Thiago Garcia's questions

I have installed Ubuntu 18.04 but found gnome too heavy for my old hardware.

So I installed Xubuntu-desktop:

sudo apt-get install xubuntu-desktop synaptic
sudo apt-get remove gdm3
sudo dpkg-reconfigure lightdm
sudo apt-get remove nautilus nautilus-* gnome-power-manager gnome-screensaver gnome-termina* gnome-pane* gnome-applet* gnome-bluetooth gnome-desktop* gnome-sessio* gnome-user* gnome-shell-common zeitgeist-core libzeitgeist* gnome-control-center gnome-screenshot && sudo apt-get autoremove

It worked beautifully, but now, sometimes xscreensaver locks my screen, sometimes lightlocker does.

I have them both installed, apparently:

$ sudo dpkg -l | grep locker
rc  gnome-screensaver                                           3.6.1-8ubuntu3                                     amd64        GNOME screen saver and locker
ii  light-locker                                                1.8.0-1ubuntu1                                     amd64        simple screen locker for lightDM display manager
ii  light-locker-settings                                       1.5.0-0ubuntu2                                     all          simple configuration tool for light-locker
$ sudo dpkg -l | grep xscreen
ii  xscreensaver                                                5.36-1ubuntu1                                      amd64        Screensaver daemon and frontend for X11
ii  xscreensaver-data                                           5.36-1ubuntu1                                      amd64        Screen saver modules for screensaver frontends
$ 

This is my production workstation and I'm afraid of messing it.

Having them working at the same time presents no huge problem for me, but it looks inconsistent.

I have a "Lightlocker settings" icon on my "Settings" app, but it doesn't work. So I can only configure sleep timeouts for xscreensaver. Would it be safe to remove xscreensaver (which is uglier)? And is there a way to make "Lightlicker settings" actually work and allow me to configure its timeouts? Or should I keep xscreensaver and remove lightlocker?

Thanks!

I upgraded from Ubuntu 17.10 to 18.04 and everything was fine for about 2 moths after the upgrade.

Now, my system boots to a black screen (the monitor backlight keeps on), and I can only reach the login screen after about 5 minutes.

Curiously, if I keep pressing the key "E" repeatedly during boot, it boots normally and quickly.

I've removed "quiet splash" from /etc/default/boot and sudp update-grub2, but I don't see any errors among those commands. It quickly goes to a full black screen.

I've tried sudo apt-get install lightdm sudo apt-get install xfce sudo dpkg-reconfigure gdm3 sudo dpkg-reconfigure lightdm

(not in that specific order... those are just the commands i've already tried).

I don't use nvidia video card.

The output from dmesg | less > dmesg.txt

can be downloaded from my google drive, the link below, if the forum allows: https://drive.google.com/open?id=1aj9n4ovguhZ4ewJCbQ_FR9jRJEjd8t18

This is my workstation and I can't format it.

I would appreciate any help.

Thank you! Thiago Garcia.