ubuntu 20.04 启用 指纹登录
<p></p><div class="toc"><div class="toc-container-header">目录</div><ul><li>一、介绍</li><li>二、更新指纹识别器驱动</li><li>三、添加指纹</li><li>参考资料及附录</li></ul></div><p></p><h2 id="一介绍">一、介绍</h2>
<p>为了开发的时候更顺滑、问题更少，把 ThinkPad P53 装上了Ubuntu 20.04 TLS，指望用上几年。</p>
<p>换成 Ubuntu 以后，在设置里面发现支持指纹登陆，但是直接使用会报错，因为指纹器无法识别。</p>
<h2 id="二更新指纹识别器驱动">二、更新指纹识别器驱动</h2>
<p>在 ubuntu 20.04 中，一些硬件的固件推荐使用 fwupd 来更新，这个命令默认已经安装了。</p>
<ul>
<li>
<p>1、更新系统</p>
<pre><code class="language-bash">$ sudo apt update
$ sudo apt upgrade -y
</code></pre>
<p>这么做是为了更新 fwupd，顺便更新系统中的各个软件。</p>
</li>
<li>
<p>2、显示 fwupd 检测到的所有设备：</p>
<pre><code class="language-bash">$ fwupdmgr get-devices
</code></pre>
<p>输出：</p>
<pre><code class="language-bash">20QQA01JCD
│
├─Thunderbolt Controller:
│ Device ID: 5c186bd735e96445c0730ae49e424b1035e1322b
│ Summary: Unmatched performance for high-speed I/O
│ Current version: 59.00
│ Vendor: Lenovo (TBT:0x0109)
│ GUIDs: d358cf61-abca-5232-bfde-8a92e1a5b100
│ 64e51565-c48d-55e1-b59f-ca1afff199f4
│ Device Flags: • Internal device
│ • Updatable
│ • Requires AC power
│ • Device stages updates
│
├─Prometheus:
│ │ Device ID: d432baa2162a32c1554ef24bd8281953b9d07c11
│ │ Summary: Fingerprint reader
│ │ Current version: 10.01.3121519
│ │ Vendor: Synaptics (USB:0x06CB)
│ │ Install Duration: 2 seconds
│ │ GUIDs: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx
│ │ xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx
│ │ Device Flags: • Updatable
│ │ • Supported on remote server
│ │ • Cryptographic hash verification is available
│ │
</code></pre>
<p>其中 <strong>Summary: Fingerprint reader</strong> 就是指纹识别器。 Device Flags 中的 <em>Updatable</em> 说明有可用的升级。</p>
</li>
<li>
<p>3、列出系统上任何设备可用的更新：</p>
<pre><code class="language-bash">$ fwupdmgr get-updates
</code></pre>
<p>输出：</p>
<pre><code class="language-bash">• Thunderbolt Controller has no available firmware updates
• Prometheus IOTA Config has the latest available firmware version
• SAMSUNG MZVLB1T0HBLR-000L7 has no available firmware updates
• System Firmware has the latest available firmware version
• UEFI Device Firmware has no available firmware updates
• UEFI Device Firmware has the latest available firmware version
• UEFI Device Firmware has no available firmware updates
20QQA01JCD
│
└─Prometheus:
│ Device ID: d432baa2162a32c1554ef24bd8281953b9d07c11
│ Summary: Fingerprint reader
│ Current version: 10.01.3121519
│ Vendor: Synaptics (USB:0x06CB)
│ Install Duration: 2 seconds
│ GUIDs: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx
│ xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx
│ Device Flags: • Updatable
│ • Supported on remote server
│ • Cryptographic hash verification is available
│
└─Prometheus Fingerprint Reader Device Update:
New version: 10.01.3158804
Remote ID: lvfs
Summary: Firmware for the Synaptics Prometheus Fingerprint Reader device
License: Proprietary
Size: 400.3 kB
Vendor: Synaptics Inc.
Duration: 2 seconds
Flags: is-upgrade
Description: New features and enhancements:
• Support Linux system
</code></pre>
</li>
<li>
<p>4、安装更新：</p>
<pre><code class="language-bash">$ fwupdmgr update
</code></pre>
</li>
</ul>
<h2 id="三添加指纹">三、添加指纹</h2>
<p>更新指纹识别器驱动以后，再次打开设置，此时已经可以正常添加指纹了。</p>
<p><img src="https://dwg3.oss-cn-shanghai.aliyuncs.com/%E5%B0%8F%E4%B9%A6%E5%8C%A0/1595386241704.png"></p>
<p><img src="https://dwg3.oss-cn-shanghai.aliyuncs.com/%E5%B0%8F%E4%B9%A6%E5%8C%A0/1595386261031.png"></p>
<p><img src="https://dwg3.oss-cn-shanghai.aliyuncs.com/%E5%B0%8F%E4%B9%A6%E5%8C%A0/1595386280379.png"></p>
<p><img src="https://dwg3.oss-cn-shanghai.aliyuncs.com/%E5%B0%8F%E4%B9%A6%E5%8C%A0/1595386320855.png"></p>
<h2 id="参考资料及附录">参考资料及附录</h2>
<ul>
<li>fwupd (简体中文) 2020-07-04</li>
</ul>
<hr>
<p>本文由 <em>qingchuwudi</em> 译制或原创，除非另有声明，在不与原著版权冲突的前提下，本作品采用署名-非商业性使用-相同方式共享 4.0 国际 (CC BY-NC-SA 4.0) <img src="https://i.creativecommons.org/l/by-nc-sa/3.0/cn/88x31.png"> 进行许可。</p><br><br>
来源：https://www.cnblogs.com/qingchuwudi/p/13359417.html
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