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Old 9th August 2017, 10:35 PM
deuemre Offline
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GUI login problem - GNOME lightdm

Hi all,

I am new to gnu-linux environment so i would be grateful if you guys would help me

I use GNOME desktop (Fedora 25 workstation). Recently i had to change my desktop manager from gdm to lightdm with following commands : sudo dnf install lightdm lightdm-gtk, sudo systemctl disable gdm.service, sudo systemctl enable lightdm.service

After reboot, system hangs after login to gnome shell. i can see my gnome desktop(only wallpaper appears), mouse is displayed and i am able to move the mouse.But i can not click on anything and ctrl alt f() doesn't work.

However before gui login, ctrl alt f() works and If i use terminal login then gui login everything works fine but i would like to login with 1 try while using gui

Best regards,

-Emre

Last edited by deuemre; 10th August 2017 at 09:58 AM. Reason: typo
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  #2  
Old 10th August 2017, 05:56 PM
SteveGYBE Offline
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Location: Lytham St Annes, Lancashire, UK
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Re: GUI login problem - GNOME lightdm

What display manager is Systemd trying to start by default at bootup? Mine is configured as follows
Code:
ls -l /etc/systemd/system/display-manager.service 
lrwxrwxrwx. 1 root root 39 Jul 11 18:03 /etc/systemd/system/display-manager.service -> /usr/lib/systemd/system/lightdm.service
If your link still points to gdm.service, Systemd will be trying to start GDM as well as LightDM on boot.

If this is the case, the easiest way to fix this is to manually replace the link (as root user), pointing it to the lightdm.service file. (Don't type the leading '#' - this just represents the root user command prompt.)
Code:
# rm -f /etc/systemd/system/display-manager.service
# ln -s /usr/lib/systemd/system/lightdm.service /etc/systemd/system/display-manager.service
# ls -l /etc/systemd/system/display-manager.service 
lrwxrwxrwx. 1 root root 39 Aug 10 17:48 /etc/systemd/system/display-manager.service -> /usr/lib/systemd/system/lightdm.service
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  #3  
Old 10th August 2017, 10:08 PM
deuemre Offline
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Re: GUI login problem - GNOME lightdm

Hi Steve,

I have got the same configuration

Code:
/etc/systemd/system/display-manager.service -> /usr/lib/systemd/system/lightdm.service
I guess this is not the case.
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  #4  
Old 12th August 2017, 10:54 AM
deuemre Offline
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Join Date: Aug 2017
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Posts: 7
windows_98_nt_2000chrome
Re: GUI login problem - GNOME lightdm

Hey all,

Apparently nouveau causes the problem (i use nvidia gtx 960m).

I added
Code:
nouveau.modeset=0
as a kernel parameter and everything works fine now.

Best regards,

-Emre
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