它适用于任何显示器。
我发现的另一个解决方案是使用 udev 规则来检测更改并执行将使用 xrandr 配置旋转的脚本。此解决方案似乎有效，但有时它不会旋转。
这是输出xrandr --verbose & ls /sys/class/drm/*/edid | xargs -i{} sh -c "echo {}; parse-edid < {}"
/sys/class/drm/card0-DP-1/edid
Partial Read... Try again
/sys/class/drm/card0-DP-2/edid
Checksum Correct
Section "Monitor"
Identifier "X474HB"
ModelName "X474HB"
VendorName "NEC"
# Monitor Manufactured week 4 of 2015
# EDID version 1.4
# Digital Display
DisplaySize 1040 590
Gamma 2.20
Option "DPMS" "true"
Horizsync 28-92
VertRefresh 23-85
# Maximum pixel clock is 300MHz
#Not giving standard mode: 1280x720, 60Hz
#Not giving standard mode: 1280x800, 60Hz
#Not giving standard mode: 1280x1024, 60Hz
#Not giving standard mode: 1400x1050, 60Hz
#Not giving standard mode: 1440x900, 60Hz
#Not giving standard mode: 1600x1200, 60Hz
#Not giving standard mode: 1680x1050, 60Hz
#Not giving standard mode: 1920x1200, 60Hz
#Extension block found. Parsing...
Hmm, you have data blocks, but not video ones... weird
Something strange happened. Please contact the author,
Matthew Kern at <[email protected]>
/sys/class/drm/card0-HDMI-A-1/edid
Partial Read... Try again
/sys/class/drm/card0-HDMI-A-2/edid
Partial Read... Try again
/sys/class/drm/card0-VGA-1/edid
Partial Read... Try again
root@cartelmatic:~# Screen 0: minimum 8 x 8, current 1920 x 1080, maximum 32767 x 32767
DP1 disconnected (normal left inverted right x axis y axis)
Identifier: 0x42
Timestamp: 8923
Subpixel: unknown
Clones:
CRTCs: 0 1
Transform: 1.000000 0.000000 0.000000
0.000000 1.000000 0.000000
0.000000 0.000000 1.000000
filter:
Broadcast RGB: Automatic
supported: Automatic, Full, Limited 16:235
audio: auto
supported: force-dvi, off, auto, on
DP2 connected primary 1920x1080+0+0 (0x49) normal (normal left inverted right x axis y axis) 1040mm x 585mm
Identifier: 0x43
Timestamp: 8923
Subpixel: unknown
Gamma: 1.0:1.0:1.0
Brightness: 1.0
Clones:
CRTC: 0
CRTCs: 0 1
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:
00ffffffffffff0038a33e2b01010101
04190104a5683b78e2927ba4564f9a27
0f474aa1090081c08100818090409500
a940b300d100023a801871382d40582c
450010494200001e000000fd0017551c
5c1e000a202020202020000000fc0058
34373448420a202020202020000000ff
0035313030303038344e4120200a011d
020318c14b900504130312141f202122
23090707830100000e1f008051001e30
4080370010494200001c662150b05100
1b304070360010494200001e662156aa
51001e30468f330010494200001e0474
007cf6705a80fc588a0010494200001e
04740030f2705a80b0588a0010494200
001e0000000000000000000000000025
Broadcast RGB: Automatic
supported: Automatic, Full, Limited 16:235
audio: auto
supported: force-dvi, off, auto, on
1920x1080 (0x49) 148.5MHz +HSync +VSync *current +preferred
h: width 1920 start 2008 end 2052 total 2200 skew 0 clock 67.5KHz
v: height 1080 start 1084 end 1089 total 1125 clock 60.0Hz
3840x2160 (0xbc) 297.0MHz +HSync +VSync
h: width 3840 start 4016 end 4104 total 4400 skew 0 clock 67.5KHz
v: height 2160 start 2168 end 2178 total 2250 clock 30.0Hz
3840x2160 (0xbd) 297.0MHz +HSync +VSync
h: width 3840 start 4092 end 4180 total 5500 skew 0 clock 54.0KHz
v: height 2160 start 2168 end 2178 total 2250 clock 24.0Hz
3840x2160 (0xbe) 296.7MHz +HSync +VSync
h: width 3840 start 4016 end 4104 total 4400 skew 0 clock 67.4KHz
v: height 2160 start 2168 end 2178 total 2250 clock 30.0Hz
1920x1200 (0xbf) 193.2MHz -HSync +VSync
h: width 1920 start 2056 end 2256 total 2592 skew 0 clock 74.6KHz
v: height 1200 start 1203 end 1209 total 1245 clock 59.9Hz
1920x1080 (0xc0) 148.5MHz +HSync +VSync
h: width 1920 start 2448 end 2492 total 2640 skew 0 clock 56.2KHz
v: height 1080 start 1084 end 1089 total 1125 clock 50.0Hz
1920x1080 (0xc1) 148.4MHz +HSync +VSync
h: width 1920 start 2008 end 2052 total 2200 skew 0 clock 67.4KHz
v: height 1080 start 1084 end 1089 total 1125 clock 59.9Hz
1920x1080i (0xc2) 74.2MHz +HSync +VSync Interlace
h: width 1920 start 2008 end 2052 total 2200 skew 0 clock 33.8KHz
v: height 1080 start 1084 end 1094 total 1125 clock 60.1Hz
1920x1080i (0xc3) 74.2MHz +HSync +VSync Interlace
h: width 1920 start 2448 end 2492 total 2640 skew 0 clock 28.1KHz
v: height 1080 start 1084 end 1094 total 1125 clock 50.0Hz
1920x1080 (0xc4) 74.2MHz +HSync +VSync
h: width 1920 start 2008 end 2052 total 2200 skew 0 clock 33.8KHz
v: height 1080 start 1084 end 1089 total 1125 clock 30.0Hz
1920x1080 (0xc5) 74.2MHz +HSync +VSync
h: width 1920 start 2448 end 2492 total 2640 skew 0 clock 28.1KHz
v: height 1080 start 1084 end 1089 total 1125 clock 25.0Hz
1920x1080 (0xc6) 74.2MHz +HSync +VSync
h: width 1920 start 2558 end 2602 total 2750 skew 0 clock 27.0KHz
v: height 1080 start 1084 end 1089 total 1125 clock 24.0Hz
1920x1080i (0xc7) 74.2MHz +HSync +VSync Interlace
h: width 1920 start 2008 end 2052 total 2200 skew 0 clock 33.7KHz
v: height 1080 start 1084 end 1094 total 1125 clock 60.0Hz
1920x1080 (0xc8) 74.2MHz +HSync +VSync
h: width 1920 start 2008 end 2052 total 2200 skew 0 clock 33.7KHz
v: height 1080 start 1084 end 1089 total 1125 clock 30.0Hz
1920x1080 (0xc9) 74.2MHz +HSync +VSync
h: width 1920 start 2558 end 2602 total 2750 skew 0 clock 27.0KHz
v: height 1080 start 1084 end 1089 total 1125 clock 24.0Hz
1600x1200 (0xca) 162.0MHz +HSync +VSync
h: width 1600 start 1664 end 1856 total 2160 skew 0 clock 75.0KHz
v: height 1200 start 1201 end 1204 total 1250 clock 60.0Hz
1680x1050 (0xcb) 146.2MHz -HSync +VSync
h: width 1680 start 1784 end 1960 total 2240 skew 0 clock 65.3KHz
v: height 1050 start 1053 end 1059 total 1089 clock 60.0Hz
1400x1050 (0xcc) 121.8MHz -HSync +VSync
h: width 1400 start 1488 end 1632 total 1864 skew 0 clock 65.3KHz
v: height 1050 start 1053 end 1057 total 1089 clock 60.0Hz
1280x1024 (0xcd) 135.0MHz +HSync +VSync
h: width 1280 start 1296 end 1440 total 1688 skew 0 clock 80.0KHz
v: height 1024 start 1025 end 1028 total 1066 clock 75.0Hz
1280x1024 (0xce) 108.0MHz +HSync +VSync
h: width 1280 start 1328 end 1440 total 1688 skew 0 clock 64.0KHz
v: height 1024 start 1025 end 1028 total 1066 clock 60.0Hz
1440x900 (0xcf) 106.5MHz -HSync +VSync
h: width 1440 start 1520 end 1672 total 1904 skew 0 clock 55.9KHz
v: height 900 start 903 end 909 total 934 clock 59.9Hz
1366x768 (0xd0) 85.5MHz +HSync +VSync
h: width 1366 start 1436 end 1579 total 1792 skew 0 clock 47.7KHz
v: height 768 start 771 end 774 total 798 clock 59.8Hz
1360x768 (0xd1) 85.5MHz +HSync +VSync
h: width 1360 start 1424 end 1536 total 1792 skew 0 clock 47.7KHz
v: height 768 start 771 end 777 total 795 clock 60.0Hz
1280x800 (0xd2) 83.5MHz +HSync -VSync
h: width 1280 start 1352 end 1480 total 1680 skew 0 clock 49.7KHz
v: height 800 start 803 end 809 total 831 clock 59.8Hz
1280x768 (0xd3) 79.5MHz -HSync +VSync
h: width 1280 start 1344 end 1472 total 1664 skew 0 clock 47.8KHz
v: height 768 start 771 end 778 total 798 clock 59.9Hz
1280x720 (0xd4) 74.4MHz -HSync +VSync
h: width 1280 start 1336 end 1472 total 1664 skew 0 clock 44.7KHz
v: height 720 start 721 end 724 total 746 clock 60.0Hz
1280x720 (0xd5) 74.2MHz +HSync +VSync
h: width 1280 start 1390 end 1430 total 1650 skew 0 clock 45.0KHz
v: height 720 start 725 end 730 total 750 clock 60.0Hz
1280x720 (0xd6) 74.2MHz +HSync +VSync
h: width 1280 start 1720 end 1760 total 1980 skew 0 clock 37.5KHz
v: height 720 start 725 end 730 total 750 clock 50.0Hz
1280x720 (0xd7) 74.2MHz +HSync +VSync
h: width 1280 start 1390 end 1430 total 1650 skew 0 clock 45.0KHz
v: height 720 start 725 end 730 total 750 clock 59.9Hz
1024x768 (0xd8) 65.0MHz -HSync -VSync
h: width 1024 start 1048 end 1184 total 1344 skew 0 clock 48.4KHz
v: height 768 start 771 end 777 total 806 clock 60.0Hz
800x600 (0xd9) 40.0MHz +HSync +VSync
h: width 800 start 840 end 968 total 1056 skew 0 clock 37.9KHz
v: height 600 start 601 end 605 total 628 clock 60.3Hz
720x576 (0xda) 27.0MHz -HSync -VSync
h: width 720 start 732 end 796 total 864 skew 0 clock 31.2KHz
v: height 576 start 581 end 586 total 625 clock 50.0Hz
720x480 (0xdb) 27.0MHz -HSync -VSync
h: width 720 start 736 end 798 total 858 skew 0 clock 31.5KHz
v: height 480 start 489 end 495 total 525 clock 60.0Hz
720x480 (0xdc) 27.0MHz -HSync -VSync
h: width 720 start 736 end 798 total 858 skew 0 clock 31.5KHz
v: height 480 start 489 end 495 total 525 clock 59.9Hz
640x480 (0xdd) 25.2MHz -HSync -VSync
h: width 640 start 656 end 752 total 800 skew 0 clock 31.5KHz
v: height 480 start 490 end 492 total 525 clock 60.0Hz
640x480 (0xde) 25.2MHz -HSync -VSync
h: width 640 start 656 end 752 total 800 skew 0 clock 31.5KHz
v: height 480 start 490 end 492 total 525 clock 59.9Hz
720x400 (0xdf) 28.3MHz -HSync +VSync
h: width 720 start 738 end 846 total 900 skew 0 clock 31.5KHz
v: height 400 start 412 end 414 total 449 clock 70.1Hz
HDMI1 disconnected (normal left inverted right x axis y axis)
Identifier: 0x44
Timestamp: 8923
Subpixel: unknown
Clones: VGA1
CRTCs: 0 1
Transform: 1.000000 0.000000 0.000000
0.000000 1.000000 0.000000
0.000000 0.000000 1.000000
filter:
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
HDMI2 disconnected (normal left inverted right x axis y axis)
Identifier: 0x45
Timestamp: 8923
Subpixel: unknown
Clones: VGA1
CRTCs: 0 1
Transform: 1.000000 0.000000 0.000000
0.000000 1.000000 0.000000
0.000000 0.000000 1.000000
filter:
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
VGA1 disconnected (normal left inverted right x axis y axis)
Identifier: 0x46
Timestamp: 8923
Subpixel: unknown
Clones: HDMI1 HDMI2
CRTCs: 0 1
Transform: 1.000000 0.000000 0.000000
0.000000 1.000000 0.000000
0.000000 0.000000 1.000000
filter:
VIRTUAL1 disconnected (normal left inverted right x axis y axis)
Identifier: 0x47
Timestamp: 8923
Subpixel: no subpixels
Clones:
CRTCs: 2
Transform: 1.000000 0.000000 0.000000
0.000000 1.000000 0.000000
0.000000 0.000000 1.000000
filter:
如果有人遇到过这个问题或者您有任何解决方案，请提供帮助。
答案1
最后我终于让它工作了。我没有对 Ubuntu 配置做任何更改。我只是更改了电视菜单中的参数。
为了让它工作，我将 HDMI 信号从 RAW 更改为 EXPAND，将 DisplayPort 1.1a 更改为 1.2。
现在我可以在不连接任何显示器的情况下启动 Ubuntu，并且在打开和关闭后左旋转可以正常进行。
有人可以向我解释一下这种现象吗？