Xubuntu 会出现屏幕撕裂的情况，Ubuntu 则没有问题

Question

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

虽然两者都运行良好，但我在 Xubuntu 中拖动窗口时遇到了屏幕撕裂的情况。不过，我在 Ubuntu 上没有遇到这种情况。

它使用主板内置的 AMD 图形芯片。

笔记：这种确切的情况也适用于配备 GTX650 显卡的主台式机......

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此时，我认为这与 Untiy 作为 3D DE 而 XFCE 作为 2D DE 有关...

Answer 1

注：这些指示已从邓肯·洛克 (Duncan Lock) 博客的原始来源。

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1. 禁用 XFCE 的内置合成器：

   

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2. 打开终端并运行以下命令：

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

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3. 将其粘贴到 Nano 中（参见这里参见评论版本）：

   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;
       };
   };
   

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4. 按CTRL+X然后Y按Enter保存并退出。

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5. 现在运行此命令：compton

   您的屏幕将不再闪烁，并且将不再出现画面撕裂！

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6. 最后，只需将其添加到您的启动应用程序中：