我刚刚在我的 2011 HP Pavilion p7-1047c 台式电脑上安装了二手 HP AMD Radeon™ HD 7570 1GB。
我在跑：
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 18.04.2 LTS
Release: 18.04
Codename: bionic
所以我在这里下载了驱动程序 ->https://www.amd.com/en/support/graphics/amd-radeon-hd/amd-radeon-hd-7000-series/amd-radeon-hd-7570
当我尝试安装它们时，我遇到了一个问题，Package fglrx-core is not installed.因此我尝试手动安装它
sudo apt-get install fglrx-core
Reading package lists... Done
Building dependency tree
Reading state information... Done
Package fglrx-core is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source
E: Package 'fglrx-core' has no installation candidate
我进行了一些谷歌搜索，并启用了所有存储库
cat /etc/apt/sources.list
# deb cdrom:[Ubuntu 18.04.2 LTS _Bionic Beaver_ - Release amd64 (20190210)]/ bionic main restricted
# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
# newer versions of the distribution.
deb http://archive.ubuntu.com/ubuntu bionic main restricted
# deb-src http://ca.archive.ubuntu.com/ubuntu/ bionic main restricted
## Major bug fix updates produced after the final release of the
## distribution.
deb http://archive.ubuntu.com/ubuntu bionic-updates main restricted
deb-src http://ca.archive.ubuntu.com/ubuntu/ bionic-updates main restricted
## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team. Also, please note that software in universe WILL NOT receive any
## review or updates from the Ubuntu security team.
deb http://archive.ubuntu.com/ubuntu bionic universe
# deb-src http://ca.archive.ubuntu.com/ubuntu/ bionic universe
deb http://archive.ubuntu.com/ubuntu bionic-updates universe
# deb-src http://ca.archive.ubuntu.com/ubuntu/ bionic-updates universe
## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team, and may not be under a free licence. Please satisfy yourself as to
## your rights to use the software. Also, please note that software in
## multiverse WILL NOT receive any review or updates from the Ubuntu
## security team.
deb http://archive.ubuntu.com/ubuntu bionic multiverse
# deb-src http://ca.archive.ubuntu.com/ubuntu/ bionic multiverse
deb http://archive.ubuntu.com/ubuntu bionic-updates multiverse
# deb-src http://ca.archive.ubuntu.com/ubuntu/ bionic-updates multiverse
## N.B. software from this repository may not have been tested as
## extensively as that contained in the main release, although it includes
## newer versions of some applications which may provide useful features.
## Also, please note that software in backports WILL NOT receive any review
## or updates from the Ubuntu security team.
deb-src http://ca.archive.ubuntu.com/ubuntu/ bionic-backports main restricted universe multiverse
## Uncomment the following two lines to add software from Canonical's
## 'partner' repository.
## This software is not part of Ubuntu, but is offered by Canonical and the
## respective vendors as a service to Ubuntu users.
deb http://archive.canonical.com/ubuntu bionic partner
deb-src http://archive.canonical.com/ubuntu bionic partner
deb http://archive.ubuntu.com/ubuntu bionic-security main restricted
deb-src http://security.ubuntu.com/ubuntu bionic-security main restricted
deb http://archive.ubuntu.com/ubuntu bionic-security universe
# deb-src http://security.ubuntu.com/ubuntu bionic-security universe
deb http://archive.ubuntu.com/ubuntu bionic-security multiverse
deb http://archive.ubuntu.com/ubuntu bionic-backports main universe restricted multiverse
# deb-src http://security.ubuntu.com/ubuntu bionic-security multiverse
还是没有运气：
sudo apt-get install fglrx-core
Reading package lists... Done
Building dependency tree
Reading state information... Done
Package fglrx-core is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source
E: Package 'fglrx-core' has no installation candidate
不确定接下来该怎么做？还有一件事情要注意，一旦我物理安装了新的 Radeon 卡，显示屏就不会加载任何内容，只是一个黑屏。我必须物理移除卡才能尝试上述步骤。我是否需要物理安装卡才能安装驱动程序？