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Old 11-22-2015, 12:53 PM   #1
JZL240I-U
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GUI login for root with sddm on openSUSE Leap42.1


Yes, I know. Yesyes. I don't need that to work with it, I need it to change the font settings.

Funny as it sounds, some programs (YAST2, Firefox ...) use root's settings for font size etc. which is a major PITA for displays with the current resolutions and number of pixels per inch.

What I want to do, is just log in to Plasma / KDE, fire up system settings, change all font sizes to 16 pt and log out again. Anyone here who knows how to outsmart sddm (login manager of openSUSE et al.)?
 
Old 11-22-2015, 01:16 PM   #2
TobiSGD
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Code:
su -c systemsettings5
or
Code:
sudo systemsettings5
depending on how your system is set up.
Any changes made this way will be saved to the root account. No need to log in as root to the GUI.
 
Old 11-22-2015, 01:22 PM   #3
JZL240I-U
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Okay:

Code:
me@PC:~> sudo systemsettings5
root's password:
QXcbConnection: Could not connect to display 
me@PC:~> su -c systemsettings5
Passwort: 
"Session bus not found\nTo circumvent this problem try the following command (with Linux and bash)\nexport $(dbus-launch)"
me@PC:~> export $(dbus-launch)
me@PC:~> su -c systemsettings5
Passwort: 
"Session bus not found\nTo circumvent this problem try the following command (with Linux and bash)\nexport $(dbus-launch)"
me@PC:~>
Yes. Any more ideas?
 
Old 11-22-2015, 03:33 PM   #4
JZL240I-U
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"kdesu systemsettings5" works. But only for YAST2, Firefox still has only its small fonts.

Do you know how to graphically log in as root via sddm?
 
Old 11-22-2015, 03:41 PM   #5
TobiSGD
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Try this: http://blog.libero.it/Laoblog2/13228972.html
 
Old 11-22-2015, 04:10 PM   #6
JZL240I-U
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Just found it myself (works) . Thank you for posting it and good night.
 
Old 11-25-2015, 01:52 PM   #7
JZL240I-U
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More information: Since the system keeps system-users in the range between 0 and 1000, one gets several "system-users" as possible login personae(?).

Anyhow, there is that keyword to suppress them: open /etc/sddm.conf go to the [users] section add or append there to "HideUsers=" said system users.

In openSUSE it is quite simple, open YAST / Users and groups / Filter / system users. It will display a list of those services with their description and their real name. Add the latter to the list and all clutter is gone.
 
Old 01-02-2016, 04:20 PM   #8
JZL240I-U
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In the newest SuSE there is no need for all that hassle, just expand the range of user-IDs to 0 - 2^16-1 and all is well.
 
  


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