0
votes
1answer
1k views

Make sure X server isn't already running? [closed]

Suddenly out of the blue I was able to start the X server but with many warnings on CentOS and then I tried to make sure it was shut down by going into /usr/bin and gdm stop but there is an error log ...
1
vote
0answers
196 views

What's wrong with my Xorg's config?

I'm using gnome under Arch Linux in my laptop with a 1920*1080 monitor on the left of it, I set the monitor as my primary display in GNOME and everything works fine after I log in. However, GDM ...
2
votes
3answers
1k views

How does GDM authenticate to the X Server?

Given that you usually have to authenticate to the X Server by way of a "magic cookie" stored in the .xauthority file in the user's home directory: How does GDM (like most login processes, running as ...
1
vote
1answer
363 views

FC16: can't log in via LightDM or GDM (but 'startx' works fine)

I'm running Fedora Core 16 (with all patches applied as of 11 Feb 2013, AFAICT) on a dual-monitor Lenovo workstation, and can't seem to access my desktop via a graphical login manager. My system ...
3
votes
0answers
934 views

Using gdm to manage xdmcp authentication over VNC

I've followed a few guides in order to enable XDMCP over VNC, however the end result is an ugly, if functional, default X login screen. It is not utilizing gdm for the authentication process, and I ...
6
votes
1answer
1k views

Dual monitors on dual video cards on Ubuntu

I have been trying this to no avail. I am new to Linux, so a step by step explanation would be greatly appreciated. I have two NVIDIA GeForce 8600 GT video cards. I want a monitor to run on each card, ...