Xubuntu 画面撕裂，Ubuntu 没问题

Question

我的一台旧台式机上同时安装了 Ubuntu 14.04 和 Xubuntu 16.04。

虽然两者都工作正常，但我在 Xubuntu 中拖动窗口时遇到屏幕撕裂。但是，我没有在 Ubuntu 上体验过。

它使用主板内置的 AMD 图形芯片。

注意：这种确切的情况也适用于我的带有 GTX650 显卡的主桌面......

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在这一点上，我认为这与 Untiy 是 3D DE，而 XFCE 是 2D DE 有关系……

Answer 1

注意：这些说明已从Duncan Lock 的博客的原始来源中删节。

1. 禁用 XFCE 的内置合成器：

   

2. 打开终端，然后运行以下命令：

    sudo apt-get update
    sudo apt-get install compton
    cd ~/.config
    nano compton.conf
   

3. 将其粘贴到 Nano（请参阅此处查看评论版本）：

   backend = "glx";
   glx-no-stencil = true;
   glx-copy-from-front = false;
   glx-swap-method = "undefined";
   shadow = true;
   no-dnd-shadow = true;
   no-dock-shadow = true;
   clear-shadow = true;
   shadow-radius = 5;
   shadow-offset-x = -5;
   shadow-offset-y = -5;
   shadow-opacity = 0.5;
   shadow-exclude = [
       "! name~=''",
       "name = 'Notification'",
       "name = 'Plank'",
       "name = 'Docky'",
       "name = 'Kupfer'",
       "name = 'xfce4-notifyd'",
       "name *= 'VLC'",
       "name *= 'compton'",
       "name *= 'Chromium'",
       "name *= 'Chrome'",
       "name *= 'Firefox'",
       "class_g = 'Conky'",
       "class_g = 'Kupfer'",
       "class_g = 'Synapse'",
       "class_g ?= 'Notify-osd'",
       "class_g ?= 'Cairo-dock'",
       "class_g ?= 'Xfce4-notifyd'",
       "class_g ?= 'Xfce4-power-manager'"
   ];
   shadow-ignore-shaped = false;
   menu-opacity = 1;
   inactive-opacity = 1;
   active-opacity = 1;
   frame-opacity = 1;
   inactive-opacity-override = false;
   alpha-step = 0.06;
   blur-background-fixed = false;
   blur-background-exclude = [
       "window_type = 'dock'",
       "window_type = 'desktop'"
   ];
   fading = true;
   fade-delta = 4;
   fade-in-step = 0.03;
   fade-out-step = 0.03;
   fade-exclude = [ ];
   mark-wmwin-focused = true;
   mark-ovredir-focused = true;
   use-ewmh-active-win = true;
   detect-rounded-corners = true;
   detect-client-opacity = true;
   refresh-rate = 0;
   vsync = "opengl-swc";
   dbe = false;
   paint-on-overlay = true;
   sw-opti = false;
   unredir-if-possible = true;
   focus-exclude = [ ];
   detect-transient = true;
   detect-client-leader = true;
   wintypes:
   {
       tooltip =
       {
           fade = true;
           shadow = false;
           opacity = 0.85;
           focus = true;
       };
   };
   

4. 按CTRL+X然后Y然后Enter保存并退出。

5. 现在，运行此命令： compton

   你的屏幕会闪烁，你将不再有画面撕裂！

6. 最后，只需将其添加到您的启动应用程序中：