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3
votes
0answers
123 views

Trouble setting 4 monitors with 2 Ndivia GPUs

I am having troubles setting up Quad monitors. I had 2 identical GPUs (geforce gtx 750 Ti) and 4 identical monitors. After installing Ubuntu 14.04, nvidia driver(NVIDIA-Linux-x86_64-346.72.run) ...
0
votes
1answer
8k views

Restore Xorg core and config files ubuntu 14.04

This question is a follow up on this one. I have recently upgraded from Ubuntu 12.04 to 14.04 and xserver broke during the process. I have tried reinstalling from the command line running the ...
52
votes
9answers
473k views

Ubuntu 14.04 install nVidia driver

I recently installed 14.04. But now I need a new driver for my nVidia GeForce GT 630. The former driver was rejected as not compatible with the 64-bit. I found that other driver and when I wanted to ...
1
vote
2answers
230 views

Xserver broken and cannot restore

I was installing ROS in Ubuntu 14.04.2 64bits while I installed these packages sudo apt-get install xserver-xorg-dev-lts-utopic mesa-common-dev-lts-utopic libxatracker-dev-lts-utopic libopenvg1-mesa-...
0
votes
6answers
13k views

KVM switch and screen resolution problem

I use 12.04. Till today I use it with an Acer trravelmate4070 and an LG screen in order to expand my desktop. Works great. Till today that I decided to connect my LG screen to a KVM switch in order ...
0
votes
1answer
46 views

How to run a Java awt Hedless program in a server environment?

I'm running a java program that is already able to work from command line, but only if a x server is up and running. Actually on my ubuntu 16.04 x64 VPS I got this java exception Caused by: java....
3
votes
1answer
60 views

Run multiple GUIs at the same time

I know that Ubuntu has multiple virtual consoles run by Getty which you can switch between using CTRL + ALT + F1-F8 I also know that X server runs on the F7 instance and X server runs a GUI like ...
0
votes
1answer
55 views

Start GUI-Application in Docker Container with sudo

System: Ubuntu 16.04 Display-Manager: lightdm I'm trying to create a docker container FROM ubuntu:latest where a GUI-Application is running in. The application needs to get executed with sudo to ...
0
votes
1answer
50 views

Restarting X session shows screen blank for some time and comes up

When I restart the X session using Ctrl + Alt + Backspace in Ubuntu Machine , the X session is restarted and blank screen is showing up for some period of time(3 sec) and then the session comes up. ...
1
vote
1answer
47 views

Keep screen rotation after monitor switched on/off

I have Ubuntu 14.04 with auto login to my session and Intel graphics. My goal is to be able to start ubuntu without any screen connected. I also want to rotate left. Actually if I start my DP or ...
2
votes
0answers
25 views

Can not open Terminal and close XSERVER

I recently installed Ubuntu 14.04 and it worked fine for the first couple of times then I started getting a error system running on low graphics mode and was not even able to login. I looked up on ...
3
votes
1answer
48 views

setting the default gpu

I have two gpus on my machine: $ lspci | grep VGA 01:00.0 VGA compatible controller: NVIDIA Corporation GM200 [GeForce GTX 980 Ti] (rev a1) 03:00.0 VGA compatible controller: NVIDIA Corporation GF108 ...
5
votes
2answers
4k views

NVIDIA proprietary driver logging me to console instead of GUI

Firstly i want to apologise for any mistakes, English is not my native language. My problem is I can't get NVIDIA proprietary drivers to work. I tried to install it on Ubuntu 12.04.1 32 and 64 bits, ...
1
vote
0answers
33 views

How to run GUI program in remote shell via xterm and then close xterm without kill program

I need to launch a program having a GUI, press "start" button on it and then close xterm keeping up the program till the end of his process. How do I do that?
0
votes
0answers
60 views

Ubuntu freezes at login screen after resume

My only workaround so far is pressing alt+ctrl+backspace and everything looks fine again. Here is the output of .xsession-errors: Script for ibus started at run_im. init: at-spi2-registryd ...
0
votes
1answer
114 views

cannot execute binary file processor and file 32 bit

I am running ubuntu 12.0.4 LTS based OS on my ARM based processor. I am not able to run an executable file. The name of my file is SerialSignals. When, I type, ./SerialSignals I get root@...
0
votes
2answers
380 views

Installing NVIDIA GEFORCE 820M Driver in Ubuntu 16.04 LTS

I want to install Nvidia Geforce 820M graphic card driver in ubuntu 16.04 LTS. I tried all sort of sudo apt-get install nvidia-current and all those ppa, Additional Driver, Synaptic.. But still the ...
0
votes
1answer
214 views

DisplayLink ASUS MB168B+ issues

First of all, let me tell you I am fond of Ubuntu and linux, using it every day since 4-5 years now. I love it, i keep loving it but sometimes it is just frustrating to see how much effort it takes ...
3
votes
2answers
273 views

Lubuntu upgraded from 15.10 to 16.04 with nvidia-361 and xserver settings are empty

As the title suggests, I've just done an upgrade. Unlike other unlucky folk, I've had no problems with logging into the GUI. But it seems like the nvidia drivers are not properly installed. My xserver ...
0
votes
1answer
15 views

Java programs cause my xserver to freeze

I'm running Ubuntu 15.10. Sometimes running Java programs causes my entire xserver to freeze. I can't close stuff, use programs, or do stuff like type in terminal. Using Control+Alt+F1 allows me to ...
0
votes
1answer
34 views

xhost command in script fails when executed by initctl

For some reason, I have to execute xhost +SI:localuser:root to allow GUI for root user. I have put this command in a shell script, which will be executed at startup by upstart. When I execute this ...
0
votes
2answers
194 views

Why is my mouse invisible on ubuntu 14.04?

I'm running a clean installation of 64-bit Ubuntu 14.04 with dual monitors. When I start up the mouse is invisible on the login screen and after logging in. Relogging in does not work. I've googled ...
1
vote
1answer
37 views

Ubuntu stopped working without apparent reason

I'm pretty new to the Linux System, I've installed Ubuntu 14.04.4 LTS and I am more then satisfied. I'm web delevoper,and for the first time in my life everything worked right away. I installed ...
0
votes
0answers
74 views

How to completely kill all X-server processes? (As pertains to an NVIDIA CUDA installation)

Specs: Ubuntu 15.10; CUDA version 6.* (6 point something) is already built into my NVIDIA proprietary driver; I am trying to upgrade to version 7.5--compatible with Ubuntu 15.04 (but it works on my ...
2
votes
2answers
3k views

Can't switch to Nvidia GPU from Intel or how to make Nvidia driver work (black screen, freeze login in, errors etc)

My problem is known, but still remains unsolved. After installing the latest (or any other version) of Nvidia drivers I get black screen or am unable to login. Useful information: nvidia-detector ...
0
votes
0answers
27 views

Intel Graphics stop working properly after installing Xen

I've installed Xen 4.5 on Ubuntu 15.10 running on kernel 3.16.0-30 and it has caused the tty to be stuck at a lower resolution and no screen is available to xserver. It is fine as soon as Xen is ...
1
vote
0answers
29 views

Strange messages after running `sudo service lightdm stop`

I'm trying to install CUDA and the NVIDIA drivers on my Ubuntu 14.04 laptop. Following these instructions, I entered CTRL+ALT+F1, and then sudo service lightdm stop, in order to disable the X server. ...
3
votes
2answers
8k views

Cannot login to ubuntu after startx command

I wanted to manually configure the internet settings & decided to seek help from this website. Ubuntu did not allow me to perform step 1 saying, X: user not authorized to run the X server, ...
0
votes
0answers
18 views

14.04 hung at booting, even recovery boot is failing!

I have a trouble with ubuntu server machine which has NVIDIA640 card. Since this system is connected to NIS we wouldn't turn off the machine at all. But unfortunately this system hung and went blank :'...
0
votes
0answers
22 views

Ubuntu xorg.conf for AZZA mouse?

I have an AZZA mouse (link) that came with my CyberPowerPC. (Never purchase an AZZA mouse.) I'm having issues just like those described in this question. Specifically: Not too long after logging ...
0
votes
1answer
68 views

I want to create a second X server

My main display is 0, running on terminal tty7, started automatically at boot time. I switch to terminal tty2, start another X server as display 1 (xinit -- :1). I can run programs from the X ...
0
votes
1answer
127 views

Cannot get Nvidia GPU running on my HP laptop (dual graphics)

I'm trying to get the GPU GeForce 940M on my new HP laptop ENVY 17-n101ng running (need CUDA eventually), but have somehow extreme troubles switching from Intel to Nvidia... I've installed nvidia-352 ...
0
votes
1answer
51 views

X Server Starting Window Manager (Compiz-Standalone) Cursor is Black X

I'm running ubuntu server 15.10 using compiz as my window manager. My .xinitrc is: #!/bin/sh xset s off # don't activate screensaver xset -dpms # disable DPMS (Energy Star) features. ...
0
votes
0answers
18 views

Computer freezes when I close Xserver

I am trying to update the nvidia drivers and I need to kill Xserver. Opening Ubuntu with command line I both tried pgrep dm -l sudo kill (insert PID here) and /etc/init.d/gdm3 stop In both cases ...
8
votes
2answers
10k views

Getting character key code mappings in ubuntu

I am trying to play around with some keyboard layouts in ubuntu. Now there is a program called showkey which lets me see the keycode for any key pressed in the terminal. Is there any command to get ...
0
votes
0answers
34 views

Xserver crashes and restarts during boot after an update on Ubuntu 14.04

I updated today these packages in Ubuntu 14.04: apt (1.0.1ubuntu2.10) to 1.0.1ubuntu2.11 apt-transport-https (1.0.1ubuntu2.10) to 1.0.1ubuntu2.11 apt-utils (1.0.1ubuntu2.10) to 1.0.1ubuntu2.11 bind9-...
0
votes
0answers
23 views

Ubuntu 14.04 theme failed to be loaded properly and wouldn't be changed

I was playing with grub2, so I restarted my machine for several times. But at some point, the system seems to be pissed off and wouldn't load its theme properly. And any of my subsequent attempts to ...
2
votes
2answers
15k views

X server doesn't work on Ubuntu 14.04. What may be happening?

This how I used to setup my X Server on Ubuntu 13. apt-get update apt-get upgrade # nvidia apt-get -y install nvidia-current apt-get -y install nvidia-current-updates # x server apt-get -y install ...
0
votes
0answers
37 views

Crash X manually

I'm working on a the famous freezing of X server. I've already created a question about frozen X server detection As I don't have relevant answer yet, I'm wondering if anyone knows a way to ...
0
votes
0answers
87 views

Color depth won't be set to 30 on Nvidia X server settings, Help!

I have just installed Ubuntu 14.04.1 with Nvidia drivers but I believe that colours are not previewed well. So I opened Nvidia X-server setting and it's clear that the issue was related to the ...
0
votes
0answers
95 views

Frozen X server detection

I'm dealing with the famous frozen screen with Ubuntu 14.04. I can fix it by using ssh connection and the command line: sudo service lightdm restart My question is: Can I know when X server is ...
7
votes
4answers
6k views

Why is X11 a security risk in servers?

I remember reading that servers do not have a GUI because X11 is a security risk. Why?
1
vote
1answer
472 views

Nvidia drivers apparently broke Xorg configuration

I installed 15.04 on a new Lenovo Edge 2-1580 with an Nvidia GeForce 940M. It appears I need some help with Xorg. The computer will not display lightdm when booting normally. (gdm does not even ...
0
votes
0answers
53 views

How to reset multi monitor configuration for unity desktop on a specific user?

I am having problems with multi monitor settings in my laptop. It is an Acer Aspire V with an HDMI port. When I connect the port to a display: the screen freezes except for the mouse pointer ...
0
votes
1answer
69 views

Screen Tearing Nvidia GT640m

I want to use my Nvidia card on my computer rather than intel hd4000. However it has a outstanding amount of tearing both vertical and horizontal, even there is god damn triangles appearing in video ...
1
vote
0answers
76 views

GNOME desktop environment not starting

I recently moved from Unity to the Ubuntu MATE desktop environment. I was trying to install the GNOME desktop environment. I followed the following steps: sudo apt-get install gnome-shell sudo apt-...
11
votes
6answers
132k views

How do I kill the x-server?

Every time I try to kill the x-server, sudo service lightdm stop so that I can install the latest Nvidia drivers, I get an error message. stop: Unknown instance: What am I doing wrong?
0
votes
1answer
240 views

run script after xserver started

I have a script which I would love to run after xserver has started. This file is located at /home/karl/.scripts/startup/sensei-raw-startup.sh. How to I invoke this file after xserver has started?
0
votes
2answers
283 views

How to restart X server? [duplicate]

First of all I should say that I have very limited computer knowledge so go easy on me. I have Ubuntu 15.10 installed on my laptop and I was trying to to install the driver for the Nvidia video card ...
6
votes
2answers
1k views

How can I *disable* Ctrl+Alt+Backspace?

Building on a question from 2010 (3 years ago) I'm trying to achieve the exact opposite: I want to disable the Ctrl+Alt+← keyboard shortcut to kill the X server. For me, it appears to be disabled in ...