{"id":10553,"date":"2020-07-24T14:17:32","date_gmt":"2020-07-24T14:17:32","guid":{"rendered":"http:\/\/ubuntuhandbook.org\/?p=10553"},"modified":"2020-07-24T14:17:32","modified_gmt":"2020-07-24T14:17:32","slug":"change-default-display-manager-ubuntu-20-04","status":"publish","type":"post","link":"https:\/\/ubuntuhandbook.org\/index.php\/2020\/07\/change-default-display-manager-ubuntu-20-04\/","title":{"rendered":"How to Change the Default Display Manager in Ubuntu 20.04"},"content":{"rendered":"<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/ubuntuhandbook.org\/wp-content\/uploads\/2016\/03\/classic-gnome-icon.png\" alt=\"gnome shell\" width=\"245\" height=\"250\" class=\"aligncenter size-full wp-image-5741\" \/><\/p>\n<p><b>This quick tutorial shows how to change the default login screen display manager (e.g., gdm3, lightdm, kdm) in Ubuntu 20.04.<\/b><\/p>\n<p>Ubuntu 20.04 Gnome desktop uses GDM3 as the default display manager. If you installed other desktop environments in your system, then you may have different display managers.<\/p>\n<p>To change the default display manager, open <u>terminal<\/u> from system application launcher, and do following steps one by one.<\/p>\n<p><b>1.) Check the current running display manager<\/b> by running command:<\/p>\n<pre style=\"border:none;\">systemctl status display-manager.service<\/pre>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/ubuntuhandbook.org\/wp-content\/uploads\/2020\/07\/check-displaymanager.png\" alt=\"\" width=\"560\" height=\"205\" class=\"aligncenter size-full wp-image-10554\" srcset=\"https:\/\/ubuntuhandbook.org\/wp-content\/uploads\/2020\/07\/check-displaymanager.png 560w, https:\/\/ubuntuhandbook.org\/wp-content\/uploads\/2020\/07\/check-displaymanager-450x165.png 450w\" sizes=\"auto, (max-width: 560px) 100vw, 560px\" \/><\/p>\n<p>You may also run <code>cat \/etc\/X11\/default-display-manager<\/code> to get the result.<\/p>\n<p><b>2.<\/b> Run command to reconfigure the default manager:<\/p>\n<pre style=\"border:none;\">sudo dpkg-reconfigure gdm3<\/pre>\n<p><i>NOTE: replace <b>gdm3<\/b> in the command with the one you got in step 1).<\/i><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/ubuntuhandbook.org\/wp-content\/uploads\/2020\/07\/dpkg-gdm3.png\" alt=\"\" width=\"560\" height=\"94\" class=\"aligncenter size-full wp-image-10555\" srcset=\"https:\/\/ubuntuhandbook.org\/wp-content\/uploads\/2020\/07\/dpkg-gdm3.png 560w, https:\/\/ubuntuhandbook.org\/wp-content\/uploads\/2020\/07\/dpkg-gdm3-450x76.png 450w\" sizes=\"auto, (max-width: 560px) 100vw, 560px\" \/><\/p>\n<p><b>3.)<\/b> It will bring up the package configuration screen, if you have more than one display managers installed:<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/ubuntuhandbook.org\/wp-content\/uploads\/2020\/07\/reconfigure-gdm3.png\" alt=\"\" width=\"560\" height=\"342\" class=\"aligncenter size-full wp-image-10556\" srcset=\"https:\/\/ubuntuhandbook.org\/wp-content\/uploads\/2020\/07\/reconfigure-gdm3.png 560w, https:\/\/ubuntuhandbook.org\/wp-content\/uploads\/2020\/07\/reconfigure-gdm3-450x275.png 450w\" sizes=\"auto, (max-width: 560px) 100vw, 560px\" \/><\/p>\n<p><b>4.)<\/b> Hit enter in the previous screen, then press Up \/ Down arrow keys to switch the display manager and hit Enter.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/ubuntuhandbook.org\/wp-content\/uploads\/2020\/07\/change-displaymanager.png\" alt=\"\" width=\"560\" height=\"342\" class=\"aligncenter size-full wp-image-10557\" srcset=\"https:\/\/ubuntuhandbook.org\/wp-content\/uploads\/2020\/07\/change-displaymanager.png 560w, https:\/\/ubuntuhandbook.org\/wp-content\/uploads\/2020\/07\/change-displaymanager-450x275.png 450w\" sizes=\"auto, (max-width: 560px) 100vw, 560px\" \/><\/p>\n<p>The change will be applied in next boot. Enjoy!<\/p>","protected":false},"excerpt":{"rendered":"<p>This quick tutorial shows how to change the default login screen display manager (e.g., gdm3, lightdm, kdm) in Ubuntu 20.04. Ubuntu 20.04 Gnome desktop uses GDM3 as the default display manager. If you installed other desktop environments in your system, then you may have different display managers. To change the default display manager, open terminal [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9],"tags":[1966],"class_list":["post-10553","post","type-post","status-publish","format-standard","hentry","category-howtos","tag-default-display-manager"],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/ubuntuhandbook.org\/index.php\/wp-json\/wp\/v2\/posts\/10553","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ubuntuhandbook.org\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ubuntuhandbook.org\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ubuntuhandbook.org\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ubuntuhandbook.org\/index.php\/wp-json\/wp\/v2\/comments?post=10553"}],"version-history":[{"count":0,"href":"https:\/\/ubuntuhandbook.org\/index.php\/wp-json\/wp\/v2\/posts\/10553\/revisions"}],"wp:attachment":[{"href":"https:\/\/ubuntuhandbook.org\/index.php\/wp-json\/wp\/v2\/media?parent=10553"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ubuntuhandbook.org\/index.php\/wp-json\/wp\/v2\/categories?post=10553"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ubuntuhandbook.org\/index.php\/wp-json\/wp\/v2\/tags?post=10553"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}