Kubuntu 14.04（64 位元），KDE 4.13.3，Java Oracle 1.7.0_80-b15
該問題首次出現於 12.04 並持續存在。 Java 版本不會影響該行為，即 1.6 到 1.8 也會發生同樣的情況。
複製：
- 啟動 2-3 個「常規」程序，例如 Firefox/Chrome/Kate。
- 啟動Java Swing應用程式（Intellij Idea / jvisualvm / Visual範例/其他）
- 點擊“顯示桌面”
- 啟動“常規”程序（firefox），它顯示全屏
問題：鍵盤焦點仍然在 Swing 應用程式中，如果您嘗試鍵入，輸入將發送到它。
如果您使用 Intelij 系列的某些 IDE，這會非常煩人，因為通常用於其他應用程式的輸入最終會出現在您的原始檔案中。
我已經嘗試過 KDE 的“焦點竊取預防”（系統設置 -> 視窗行為）的不同設置，但無濟於事。
不使用Swing 的Java 應用程式（例如Eclipse）不存在此問題。僅 Swing 應用程式。
有人有解決這個問題的方法嗎，或至少：
- 能夠確認
- 將我引導到合適的錯誤追蹤器（swing？kde？），以便我可以報告它
swing應用程式的xprop（Intellij idea）：
XdndAware(ATOM) = BITMAP
_MOTIF_DRAG_RECEIVER_INFO(_MOTIF_DRAG_RECEIVER_INFO) = 0x6c, 0x0, 0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0x0, 0x0, 0x0
WM_CLIENT_LEADER(WINDOW): window id # 0x1e0003c
_NET_WM_PID(CARDINAL) = 3581
_NET_WM_WINDOW_TYPE(ATOM) = _NET_WM_WINDOW_TYPE_DESKTOP
_MOTIF_WM_HINTS(_MOTIF_WM_HINTS) = 0x2, 0x1, 0x0, 0x0, 0x0
WM_PROTOCOLS(ATOM): protocols WM_DELETE_WINDOW, WM_TAKE_FOCUS, _NET_WM_PING, _NET_WM_SYNC_REQUEST
WM_NAME(STRING) = "plasma-desktop"
WM_LOCALE_NAME(STRING) = "en_US.UTF-8"
WM_CLASS(STRING) = "Plasma", "Plasma"
WM_HINTS(WM_HINTS):
Client accepts input or input focus: True
Initial state is Normal State.
bitmap id # to use for icon: 0x1e00235
window id # of group leader: 0x1e0003c
WM_NORMAL_HINTS(WM_SIZE_HINTS):
user specified location: 0, 0
program specified location: 0, 0
user specified size: 1920 by 1080
program specified size: 1920 by 1080
window gravity: Static
WM_CLIENT_MACHINE(STRING) = "OgrePC"
WM_COMMAND(STRING) = { "/usr/bin/plasma-desktop" }
ogre@OgrePC:~/aprojects-src/as_projects/besenica/besenica_core$ xprop
_MOTIF_DRAG_RECEIVER_INFO(_MOTIF_DRAG_RECEIVER_INFO) = 0x6c, 0x0, 0x5, 0x0, 0x45, 0x0, 0x40, 0x3, 0x0, 0x0, 0x0, 0x0, 0x10, 0x0, 0x0, 0x0
XdndAware(ATOM) = BITMAP
_NET_WM_ICON_GEOMETRY(CARDINAL) = 107, 1011, 202, 34
WM_STATE(WM_STATE):
window state: Normal
icon window: 0x0
_NET_WM_ALLOWED_ACTIONS(ATOM) = _NET_WM_ACTION_MOVE, _NET_WM_ACTION_RESIZE, _NET_WM_ACTION_MINIMIZE, _NET_WM_ACTION_SHADE, _NET_WM_ACTION_MAXIMIZE_VERT, _NET_WM_ACTION_MAXIMIZE_HORZ, _NET_WM_ACTION_FULLSCREEN, _NET_WM_ACTION_CHANGE_DESKTOP, _NET_WM_ACTION_CLOSE
_KDE_NET_WM_FRAME_STRUT(CARDINAL) = 0, 0, 20, 0
_NET_FRAME_EXTENTS(CARDINAL) = 0, 0, 20, 0
_NET_WM_DESKTOP(CARDINAL) = 0
_KDE_NET_WM_ACTIVITIES(STRING) = "5c2b1a8d-8274-46bf-abfa-a0db6a775d03"
_NET_WM_WINDOW_TYPE(ATOM) = _NET_WM_WINDOW_TYPE_NORMAL
_MOTIF_WM_HINTS(_MOTIF_WM_HINTS) = 0x3, 0x1, 0x1, 0x0, 0x0
_NET_WM_STATE(ATOM) = _NET_WM_STATE_MAXIMIZED_VERT, _NET_WM_STATE_MAXIMIZED_HORZ
WM_HINTS(WM_HINTS):
Client accepts input or input focus: False
Initial state is Normal State.
_NET_WM_ICON(CARDINAL) = Icon (128 x 128):
_NET_WM_PID(CARDINAL) = 9027
WM_CLIENT_MACHINE(STRING) = "OgrePC"
WM_PROTOCOLS(ATOM): protocols WM_TAKE_FOCUS, WM_DELETE_WINDOW
_KDE_NET_WM_USER_CREATION_TIME(CARDINAL) = 35443779
WM_CLASS(STRING) = "sun-awt-X11-XFramePeer", "jetbrains-idea-ce"
WM_CLIENT_LEADER(WINDOW): window id # 0x3400005
_NET_WM_ICON_NAME(UTF8_STRING) = "gg_platform - [~/aprojects-src/as_projects/gg_platform] - gg_platform_kryo_server - IntelliJ IDEA 14.1.2"
WM_ICON_NAME(STRING) = "gg_platform - [~/aprojects-src/as_projects/gg_platform] - gg_platform_kryo_server - IntelliJ IDEA 14.1.2"
_NET_WM_NAME(UTF8_STRING) = "gg_platform - [~/aprojects-src/as_projects/gg_platform] - gg_platform_kryo_server - IntelliJ IDEA 14.1.2"
WM_NAME(STRING) = "gg_platform - [~/aprojects-src/as_projects/gg_platform] - gg_platform_kryo_server - IntelliJ IDEA 14.1.2"
WM_NORMAL_HINTS(WM_SIZE_HINTS):
user specified location: -3, -3
program specified location: -3, -3
program specified size: 1916 by 984
window gravity: NorthWest
桌面的 xprop：
_NET_WM_USER_TIME(CARDINAL) = 43963890
_KDE_NET_WM_ACTIVITIES(STRING) = "00000000-0000-0000-0000-000000000000"
WM_STATE(WM_STATE):
window state: Normal
icon window: 0x0
_NET_WM_STATE(ATOM) =
_NET_WM_ALLOWED_ACTIONS(ATOM) = _NET_WM_ACTION_CHANGE_DESKTOP
_NET_WM_SYNC_REQUEST_COUNTER(CARDINAL) = 31457847
_KDE_NET_WM_USER_CREATION_TIME(CARDINAL) = 133564
_NET_STARTUP_ID(UTF8_STRING) = "0"
_NET_WM_DESKTOP(CARDINAL) = 4294967295
_NET_WM_ICON(CARDINAL) = Icon (16 x 16):
XdndAware(ATOM) = BITMAP
_MOTIF_DRAG_RECEIVER_INFO(_MOTIF_DRAG_RECEIVER_INFO) = 0x6c, 0x0, 0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0x0, 0x0, 0x0
WM_CLIENT_LEADER(WINDOW): window id # 0x1e0003c
_NET_WM_PID(CARDINAL) = 3581
_NET_WM_WINDOW_TYPE(ATOM) = _NET_WM_WINDOW_TYPE_DESKTOP
_MOTIF_WM_HINTS(_MOTIF_WM_HINTS) = 0x2, 0x1, 0x0, 0x0, 0x0
WM_PROTOCOLS(ATOM): protocols WM_DELETE_WINDOW, WM_TAKE_FOCUS, _NET_WM_PING, _NET_WM_SYNC_REQUEST
WM_NAME(STRING) = "plasma-desktop"
WM_LOCALE_NAME(STRING) = "en_US.UTF-8"
WM_CLASS(STRING) = "Plasma", "Plasma"
WM_HINTS(WM_HINTS):
Client accepts input or input focus: True
Initial state is Normal State.
bitmap id # to use for icon: 0x1e00235
window id # of group leader: 0x1e0003c
WM_NORMAL_HINTS(WM_SIZE_HINTS):
user specified location: 0, 0
program specified location: 0, 0
user specified size: 1920 by 1080
program specified size: 1920 by 1080
window gravity: Static
WM_CLIENT_MACHINE(STRING) = "OgrePC"
WM_COMMAND(STRING) = { "/usr/bin/plasma-desktop" }
程式（firefox）的 xprop 在「顯示桌面」之後啟動
_NET_WM_ICON_GEOMETRY(CARDINAL) = 1163, 1045, 176, 34
WM_STATE(WM_STATE):
window state: Normal
icon window: 0x0
_NET_WM_ALLOWED_ACTIONS(ATOM) = _NET_WM_ACTION_MOVE, _NET_WM_ACTION_RESIZE, _NET_WM_ACTION_MINIMIZE, _NET_WM_ACT
_KDE_NET_WM_FRAME_STRUT(CARDINAL) = 3, 3, 23, 4
_NET_FRAME_EXTENTS(CARDINAL) = 3, 3, 23, 4
_NET_WM_DESKTOP(CARDINAL) = 0
_KDE_NET_WM_ACTIVITIES(STRING) = "5c2b1a8d-8274-46bf-abfa-a0db6a775d03"
_NET_WM_STATE(ATOM) = _NET_WM_STATE_MAXIMIZED_VERT, _NET_WM_STATE_MAXIMIZED_HORZ
WM_HINTS(WM_HINTS):
Client accepts input or input focus: True
Initial state is Normal State.
bitmap id # to use for icon: 0x3e6967d
bitmap id # of mask for icon: 0x3e6967e
window id # of group leader: 0x3e00001
WM_WINDOW_ROLE(STRING) = "browser"
_KDE_NET_WM_USER_CREATION_TIME(CARDINAL) = 44424608
XdndAware(ATOM) = BITMAP
_MOTIF_DRAG_RECEIVER_INFO(_MOTIF_DRAG_RECEIVER_INFO) = 0x6c, 0x0, 0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0
_NET_WM_ICON(CARDINAL) = Icon (16 x 16):
_NET_WM_ICON_GEOMETRY(CARDINAL) = 1163, 1045, 176, 34
WM_STATE(WM_STATE):
window state: Normal
icon window: 0x0
_NET_WM_ALLOWED_ACTIONS(ATOM) = _NET_WM_ACTION_MOVE, _NET_WM_ACTION_RESIZE, _NET_WM_ACTION_MINIMIZE, _NET_WM_ACTION_SHADE, _NET_WM_ACTION_MAXIMIZE_VERT, _NET_WM_ACTION_MAXIMIZE_HORZ, _NET_WM_ACTION_FULLSCREEN, _NET_WM_ACTION_CHANGE_DESKTOP, _NET_WM_ACTION_CLOSE
_KDE_NET_WM_FRAME_STRUT(CARDINAL) = 3, 3, 23, 4
_NET_FRAME_EXTENTS(CARDINAL) = 3, 3, 23, 4
_NET_WM_DESKTOP(CARDINAL) = 0
_KDE_NET_WM_ACTIVITIES(STRING) = "5c2b1a8d-8274-46bf-abfa-a0db6a775d03"
_NET_WM_STATE(ATOM) = _NET_WM_STATE_MAXIMIZED_VERT, _NET_WM_STATE_MAXIMIZED_HORZ
WM_HINTS(WM_HINTS):
Client accepts input or input focus: True
Initial state is Normal State.
bitmap id # to use for icon: 0x3e59b19
bitmap id # of mask for icon: 0x3e59b1a
window id # of group leader: 0x3e00001
_NET_STARTUP_ID(UTF8_STRING) = "OgrePC;1430761118;209192;3581_TIME42982583"
WM_WINDOW_ROLE(STRING) = "browser"
_KDE_NET_WM_USER_CREATION_TIME(CARDINAL) = 42982594
XdndAware(ATOM) = BITMAP
_MOTIF_DRAG_RECEIVER_INFO(_MOTIF_DRAG_RECEIVER_INFO) = 0x6c, 0x0, 0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0x0, 0x0, 0x0
_NET_WM_ICON(CARDINAL) = Icon (16 x 16):
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Icon (32 x 32):
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_NET_WM_SYNC_REQUEST_COUNTER(CARDINAL) = 65379096
_NET_WM_WINDOW_TYPE(ATOM) = _NET_WM_WINDOW_TYPE_NORMAL
_NET_WM_USER_TIME(CARDINAL) = 42982583
_NET_WM_USER_TIME_WINDOW(WINDOW): window id # 0x3e59b17
WM_CLIENT_LEADER(WINDOW): window id # 0x3e00001
_NET_WM_PID(CARDINAL) = 9597
WM_LOCALE_NAME(STRING) = "en_US.UTF-8"
WM_CLIENT_MACHINE(STRING) = "OgrePC"
WM_NORMAL_HINTS(WM_SIZE_HINTS):
program specified minimum size: 300 by 154
program specified maximum size: 32767 by 32767
window gravity: NorthWest
WM_PROTOCOLS(ATOM): protocols WM_DELETE_WINDOW, WM_TAKE_FOCUS, _NET_WM_PING, _NET_WM_SYNC_REQUEST
WM_CLASS(STRING) = "Navigator", "Firefox"
WM_ICON_NAME(STRING) = "Mozilla Firefox"
_NET_WM_ICON_NAME(UTF8_STRING) = "Mozilla Firefox"
WM_NAME(STRING) = "Mozilla Firefox"
_NET_WM_NAME(UTF8_STRING) = "Mozilla Firefox"
答案1
我不是 KDE 用戶，但經過一番搜尋後，我發現這個論壇踩由有同樣問題的人。這是解決方案：
嘗試新增視窗規則（“kcmshell4 kwinrules”），並在“外觀和修復”標籤中，將“接受焦點”設為“強制”和“是”。
答案2
我對 Intelij 產品也有同樣的問題，但我使用 Gnome 3。當某些事件發生時，它也會竊取焦點；這通常會在原始碼中開啟一段 shell 命令來在 Rubymine 中進行編輯。不久前，我已經有過在一段運行完美的程式碼中尋找語法錯誤的色情經驗。感謝不知名的英雄，他懷著善意將它送給了我。
我認為這是 X-server 錯誤，因為不僅 KDE 受到影響。