380113 2017-05-23 08:35:19 +0000 Plymouth KCM update-alternatives not able to set available themes 2019-08-01 15:13:56 +0000 1 1 2 Applications systemsettings kcm_plymouth 5.9.95 Other Linux RESOLVED FIXED NOR normal --- 0 leszek.lesner plasma-bugs-null bugseforuns nate notmart 0 oldest_to_newest 1677442 0 leszek.lesner 2017-05-23 08:35:19 +0000 Trying to change the plymouth boot splash screen to solar theme. Go to 'System Settings->Startup and shutdown->Boot Splash' and I select solar theme then apply. It asks for password. But when hitting ok after providing password it shows an error message: "Unable to authenticate/execute the action: 2, update-alternatives returned with error condition 2." The reason for this error is that the solar theme is not "installed" as alternative in the update-alternatives system. So using the update-alternatives --set command (line 69 of helper.cpp) will fail for it. In fact it will fail for every theme that isn't known to update-alternatives. This also means if I manually download and extract a theme to plymouths theme directory I am not able to set it The best solution would be checking with update-alternatives --list default.plymouth if it outputs the path of the plymouth theme we want to set. If its not in there that means the update-alternatives needs to install the .plymouth file first before using set. 1677452 1 leszek.lesner 2017-05-23 09:59:44 +0000 Added a review with a proposed fix: https://phabricator.kde.org/D5942 1872415 2 nate 2019-08-01 15:13:56 +0000 That patch landed years ago. Marking as Fixed.