我想尝试从 Chrome 切换回 Firefox，但有一个问题无法实现。当我用 Firefox 播放任何视频时，它的运行速度非常慢，而且质量比在 Chrome 中差。例如，当我将视频扩展到全屏时，它切换得非常慢，退出全屏模式的唯一方法是按 Esc。但在 Chrome 中一切正常。我已经录制了一段视频并进行了演示。请检查一下。我的系统是 Xubuntu 14.04，带有 fglrx 驱动程序的视频 Radeon HD 7640G。
我正在尝试使用 Ubuntu 14.10 在我的笔记本电脑上安装 MariaDB。每次我遇到错误。所以，问题是 MariaDB 需要 libmysqlclient18 版本 10.0.16 但安装了 5.xx。如果我安装 10.0.16，我会收到另一个应用程序需要 libmysqlclient18 以前版本的新错误。我已尝试执行MariaDB 安装指南页面上的步骤，但没有帮助。或者也许我做错了什么。
ant@ubuntupc:~$ sudo apt-get install mariadb-server
Reading package lists... Done
Building dependency tree
Reading state information... Done
You might want to run 'apt-get -f install' to correct these:
The following packages have unmet dependencies:
libmariadbclient18 : Depends: libmysqlclient18 (= 10.0.16+maria-1~utopic) but 5.5.41-0ubuntu0.14.10.1 is to be installed
E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution).
ant@ubuntupc:~$ sudo apt-get install libmysqlclient18=10.0.16+maria-1~utopic
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages were automatically installed and are no longer required:
aptitude-common aptitude-doc-en cabextract intltool libaio1 libcwidget3
libdbd-mysql-perl libdbi-perl libunique-3.0-0 libxml-parser-perl
linux-headers-3.16.0-23 linux-headers-3.16.0-23-generic
linux-image-3.16.0-23-generic linux-image-extra-3.16.0-23-generic
mariadb-client-10.0 mariadb-client-core-10.0 mariadb-server-10.0
mariadb-server-core-10.0
Use 'apt-get autoremove' to remove them.
The following packages will be upgraded:
libmysqlclient18
1 upgraded, 0 newly installed, 0 to remove and 38 not upgraded.
5 not fully installed or removed.
Need to get 0 B/2 948 B of archives.
After this operation, 3 478 kB disk space will be freed.
dpkg: error processing archive /var/cache/apt/archives/libmysqlclient18_10.0.16+maria-1~utopic_amd64.deb (--unpack):
libmysqlclient18:amd64 10.0.16+maria-1~utopic (Multi-Arch: no) is not co-installable with libmysqlclient18 which has multiple installed instances
Errors were encountered while processing:
/var/cache/apt/archives/libmysqlclient18_10.0.16+maria-1~utopic_amd64.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)
ant@ubuntupc:~$ sudo apt-get -f install
Reading package lists... Done
Building dependency tree
Reading state information... Done
Correcting dependencies... Done
The following packages were automatically installed and are no longer required:
aptitude-common aptitude-doc-en cabextract intltool libaio1 libcwidget3
libdbd-mysql-perl libdbi-perl libunique-3.0-0 libxml-parser-perl
linux-headers-3.16.0-23 linux-headers-3.16.0-23-generic
linux-image-3.16.0-23-generic linux-image-extra-3.16.0-23-generic
mariadb-client-10.0 mariadb-client-core-10.0 mariadb-server-10.0
mariadb-server-core-10.0
Use 'apt-get autoremove' to remove them.
The following extra packages will be installed:
libmysqlclient18
The following packages will be upgraded:
libmysqlclient18
1 upgraded, 0 newly installed, 0 to remove and 38 not upgraded.
5 not fully installed or removed.
Need to get 0 B/2 948 B of archives.
After this operation, 3 478 kB disk space will be freed.
Do you want to continue? [Д/н] y
dpkg: error processing archive /var/cache/apt/archives/libmysqlclient18_10.0.16+maria-1~utopic_amd64.deb (--unpack):
libmysqlclient18:amd64 10.0.16+maria-1~utopic (Multi-Arch: no) is not co-installable with libmysqlclient18 which has multiple installed instances
Errors were encountered while processing:
/var/cache/apt/archives/libmysqlclient18_10.0.16+maria-1~utopic_amd64.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)
ant@ubuntupc:~$