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{{NoteTA|G1=IT}}
{{Infobox software
|name = LightDM
|title = LightDM
|logo =
|screenshot = LightDM 1.2.1 on Ubuntu 12.04.png
|screenshot size = 250px
|caption = LightDM在[[Ubuntu|Ubuntu 12.04]]作為預設的Unity登入前端
|author = Robert Ancell
|developer = Robert Ancell, David Edmundson
|released = {{Start date|2010|09|10|}}
|latest release version = 1.32.0
|latest release date = {{Release date and age|2022|07|18}}
|programming language = [[C語言|C]]
|operating system = [[Linux]]
|platform = [[Linux]]
|size = 1 [[Megabyte|MB]]
|language = 多於50種語言<ref>{{cite web |author = Czech 17 000.00 0 0 0 0 2011-05-13 12:11:15 UTC 2011-05-13 |url = https://translations.launchpad.net/lightdm |title = Translations : Light Display Manager |publisher = Translations.launchpad.net |date = 2011-05-13 |accessdate = 2013-05-29 |archive-date = 2013-05-12 |archive-url = https://web.archive.org/web/20130512115936/https://translations.launchpad.net/lightdm |dead-url = no }}</ref><ref>{{cite web |author = Czech 16 015.79 3 3 3 3 2013-05-08 06:42:26 UTC 2013-05-08 |url = https://translations.launchpad.net/lightdm-gtk-greeter |title = Translations : LightDM GTK+ Greeter |publisher = Translations.launchpad.net |date = 2013-05-08 |accessdate = 2013-05-29 |archive-date = 2014-08-20 |archive-url = https://web.archive.org/web/20140820045048/https://translations.launchpad.net/lightdm-gtk-greeter |dead-url = no }}</ref><ref>{{cite web |url = https://translations.launchpad.net/unity-greeter |title = Translations : Unity Greeter |publisher = Translations.launchpad.net |date = 2012-01-24 |accessdate = 2013-05-29 |archive-date = 2013-06-19 |archive-url = https://web.archive.org/web/20130619013226/https://translations.launchpad.net/unity-greeter |dead-url = no }}</ref>
|status = 進行中
|genre = [[X顯示管理器]]
|license = [[GNU通用公共授權條款#GPLv3|GNU GPL第三版]]<ref>{{citation |url = https://bazaar.launchpad.net/~lightdm-team/lightdm/trunk/view/head:/COPYING |title = LightDM: Contents of COPYING |publisher = launchpad.net |date = |accessdate = 2012-08-23 |deadurl = yes |archiveurl = https://archive.today/20121220014205/https://bazaar.launchpad.net/~lightdm-team/lightdm/trunk/view/head:/COPYING |archivedate = 2012-12-20 }}</ref>
|website = {{URL|https://github.com/canonical/lightdm}}
}}

'''LightDM'''的目標是創造一個輕量、快速、具擴充性以及多桌面環境的[[X顯示管理器]]<ref name="Homepage">{{citation |url = http://www.freedesktop.org/wiki/Software/LightDM |title = The Light Display Manager (LightDM) |accessdate = 17 May 2011 |archive-date = 2021-02-04 |archive-url = https://web.archive.org/web/20210204132126/https://www.freedesktop.org/wiki/Software/LightDM/ |dead-url = no }}</ref>。它使用了很多不同的被稱作Greeters的[[前端和後端|前端]]來渲染出登入畫面<ref name="digitizor">{{citation |title = Ubuntu 11.10 To Switch From GDM To LightDM |url = http://digitizor.com/2011/05/12/ubuntu-11-10-lightdm/ |date = 12 May 2011 |accessdate = 18 May 2011 |archive-date = 2015-09-10 |archive-url = https://web.archive.org/web/20150910151026/http://digitizor.com/2011/05/12/ubuntu-11-10-lightdm/ |dead-url = no }}</ref><ref>{{cite web |last=Fischer |first=Matt |url=http://www.mattfischer.com/blog/?p=5 |title=» So You Want to Write a LightDM Greeter… Matt Fischer's Blog |publisher=Mattfischer.com |date=2012-02-07 |accessdate=2013-05-29 |archive-date=2013-07-19 |archive-url=https://web.archive.org/web/20130719131630/http://www.mattfischer.com/blog/?p=5 |dead-url=no }}</ref>。

== 特性 ==
LightDM包含了以下這些特性：
* 減少外部依賴的代碼庫
* 符合PAM、ConsoleKit等標準
* 在顯示伺服器及使用者介面間有良好的定義
* 跨桌面環境（可以用任何[[部件工具箱]]編寫）
* 可在多種[[圖形使用者介面]]下使用的良好定義[[API]]
* 在適當的情況及有適合的外掛的情況下，支援所有的顯示管理器

LightDM提供了至少與[[GNOME顯示管理器]]一樣的功能，但它卻有一個更簡單的代碼庫，並且在運行時不需載入任何[[GNOME]]的[[函式庫]]<ref>{{citation |url=http://www.geek.com/articles/chips/ubuntu-adopts-lightdm-login-screens-to-get-more-exciting-20110512/ |title=Ubuntu adopts LightDM, login screens to get more exciting |publisher=Geek.com |date=12 May 2011 |accessdate=18 May 2011 |archive-date=2012-08-15 |archive-url=https://www.webcitation.org/69wjpdbKu?url=http://www.geek.com/articles/chips/ubuntu-adopts-lightdm-login-screens-to-get-more-exciting-20110512/ |dead-url=no }}</ref>。LightDM是自[[Ubuntu]]11.10釋出後，[[Ubuntu]]、[[Edubuntu]]、[[Xubuntu]]以及[[Mythbuntu]]的預設顯示管理器<ref>{{citation |url=https://wiki.ubuntu.com/OneiricOcelot/ReleaseNotes |title=Ubuntu 11.10 ReleaseNotes |publisher=Canonical |accessdate=28 May 2012 |archive-date=2011-12-23 |archive-url=https://web.archive.org/web/20111223145418/https://wiki.ubuntu.com/OneiricOcelot/ReleaseNotes |dead-url=no }}</ref><ref name="Xubuntu">{{cite web|title=Xubuntu 11.10 Release Notes|url=https://wiki.ubuntu.com/Xubuntu/ReleaseNotes/OneiricOcelot/Final/|publisher=Canonical|accessdate=17 December 2012|archive-date=2013-10-02|archive-url=https://web.archive.org/web/20131002202219/https://wiki.ubuntu.com/Xubuntu/ReleaseNotes/OneiricOcelot/Final/|dead-url=no}}</ref>，而[[Lubuntu]]則是在12.04釋出後才將LightDM作為預設顯示管理器<ref name="Lubuntu">{{citation |url=https://wiki.ubuntu.com/PrecisePangolin/ReleaseNotes/Lubuntu |title=Lubuntu 12.04 ReleaseNotes |publisher=Canonical |accessdate=14 Jun 2012 |archive-date=2012-05-14 |archive-url=https://web.archive.org/web/20120514005743/https://wiki.ubuntu.com/PrecisePangolin/ReleaseNotes/Lubuntu |dead-url=no }}</ref>，[[Kubuntu]]則是從12.10才將LightDM作為預設顯示管理器<ref name="Kubuntu default">{{cite web |url=https://mail.kde.org/pipermail/plasma-devel/2012-August/020995.html |title=[RFC] Merging LightDM into KDE Workspaces |publisher=Mail.kde.org |date= |accessdate=2013-05-29 |archive-date=2015-07-14 |archive-url=https://web.archive.org/web/20150714160847/https://mail.kde.org/pipermail/plasma-devel/2012-August/020995.html |dead-url=no }}</ref>。

=== 可用的''Greeters'' ===
{| class="wikitable"
|-
! colspan="4" | 仍在積極開發中的LightDM Greeters
|-
! 名稱 !! 主要特性 !! 版本 !! 官方網頁
|-
| [[GTK+]] Greeter || 使用[[GTK+]]寫成<ref name="GTK Greeter">{{citation |url=https://launchpad.net/lightdm-gtk-greeter |title=LightDM GTK+ Greeter in Launchpad |publisher=Launchpad.net |date= |accessdate=2015-05-21 |archive-date=2015-05-10 |archive-url=https://web.archive.org/web/20150510020259/https://launchpad.net/lightdm-gtk-greeter |dead-url=no }}</ref>，是Lubuntu<ref name="Lubuntu" />及Xubuntu的預設顯示管理器<ref name="Xubuntu"/> || 2.0.1<ref name="GTK Greeter" /> || {{URL|https://launchpad.net/lightdm-gtk-greeter|launchpad.net}}
|-
| Pantheon Greeter || 是由[[elementary (操作系统)|Elementary OS]]開發團隊為了配合Elementary OS所開發的<ref name="luna-beta-1">{{cite web |url=http://www.elementaryos.org/journal/luna-beta-1-released |title=Hello, Luna Beta 1 | elementary |publisher=Elementaryos.org |date=2012-11-14 |accessdate=2013-05-29 |archive-date=2012-11-20 |archive-url=https://web.archive.org/web/20121120032342/http://elementaryos.org/journal/luna-beta-1-released |dead-url=no }}</ref>。 || 2.0.2 || {{URL|https://launchpad.net/pantheon-greeter|launchpad.net}}
|-
| Unity Greeter || [[Ubuntu]]預設的顯示管理器<ref name="digitizor" />。 || 16.04.2<ref>{{citation |url=https://launchpad.net/unity-greeter |title=Unity Greeter |publisher=Launchpad.net |date= |accessdate=2016-03-24 |archive-date=2016-02-09 |archive-url=https://web.archive.org/web/20160209045927/https://launchpad.net/unity-greeter |dead-url=no }}</ref> || {{URL|https://launchpad.net/unity-greeter|launchpad.net}}
|-
! colspan="4" | 停止開發的LightDM Greeters
|-
! 名稱 !! 主要特性 !! 版本 !! 官方網頁
|-
|Crowd Greeter || 一個使用[[OpenGL]]寫成的範例<ref>{{cite web|author=~lightdm-team/crowd-greeter/trunk |url=https://bazaar.launchpad.net/~lightdm-team/crowd-greeter/trunk/view/head:/NEWS |title=~lightdm-team/crowd-greeter/trunk : contents of NEWS at revision 33 |publisher=Bazaar.launchpad.net |date=2011-07-27 |accessdate=2013-05-29}}</ref><ref>{{cite web |url=https://www.youtube.com/watch?v=f8nm4NpaVXE |title=LightDM Crowd Greeter |publisher=YouTube |date=2011-09-07 |accessdate=2013-05-29 |archive-date=2020-03-12 |archive-url=https://web.archive.org/web/20200312101045/https://www.youtube.com/watch?v=f8nm4NpaVXE |dead-url=no }}</ref>。 || 0.0.2<ref>{{cite web |url=https://launchpad.net/~lightdm-team/+archive/crowd-greeter |title=Crowd Greeter : "LightDM Development Team" team |publisher=Launchpad.net |date=2011-09-08 |accessdate=2013-05-29 |archive-date=2013-10-03 |archive-url=https://web.archive.org/web/20131003223705/https://launchpad.net/~lightdm-team/+archive/crowd-greeter |dead-url=no }}</ref> || {{URL|https://launchpad.net/crowd-greeter|launchpad.net}}
|-
| GTK+ Builder Greeter || 一個使用[[GTK+]]寫成的，基於GtkBuilder的[[LXDE]]組件，有可以使用[[Glade]]編輯的[[所見即所得]]主題。|| 0.2.0<ref name="GTK Builder Greeter">{{cite web|title=Status of LXDE Components|url=http://wiki.lxde.org/en/Status_of_LXDE_Components|publisher=LXDE Team|accessdate=17 December 2012|archive-date=2019-10-17|archive-url=https://web.archive.org/web/20191017180708/https://wiki.lxde.org/en/Status_of_LXDE_Components|dead-url=no}}</ref> || {{URL|http://lxde.git.sourceforge.net/git/gitweb.cgi?p=lxde/ldm-gtk-builder-greeter;a=summary|sourceforge.net}}
|-
|Qt Greeter || 使用[[Qt]]寫成。 || — || {{URL|https://launchpad.net/lightdm-qt-greeter|launchpad.net}}
|-
| WebKit Greeter || 易於更換完整的主題<ref name="digitizor" />。 || 0.1.2<ref>{{citation |url=https://launchpad.net/lightdm-webkit-greeter |title=LightDM Webkit Greeter |publisher=Launchpad.net |date= |accessdate=2012-08-23 |archive-date=2013-03-10 |archive-url=https://web.archive.org/web/20130310052554/https://launchpad.net/lightdm-webkit-greeter |dead-url=no }}</ref> || {{URL|https://launchpad.net/lightdm-webkit-greeter|launchpad.net}}
|-
| Razor Greeter || 輕量級（使用純[[Qt]]寫成），為[[Razor-qt]]所使用<ref>{{citation |author=Razor-qt |url=https://github.com/Razor-qt/razor-qt/tree/master/razorqt-lightdm-greeter |title=razorqt-lightdm-greeter |publisher=Github.com |date= |accessdate=2012-08-23 |archive-date=2016-04-11 |archive-url=https://web.archive.org/web/20160411145901/https://github.com/Razor-qt/razor-qt/tree/master/razorqt-lightdm-greeter |dead-url=no }}</ref>。 || 0.5.2 || {{URL|http://razor-qt.org}}
|-
| KDE Greeter || 與[[KDE Plasma Workspaces|KDE Plasma 工作空間]]整合<ref name="Plasma">{{citation |url=http://www.sharpley.org.uk/blog/lightdm-0_2 |title=LightDM-KDE 0.2.0 |author=David Edmundson |publisher=Sharpley.org.uk |date=2012-07-21 |accessdate=2012-08-23 |deadurl=yes |archiveurl=https://archive.today/20121224054348/http://www.sharpley.org.uk/blog/lightdm-0_2 |archivedate=2012-12-24 }}</ref><ref>{{cite web |url=http://static.davidedmundson.co.uk/lightdm_design_rationale.html |title=Rationales |publisher=Static.davidedmundson.co.uk |date= |accessdate=2013-05-29 |archive-date=2018-05-25 |archive-url=https://web.archive.org/web/20180525134540/http://static.davidedmundson.co.uk/lightdm_design_rationale.html |dead-url=no }}</ref>，是Kubuntu在更換為SDDM前的預設顯示管理器<ref name="Kubuntu default" />。 || 0.3.2.1<ref>{{cite web|title=LightDM-KDE File Archive|url=http://download.kde.org/unstable/lightdm-kde/src/|publisher=[[KDE]]|accessdate=6 June 2013|archive-date=2017-10-27|archive-url=https://web.archive.org/web/20171027181531/https://download.kde.org/unstable/lightdm-kde/src/|dead-url=no}}</ref> || {{URL|http://projects.kde.org/lightdm|projects.kde.org}}
|}

== 参考文献 ==
{{Reflist|2}}

== 外部連結 ==
{{Commons category}}
* {{Official website|http://www.freedesktop.org/wiki/Software/LightDM}}
* [https://launchpad.net/lightdm LightDM開發頁] {{Wayback|url=https://launchpad.net/lightdm |date=20210126080840 }} 在[[Launchpad (網站)|Launchpad]]上

== 參見 ==
* [[GNOME顯示管理器]] (GDM)
* [[KDE 顯示管理器]] (KDM)
* [[简单显示管理器|SDDM 顯示管理器]] (SDDM)
* [[X顯示管理器#一些實例|其他顯示管理器]]

{{-}}
{{Ubuntu}}
{{Display Managers}}

[[Category:Ubuntu]]
[[Category:X显示管理器]]

LightDM - 版本历史

imported>InternetArchiveBot：​Reformat 2 URLs (Wayback Medic 2.5)) #IABot (v2.0.9.5) (GreenC bot

imported>InternetArchiveBot：Reformat 2 URLs (Wayback Medic 2.5)) #IABot (v2.0.9.5) (GreenC bot