尝试安装 flatpak Chromium，无济于事：
5. [?] org.chromium.Chromium stable i flathub < 102.8 MB
Error: org.chromium.Chromium needs a later flatpak version
error: Failed to install org.chromium.Chromium: app/org.chromium.Chromium/x86_64/stable needs a later flatpak version (1.8.2)
Flatpak 1.8.2 从 Groovy 开始可用：
$ rmadison flatpak
flatpak | 0.11.3-3 | bionic/universe | source, amd64, arm64, armhf, i386, ppc64el, s390x
flatpak | 1.0.8-0ubuntu0.18.04.1 | bionic-security/universe | source, amd64, arm64, armhf, i386, ppc64el, s390x
flatpak | 1.0.9-0ubuntu0.1 | bionic-updates/universe | source, amd64, arm64, armhf, i386, ppc64el, s390x
flatpak | …经过几周的实验，libinput我相信它的许多与鼠标相关的高级功能尚未（尚未？）实现。对我来说最重要的是，您不能用它阻挡鼠标滚轮，也不能用中键在系统范围内模拟鼠标滚轮。我的问题有两个：
libinput将我的 Ubuntu 从 切换到是否有意义evdev？从长远来看，我会失去任何重要的东西吗？apt列出了这两种产品的数十个包装，有些有标签hwe，有些没有。我应该删除什么以及应该安装什么？它似乎只打印版本：
$ apt list --upgradable
Listing... Done
dpkg/bionic-updates 1.19.0.5ubuntu2.3 amd64 [upgradable from: 1.19.0.5ubuntu2.2]
file-roller/bionic-security 3.28.0-1ubuntu1.1 amd64 [upgradable from: 3.28.0-1ubuntu1]
libdpkg-perl/bionic-updates,bionic-updates 1.19.0.5ubuntu2.3 all [upgradable from: 1.19.0.5ubuntu2.2]
尝试使用“ 1.19.0.5ubuntu2.3”或仅使用“ ubuntu”，但未如预期：
$ apt show 1.19.0.5ubuntu2.3
N: Unable to locate package 1.19.0.5ubuntu2.3
N: Couldn't find any package by glob '1.19.0.5ubuntu2.3'
N: Couldn't find any package by regex '1.19.0.5ubuntu2.3'
N: Unable to locate package 1.19.0.5ubuntu2.3
N: Couldn't find any package by glob '1.19.0.5ubuntu2.3'
N: Couldn't find any package by regex '1.19.0.5ubuntu2.3'
E: No …