我正在使用双显示器，其中之一与
xrandr --output HDMI-1 --rotate left
我在两台显示器上的 Google Chrome（从Chrome 的 PPA安装，而不是 Chromium）上看到屏幕撕裂，尽管在旋转的显示器上更明显。我似乎没有在其他程序中看到屏幕撕裂，例如 gnome-terminal。
我的 GPU 是
$ inxi -G
Graphics: Device-1: Intel UHD Graphics 630 driver: i915 v: kernel
Display: x11 server: X.Org 1.20.4 driver: i915 resolution: 1920x1080~60Hz, 1920x1080~60Hz
OpenGL: renderer: Mesa DRI Intel UHD Graphics 630 (Coffeelake 3x8 GT2) v: 4.5 Mesa 19.0.8
我尝试添加
Section "Device"
Identifier "Intel Graphics"
Driver "intel"
Option "TripleBuffer" "true"
Option "TearFree" "true"
Option "DRI" "false"
EndSection
要/etc/X11/xorg.conf.d/20-intel-graphics.conf按照这一问题，但问题是这个命令让我的双显示器作为一个监视器（相同的图片显示了两个监视器）。我尝试删除TripleBuffer …
我通过运行其安装脚本安装了一些软件
sudo ./install.sh
安装后，我的 Ubuntu 笔记本电脑上的所有帐户都可以通过简单地发出命令获得 root 访问权限sudo -s，即使是标准（非管理员）帐户。发出命令时也没有密码提示sudo -s。
我的/etc/sudoers看起来像这样：
Defaults env_reset
Defaults secure_path="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
# Host alias specification
# User alias specification
# Cmnd alias specification
# User privilege specification
root ALL=(ALL:ALL) ALL
# Members of the admin group may gain root privileges
%admin ALL=(ALL) ALL
# Allow members of group sudo to execute any command
%sudo ALL=(ALL:ALL) ALL
# See sudoers(5) for more information on "#include" directives:
#includedir /etc/sudoers.d
ALL ALL=(ALL) NOPASSWD:ALL
如何在 Ubuntu上安装Google Roboto 字体的常规无衬线版本（不是等宽版本）？
有一个关于 Roboto Mono的问题，但我的问题是关于 Roboto，而不是等宽版本。
我做到了do-release-upgrade -d并得到了这个回溯。早些时候，我做了一些尝试用upgrade-alternatives指向python来python3，指着python3到python3.8，但我sudo update-alternatives --remove-all python并sudo apt install --reinstall编着他们两个。
$ sudo do-release-upgrade -d
Checking for a new Ubuntu release
Get:1 Upgrade tool signature [1,554 B]
Get:2 Upgrade tool [1,319 kB]
Fetched 1,320 kB in 0s (0 B/s)
authenticate 'eoan.tar.gz' against 'eoan.tar.gz.gpg'
extracting 'eoan.tar.gz'
Reading cache
Checking package manager
Reading package lists... Done
Building dependency tree
Reading state information... Done
Hit http://ca.archive.ubuntu.com/ubuntu disco InRelease
Hit http://ca.archive.ubuntu.com/ubuntu …我将 Python 2.7.15+ 符号python链接到python3. 当我尝试将 Ubuntu 升级到 19.04 时
sudo do-release-upgrade
它返回以下错误：
Traceback (most recent call last):
File "/tmp/ubuntu-release-upgrader-k7w2kx7r/disco", line 8, in <module>
sys.exit(main())
File "/usr/lib/python3/dist-packages/DistUpgrade/DistUpgradeMain.py", line 238, in main
if app.run():
File "/usr/lib/python3/dist-packages/DistUpgrade/DistUpgradeController.py", line 2085, in run
return self.fullUpgrade()
File "/usr/lib/python3/dist-packages/DistUpgrade/DistUpgradeController.py", line 1906, in fullUpgrade
if not self.askLivepatch():
File "/usr/lib/python3/dist-packages/DistUpgrade/DistUpgradeController.py", line 1175, in askLivepatch
version = next((r.version for r in di.get_all("object") if r.series == self.toDist), self.toDist)
AttributeError: 'UbuntuDistroInfo' object has no attribute 'get_all'
Error in …为什么 Ubuntu 重命名这个包？Debian 的名称不那么“企业就绪”。