Art*_*iak 5 kde multiple-monitors kubuntu plasma-5
我在 Kubuntu 16.04 上使用 KDE 5.35/Plasma 5.8 已经有一段时间了，我认为这是有史以来第一个在多个显示器上都没有问题的版本。至目前为止...
几个星期以来，我一直遇到 Plasma 小部件和面板的问题（我只有 1 个小部件 + 1 个面板）。我的默认配置是笔记本电脑（屏幕打开），带有扩展坞+通过站的显示端口连接的外部显示器。每隔几天我就需要拆下笔记本电脑，然后通过笔记本电脑的 VGA 端口连接投影仪。然后回到我的默认配置。
这已经工作了一段时间。但是在过去的几周里，当我将笔记本电脑连接回扩展坞时，小部件和面板是不可见的。Plasma 似乎“认为”这是另一种配置，并希望将其显示在另一个屏幕上。
很难说这到底是什么时候开始发生的。
任何想法如何调试问题？
ll .local/share/kscreen/
02b2519f10b073932721cd54471a5d31
0bc0f89da7e951d55bdfa65793aa345a
0faea465ff6c527f2aa69abb7c930e1a
155ff4718615fda4a9282c0b70d2cac2
191c4762f0984fc4cc0152d8105d3326
27017d423df578a745236143e3e26975
2916a81176ce7c981ab06bd0995f026d
3711daa6087565303445e59abd0dab22
42695ce0307127da62aae36c0c605aec
4e60e42f297aa863d831a17b07d96c8e
72d0666c5ae310ce6d8e75380df9a178
72d0666c5ae310ce6d8e75380df9a178_lidOpened
7b64f87a8dcd5140beff328b9eedbacf
8cf9a2afe62c0bb6a53787ccd0b96688
8cf9a2afe62c0bb6a53787ccd0b96688_lidOpened
8fcd01dc21bb29c21ffc70cae0a7eeda
a7bd88cd5eca9730b3ad4e6d34305ab8
b19a6594df416975d9ca6eebcc870b7f
c48ae748aca5918d355ddb5f219317fb
c48ae748aca5918d355ddb5f219317fb_lidOpened
d4da5d828750ea65d3c2966a4ac51ce4
d4da5d828750ea65d3c2966a4ac51ce4_lidOpened
f054a39fc3bd56d8db7b561b2b9b45f8
f572b8dbda3159ff1340e300891c5478
f572b8dbda3159ff1340e300891c5478_lidOpened
f78388f04b63d7028f0cc4fb881bc831
f78388f04b63d7028f0cc4fb881bc831_lidOpened
fbdb4927340a24964629ea70ddfb7ad8
kscreen.log
kscreen-console monitor > kscreen-changes.log
START: Requesting Config
Received config. Took 19 milliseconds
Remember to enable KSRandR or KSRandR11 in kdebugdialog
Screen:
maxSize: QSize(32767, 32767)
minSize: QSize(8, 8)
currentSize: QSize(3520, 1200)
-----------------------------------------------------
Id: 67
Name: "LVDS1"
Type: "Panel (Laptop)"
Connected: true
Enabled: true
Primary: true
Rotation: 1
Pos: QPoint(0,300)
MMSize: QSize(309, 174)
Size: QSize(1600, 900)
Clones: None
Mode: "77"
Preferred Mode: "77"
Preferred modes: ("77")
Modes:
"239" "" QSize(1600, 900) 40.0399
"240" "" QSize(1440, 900) 59.8874
"241" "" QSize(1368, 768) 60
"242" "" QSize(1360, 768) 59.799
"243" "" QSize(1360, 768) 59.96
"244" "" QSize(1152, 864) 59.9971
"245" "" QSize(1280, 720) 59.9995
"246" "" QSize(1024, 768) 60.0038
"247" "" QSize(1024, 576) 59.9989
"248" "" QSize(960, 540) 59.9991
"249" "" QSize(800, 600) 60.3165
"250" "" QSize(800, 600) 56.25
"251" "" QSize(864, 486) 59.9998
"252" "" QSize(800, 450) 59.9993
"253" "" QSize(640, 480) 59.9405
"254" "" QSize(720, 405) 60
"255" "" QSize(640, 360) 59.9971
"77" "" QSize(1600, 900) 60.0572
EDID Info:
Device ID: "xrandr-unknown"
Name: ""
Vendor: ""
Serial: ""
EISA ID: ""
Hash: "4e2dbe1d5420b32701f974e2318d6f34"
Width: 31
Height: 17
Gamma: 2
Red: QQuaternion(scalar:1, vector:(0.599609, 0.347656, 0))
Green: QQuaternion(scalar:1, vector:(0.320312, 0.570312, 0))
Blue: QQuaternion(scalar:1, vector:(0.150391, 0.129883, 0))
White: QQuaternion(scalar:1, vector:(0.313477, 0.329102, 0))
-----------------------------------------------------
Id: 68
Name: "DP1"
Type: "DisplayPort"
Connected: true
Enabled: true
Primary: false
Rotation: 1
Pos: QPoint(1600,0)
MMSize: QSize(518, 324)
Size: QSize(1920, 1200)
Clones: None
Mode: "256"
Preferred Mode: "256"
Preferred modes: ("256")
Modes:
"240" "" QSize(1440, 900) 59.8874
"246" "" QSize(1024, 768) 60.0038
"249" "" QSize(800, 600) 60.3165
"256" "" QSize(1920, 1200) 59.9502
"257" "" QSize(1920, 1080) 60
"258" "" QSize(1600, 1200) 60
"259" "" QSize(1680, 1050) 59.9543
"260" "" QSize(1280, 1024) 60.0197
"261" "" QSize(1280, 800) 59.8103
"262" "" QSize(1280, 720) 60
"263" "" QSize(640, 480) 60
"78" "" QSize(1600, 900) 60
EDID Info:
Device ID: "xrandr-HP E242-CNC60901QH"
Name: "HP E242"
Vendor: ""
Serial: "CNC60901QH"
EISA ID: ""
Hash: "bdb63d1785df48d2cc1cb3ffb2d929eb"
Width: 52
Height: 32
Gamma: 2
Red: QQuaternion(scalar:1, vector:(0.65332, 0.332031, 0))
Green: QQuaternion(scalar:1, vector:(0.303711, 0.632812, 0))
Blue: QQuaternion(scalar:1, vector:(0.150391, 0.0644531, 0))
White: QQuaternion(scalar:1, vector:(0.313477, 0.329102, 0))
-----------------------------------------------------
Id: 69
Name: "DP2"
Type: "DisplayPort"
Connected: false
-----------------------------------------------------
Id: 70
Name: "DP3"
Type: "DisplayPort"
Connected: false
-----------------------------------------------------
Id: 71
Name: "HDMI1"
Type: "HDMI"
Connected: false
-----------------------------------------------------
Id: 72
Name: "HDMI2"
Type: "HDMI"
Connected: false
-----------------------------------------------------
Id: 73
Name: "HDMI3"
Type: "HDMI"
Connected: false
-----------------------------------------------------
Id: 74
Name: "VGA1"
Type: "VGA"
Connected: false
-----------------------------------------------------
Id: 75
Name: "VIRTUAL1"
Type: "Unknown"
Connected: false
kscreen: Requesting missing EDID for outputs (67)
kscreen: Requesting missing EDID for outputs (67)
kscreen: Requesting missing EDID for outputs (67)
kscreen: Requesting missing EDID for outputs (67, 68)
kscreen: Requesting missing EDID for outputs (67, 68)
kscreen: Requesting missing EDID for outputs (67, 68)
我在这里更准确地在 superuser.com 上找到了一个解决方案：
这里我引用上面提到的答案：
根据您的情况出现此问题的原因，您可以通过编辑
plasma-org.kde.plasma.desktop-appletsrc文件然后执行来修复它Run Code Online (Sandbox Code Playgroud)kquitapp plasmashell && kstart plasmashell我遇到的一个原因是有问题的多显示器功能有时会在我连接到外部显示器然后断开连接后从我的笔记本电脑屏幕上“丢失”任务栏（我认为这是在等离子 5.5 或 5.6 中）。在这种情况下，我发现问题出在任务栏配置中的 lastScreen 设置上。要解决此问题，请在plasma-org.kde.plasma.desktop-appletsrc 中找到如下所示的文本部分：
Run Code Online (Sandbox Code Playgroud)[Containments][1] activityId= formfactor=2 immutability=1 lastScreen=1 location=4 plugin=org.kde.panel wallpaperplugin=org.kde.image（其中一些行在您的配置中可能会有所不同。在我的文件中，这部分只有十几行，但我不知道可能会有多少不同。）
设置
lastscreen=0为我解决了问题。我假设那0代表我的笔记本电脑屏幕，并且1是外接显示器。