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在盖子行为上切换密码/指纹身份验证

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在盖子行为上切换密码/指纹身份验证

我将指纹身份验证设置为登录和 sudo 命令的默认值。如果失败 3 次或 10 秒内没有检测到指纹，则需要密码验证。当盖子关闭（外部显示器）时，指纹传感器被阻挡（物理上），我不想每次在询问密码之前都必须等待 10 秒。有没有办法根据盖子状态来实现身份验证类型的更改。

现在使用 Ubuntu 20.04 / Gnome 指纹传感器：138a:0097 有效性传感器 (Thinkpad T470)

[更新]

santiago@thinkpad-t470 $ cat  /etc/pam.d/common-auth 
#
# /etc/pam.d/common-auth - authentication settings common to all services
#
# This file is included from other service-specific PAM config files,
# and should contain a list of the authentication modules that define
# the central authentication scheme for use on the system
# (e.g., /etc/shadow, LDAP, Kerberos, etc.).  The default is to use the
# traditional Unix authentication mechanisms.
#
# As of pam 1.0.1-6, this file is managed by pam-auth-update by default.
# To take advantage of this, it is recommended that you configure any
# local modules either before or after the default block, and use
# pam-auth-update to manage selection of other modules.  See
# pam-auth-update(8) for details.

# here are the per-package modules (the "Primary" block) auth   [success=2 default=ignore]  pam_fprintd.so max_tries=1 timeout=10
# debug auth    [success=1 default=ignore]  pam_unix.so nullok try_first_pass
# here's the fallback if no module succeeds auth    requisite           pam_deny.so
# prime the stack with a positive return value if there isn't one already;
# this avoids us returning an error just because nothing sets a success code
# since the modules above will each just jump around auth   required            pam_permit.so
# and here are more per-package modules (the "Additional" block) auth   optional            pam_cap.so 
# end of pam-auth-update config

答案1

我不使用 Ubuntu，但您应该可以通过更改 .txt 文件中的超时值来做到这一点/etc/pam.d/common-auth。

试试这个（具有升级的权限）：

echo "auth  [success=2 default=ignore]  pam_fprintd.so max_tries=1 timeout=3" >> /etc/pam.d/common-auth

计时器现在设置为三秒。当然，您可以将该值更改为您想要的任何值。

如果由于某种原因它不起作用，请使用以下内容编辑文件：

    auth    [success=2 default=ignore]  pam_fprintd.so max_tries=1 timeout=3
    auth    [success=1 default=ignore]  pam_unix.so nullok_secure try_first_pass
    auth    requisite           pam_deny.so
    auth    required            pam_permit.so

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