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It is not a good idea to install Nvidia drivers from .run files, downloaded from Nvidia site. This way they will not be registered properly by dkms and you will get black screen after first kernel update. Good way to install the driver is to run: sudo apt-get install nvidia-current Or go to System Settings -> Software & Updates -> Additional Drivers ...


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First run this command for a graphical environment sudo systemctl set-default graphical.target Because you have used sudo systemctl set-default multi-user.target before. Then repair the entries in /etc/default/grub This statement is completely wrong: GRUB_DEFAULT="quiet splash" Open the configuration: sudo nano /etc/default/grub and replace the ...


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Thanks to A.B. I found that the CSS settings are imported into gtk.css in the GTK theme you use. The CSS file itself is named lightdm-gtk-greeter.css and should be in /usr/share/themes/(theme)/apps/


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Today after next set of kernel updates the issue has gone. Now Ubuntu 15.04 boots normally. sserg@SSERG-U38DT:~$ inxi -F System: Host: SSERG-U38DT Kernel: 3.19.0-18-generic x86_64 (64 bit) Desktop: Unity 7.3.2 Distro: Ubuntu 15.04 vivid


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Sounds like you're missing a desktop manager to start X. LightDM is the most common these days. Easy to install: sudo apt install lightdm Then you can reboot (and it'll load up automatically) or you can start it there and then if it doesn't already do this after install: sudo service lightdm start


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This could also be because of a special combination of settings: Encrypted /home/$USER $USER in nopasswdlogin group lightdm will try to log you in, but can't access any files so you get the described symptoms. To fix this, remove $USER from the group: sudo gpasswd -d $USER nopasswdlogin


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cat /etc/lightdm/lightdm.conf.d/30-seats.conf [LightDM]<br> seats=Seat:0, Seat:1 [Seat:0] user-session=ubuntu autologin-user= [Seat:1] user-session=ubuntu autologin-user=


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To hide/invisible an administrator account in login page: Note: replace AdminAccount with the actual administrator account e.g. admin01 (Ctrl + Alt + T) login in sudoer/admin account to used this command. sudo usermod -u 999 AdminAccount


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Turns out that this was a simple matter of giving the wrong permissions to my icon set. There was nothing wrong with my theme, it just couldn't be read. Odds are, if you're modifying an existing icon theme, it has all the required icons. Permissions just need to be set as 755 for directories, and 644 for files. Lesson from this: Always check permissions!!


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Based on the bug report, reported March 21, 2015 Ubuntu 15.04 Xserver does not start or freezes with systemd + lightdm. More detail regarding the impact of this change and how to switch from systemd to upstart and back again is available on this page. To check to see if your system is using systemd vs. upstart you can test by issuing the command sudo ...


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Read Only is the state that recovery mode boots into intentionally. What you need to do is remount the root partition with read-write privileges. This will remount the drive as readable and writable. Execute this in the recovery console: mount -rw -o remount /


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Now i think there was problem in compiz after looking way around i found crash report of compiz in /var/crash just after crashing and the crash report was as in the screenshot and i found that it wasn't send because there was UnreportableReason: You have some obsolete package versions installed. Please upgrade the following packages and check if the ...


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This is a bug in Unity. Please mark yourself as affected here: https://bugs.launchpad.net/ubuntu/+source/unity/+bug/1451613


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Install Ubuntu Tweak. It still works although it hasn't been updated for a while. You can download the deb package from here: https://launchpad.net/ubuntu-tweak Start Ubuntu Tweak, go to Tweaks > Startup > Login Settings. There you should be able to "Unlock" Root privileges and select some LDM Preferences like "Draw Grid".



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