此升级的核心是Ubuntu 14.04.3。中的最新硬件支持堆栈
。它包含Linux内核的3.19版和
更新的Mesa，该版本修复了可怕的“双光标”故障。


$ uname -a
Linux alex0007 3.16.0-48-generic #64~14.04.1-Ubuntu SMP Thu Aug 20 23:03:57 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux


#1 楼

来自官方的基本博客：


如果您已经在运行Freya，则在常规更新中将已经收到上述所有内容（除了新增的硬件支持以外） 。


如果您真的需要3.19内核，请尝试：

sudo apt-get install linux-generic-lts-vivid


#2 楼

您可以在不重新安装系统的情况下更新内核和台面。

在终端中输入以下命令：

sudo apt-get install --install-recommends linux-generic-lts-vivid xserver-xorg-core-lts-vivid xserver-xorg-lts-vivid xserver-xorg-video-all-lts-vivid xserver-xorg-input-all-lts-vivid libwayland-egl1-mesa-lts-vivid


如果您运行多体系结构桌面（对于例如，用于游戏或Wine的i386和amd64在amd64上），您可能会发现需要一个稍微复杂一些的命令，例如：

sudo apt-get install --install-recommends linux-generic-lts-vivid xserver-xorg-core-lts-vivid xserver-xorg-lts-vivid xserver-xorg-video-all-lts-vivid xserver-xorg-input-all-lts-vivid libwayland-egl1-mesa-lts-vivid libgl1-mesa-glx-lts-vivid libgl1-mesa-glx-lts-vivid:i386 libglapi-mesa-lts-vivid:i386


警告！注意这一点，系统可能会失败。在按Y之前检查要删除的软件包。对于我来说，一切都很好，看起来像这样：

maxim@ProBook:~$ sudo apt-get install --install-recommends linux-generic-lts-vivid xserver-xorg-core-lts-vivid xserver-xorg-lts-vivid xserver-xorg-video-all-lts-vivid xserver-xorg-input-all-lts-vivid libwayland-egl1-mesa-lts-vivid
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following extra packages will be installed:
  libegl1-mesa-lts-vivid libgbm1-lts-vivid libgl1-mesa-dri-lts-vivid
  libgl1-mesa-glx-lts-vivid libglapi-mesa-lts-vivid libgles1-mesa-lts-vivid
  libgles2-mesa-lts-vivid libllvm3.6 libxatracker2-lts-vivid
  linux-headers-3.19.0-25 linux-headers-3.19.0-25-generic
  linux-headers-generic-lts-vivid linux-image-3.19.0-25-generic
  linux-image-extra-3.19.0-25-generic linux-image-generic-lts-vivid
  xserver-xorg-input-evdev-lts-vivid xserver-xorg-input-mouse-lts-vivid
  xserver-xorg-input-synaptics-lts-vivid xserver-xorg-input-vmmouse-lts-vivid
  xserver-xorg-input-wacom-lts-vivid xserver-xorg-video-ati-lts-vivid
  xserver-xorg-video-cirrus-lts-vivid xserver-xorg-video-fbdev-lts-vivid
  xserver-xorg-video-intel-lts-vivid xserver-xorg-video-mach64-lts-vivid
  xserver-xorg-video-mga-lts-vivid xserver-xorg-video-neomagic-lts-vivid
  xserver-xorg-video-nouveau-lts-vivid xserver-xorg-video-openchrome-lts-vivid
  xserver-xorg-video-r128-lts-vivid xserver-xorg-video-radeon-lts-vivid
  xserver-xorg-video-savage-lts-vivid
  xserver-xorg-video-siliconmotion-lts-vivid
  xserver-xorg-video-sisusb-lts-vivid xserver-xorg-video-tdfx-lts-vivid
  xserver-xorg-video-trident-lts-vivid xserver-xorg-video-vesa-lts-vivid
  xserver-xorg-video-vmware-lts-vivid
Suggested packages:
  fdutils linux-lts-vivid-tools xfonts-100dpi xfonts-75dpi
  gpointing-device-settings touchfreeze firmware-linux
Recommended packages:
  libegl1-mesa-drivers-lts-vivid
The following packages will be REMOVED:
  libegl1-mesa-drivers-lts-utopic libegl1-mesa-lts-utopic libgbm1-lts-utopic
  libgl1-mesa-dri-lts-utopic libgl1-mesa-glx-lts-utopic
  libglapi-mesa-lts-utopic libgles1-mesa-lts-utopic libgles2-mesa-lts-utopic
  libopenvg1-mesa-lts-utopic libwayland-egl1-mesa-lts-utopic
  libxatracker2-lts-utopic xserver-xorg-core-lts-utopic
  xserver-xorg-input-all-lts-utopic xserver-xorg-input-evdev-lts-utopic
  xserver-xorg-input-mouse-lts-utopic xserver-xorg-input-synaptics-lts-utopic
  xserver-xorg-input-vmmouse-lts-utopic xserver-xorg-input-wacom-lts-utopic
  xserver-xorg-lts-utopic xserver-xorg-video-all-lts-utopic
  xserver-xorg-video-ati-lts-utopic xserver-xorg-video-cirrus-lts-utopic
  xserver-xorg-video-fbdev-lts-utopic xserver-xorg-video-intel-lts-utopic
  xserver-xorg-video-mach64-lts-utopic xserver-xorg-video-mga-lts-utopic
  xserver-xorg-video-modesetting-lts-utopic
  xserver-xorg-video-neomagic-lts-utopic xserver-xorg-video-nouveau-lts-utopic
  xserver-xorg-video-openchrome-lts-utopic xserver-xorg-video-r128-lts-utopic
  xserver-xorg-video-radeon-lts-utopic xserver-xorg-video-savage-lts-utopic
  xserver-xorg-video-siliconmotion-lts-utopic
  xserver-xorg-video-sisusb-lts-utopic xserver-xorg-video-tdfx-lts-utopic
  xserver-xorg-video-trident-lts-utopic xserver-xorg-video-vesa-lts-utopic
  xserver-xorg-video-vmware-lts-utopic
The following NEW packages will be installed:
  libegl1-mesa-lts-vivid libgbm1-lts-vivid libgl1-mesa-dri-lts-vivid
  libgl1-mesa-glx-lts-vivid libglapi-mesa-lts-vivid libgles1-mesa-lts-vivid
  libgles2-mesa-lts-vivid libllvm3.6 libwayland-egl1-mesa-lts-vivid
  libxatracker2-lts-vivid linux-generic-lts-vivid linux-headers-3.19.0-25
  linux-headers-3.19.0-25-generic linux-headers-generic-lts-vivid
  linux-image-3.19.0-25-generic linux-image-extra-3.19.0-25-generic
  linux-image-generic-lts-vivid xserver-xorg-core-lts-vivid
  xserver-xorg-input-all-lts-vivid xserver-xorg-input-evdev-lts-vivid
  xserver-xorg-input-mouse-lts-vivid xserver-xorg-input-synaptics-lts-vivid
  xserver-xorg-input-vmmouse-lts-vivid xserver-xorg-input-wacom-lts-vivid
  xserver-xorg-lts-vivid xserver-xorg-video-all-lts-vivid
  xserver-xorg-video-ati-lts-vivid xserver-xorg-video-cirrus-lts-vivid
  xserver-xorg-video-fbdev-lts-vivid xserver-xorg-video-intel-lts-vivid
  xserver-xorg-video-mach64-lts-vivid xserver-xorg-video-mga-lts-vivid
  xserver-xorg-video-neomagic-lts-vivid xserver-xorg-video-nouveau-lts-vivid
  xserver-xorg-video-openchrome-lts-vivid xserver-xorg-video-r128-lts-vivid
  xserver-xorg-video-radeon-lts-vivid xserver-xorg-video-savage-lts-vivid
  xserver-xorg-video-siliconmotion-lts-vivid
  xserver-xorg-video-sisusb-lts-vivid xserver-xorg-video-tdfx-lts-vivid
  xserver-xorg-video-trident-lts-vivid xserver-xorg-video-vesa-lts-vivid
  xserver-xorg-video-vmware-lts-vivid
0 upgraded, 44 newly installed, 39 to remove and 0 not upgraded.
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