Questions about X.Org Server (commonly known as Xorg Server, XServer or Xorg), the software that runs the X window system used by most desktop window managers (GNOME, KDE, etc)

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0
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1answer
157 views

Ubuntu 14.04LTS Black Screen (Already purged NVIDIA)

What's happening: Black screen instead of desktop. I see the purple screen with the Ubuntu logo before it goes to black. My monitors are plugged into my motherboard (just like they were before I ...
0
votes
1answer
23 views

Upgrade 14.04 to 15.04 xorg blank screen

How to debug x server, or reinstall it from scratch? I used ubuntu-gnome.
1
vote
0answers
12 views

Frequent Xorg crashes with Radeon R9 280X

My system has been running fine with the abovementioned card on Ubuntu 14.04 and 14.10 for about 2 months. After performing a full reinstall of Ubuntu (to 14.04 again), I have been encountering X.org ...
0
votes
0answers
7 views

Clip behavior - disappearing content when copying text

Very often when I want to simple move a block of text, it disappears from the clip content. I mark a block of text, click ctrl+x and then when I move to the target area with my cursor, I click ctrl+v ...
0
votes
0answers
5 views

How to trace down a global hotkey definition?

There are more than one place where global key bindings can be made: Like in desktop environments, special key mapping utilities, popup desktop utilities like clipboard managers, input support, and ...
32
votes
8answers
20k views

How do I remap the caps lock key?

In the past the past I used to use xmodmap to prevent the Caps Lock button from working, and then tell Launchy to handle the key press instead. I can't seem to do this anymore. What is the best way ...
1
vote
1answer
100 views

How to stop X server in Kubuntu 15.04?

In Kubuntu 14.04 and 14.10 I stop the X server with sudo /etc/init.d/lightdm stop but it don't works anymore. How to stop it, to install a graphic driver ?
0
votes
1answer
35 views

gksu: Gtk-WARNING **: cannot open display: :0

All of the sudden gksu stopped working for me: ~$ gksu gparted (gpartedbin:24252): Gtk-WARNING **: cannot open display: :0 The same happens with gparted-pkexec: ~$ gparted-pkexec No protocol ...
4
votes
2answers
921 views

How to intercept all keystrokes

First of all, I don't expect that something like this already exists, but I am interested in knowing how something like this would be accomplished. I want a program that I can have running in the ...
1
vote
0answers
7 views

Cannot set up dual monitor on TweinView model

I want to connect an external monitor to my laptop via HDMI, external and built-in monitor are both 1920x1080. However, if I chose to expand screen, the total resolution will be 1920x1080 instead of ...
0
votes
0answers
28 views

bumblebee multi monitoring setup

I'm trying to create a multi-monitoring setup with bumblebee at Ubuntu 15.04. config: VGA+HDMI at intel HD2000 and DVI at nvidia geforce 210 I'm using the proprietary nvidia 340 driver. I think ...
0
votes
0answers
31 views

Xorg is using 100% CPU with 15.04

Since I upgraded to 15.04 everything is horribly slow, with Xorg using 100% CPU. Can't find any reason in any log file. I have lspci 00:00.0 Host bridge: Intel Corporation Xeon E3-1200 v3/4th ...
0
votes
1answer
184 views

Nvidia Geoforce 8600M on Ubuntu 15.04 won't start (MacBookPro 4,1)

My MacbookPro 4,1 with Nvidia Geoforce 8600M worked find under Ubuntu 14.10. I did the upgrade to 15.04 and couldn't get a desktop. I got the popup about couldn't configure. I saw a posting ...
12
votes
3answers
7k views

How do I run a graphical application on a remote server when logged in through SSH?

I am trying to run gedit from an SSH terminal on Windows, connected to an Amazon EC2 instance running Ubuntu 12.04 Server and I am getting this error: Cannot open display: How do I fix it?
5
votes
1answer
13k views

gedit “cannot open display” , on remote computer , using ssh - Ubuntu 12.04 [duplicate]

Possible Duplicate: How do I run a graphical application on a remote server when logged in through ssh? I am getting the following error message when using ssh to log into a remote ...
1
vote
3answers
392 views

Nvidia: Xorg crashes on 15.04: “drmSetMaster failed: Invalid argument”

Nvidia: Xorg crashes on 15.04: "drmSetMaster failed: Invalid argument" On a clean install of Ubuntu GNOME 15.04, I get the following screen after installing the Nvidia proprietary driver: starting ...
0
votes
1answer
4 views

gridengine-qmon package missing context help

I upgraded to Precise and installed gridengine. The qmon GUI administrative tool still has the ancient X11 style interface from Sun Grid Engine, but when I click a Help button the "Context Help" popup ...
0
votes
1answer
10 views

Enabling 3d acceleration in OS AMD/ATI driver

Need help from the community enabling 3D acceleration on an AMD/ATI HD6450 graphics card driven by the Open Source Radeon driver. It may help to know that this card replaced an 275GTX NVidia, ...
1
vote
1answer
12 views

How can i install xfonts-… packages?

I need to install xfonts-100dpi xfonts-75dpi xfonts-scalable xfonts-cyrillic packages. But I get an error, that they are not exists. Using Ubuntu 14.10 Need them for xvfb
0
votes
0answers
14 views

Different mouse speed per screen possible?

I am using Ubuntu 15.04 and have 3 screens setup, 1x4K screen and 2x1080p screens. However due to the larger resolution on the 4K screen, the mouse feels really slow and I would like to speed it up ...
4
votes
3answers
4k views

what does startx command do?

While reading about Ubuntu I found the following statement..... If the display manager is not started by default in the default runlevel, you can start X a different way, after logging on to a ...
2
votes
1answer
65 views

Ubuntu 14.04 with unrecognized monitor (or without monitor) - boot problem

I've Ubuntu 14.04 installed on my computer. I need to start it even if not any monitor is plugged. Basically I need to do that because at the startup my monitor isn't recognized but plugged in. ...
72
votes
15answers
175k views

Higher screen resolution for VirtualBox?

I have been trying this for a while but no luck. I installed ubuntu-11.10-desktop-i386 twice. Also installed guest additions. However I always get maximum screen resolution as, 1024 x 768. Do I need ...
1
vote
1answer
28 views

Desktop never loads when using I Nvidia drivers

I upgraded to 14.04 on a Macbook Pro 5,5 and now none of the Nvidia drivers work. If I install nvidia-current, that installs the 304 driver, which appears to actually be the oldest. With that, I ...
2
votes
6answers
5k views

Nvidia 740M still not working after Bumblebee installation

first of all, I have checked a lot of similar topics, but I still can't get my laptop to use Nvidia 740M. So first things first. I have a laptop Asus X550V(i5-3230, 4gb RAM, Nvidia 740M + Intel ...
0
votes
1answer
23 views

ubuntu 14.04 only boots in recovery mode

I have the same problem in my Ubuntu desktop, then if I change the X.Org X server-Nouveau driver for the NVIDIA one, the display crashes next reboot (even in recovery mode) so only reinstall option ...
1
vote
1answer
70 views

How to install Nvidia driver?

First of all after installation of Ubuntu 14.04 I was having problem - system freezes after few minutes of work. I installed nvidia-current driver, it helped. I decided to install something more ...
1
vote
1answer
46 views

OpenSSH: X-Forwarding: wrong authorisation protocol

I have edited the /etc/ssh/sshd_config so that: AllowAgentForwarding yes AllowTcpForwarding yes X11Forwarding yes X11DisplayOffset 10 X11UseLocalHost no And I connect to the host with: ssh -X ...
2
votes
1answer
45 views

How to debug xrandr not setting up the desired resolution?

I need some help in figuring out why does xrandr failes to set the desired resolution. I have a dual monitor setup: 13" laptop preferring 2560x1440 resolution 24" monitor preferring 1920x1200 ...
-1
votes
0answers
19 views

NVidia Screen Freezed

I'm hoping this message will solve new Linux and Ubuntu users some hair-pulling. I recently acquired a Compaq Presario tower with a Nvidia Geforce graphics card. After installing the latest 32-bit ...
0
votes
0answers
18 views

How can I start a simple X with just firefox? [duplicate]

I'm trying to start a simple X server with just one app open, which is Firefox. Basically, I want to power on my Ubuntu server and show Firefox, nothing else. Is there a way to make this possible? ...
2
votes
1answer
57 views

Desktop freezes regularly. Ctrl+Alt+F keys doesn't work

I've been running 14.04 on my work computer (Dell Latitude E6440) since last May with no issues. 4 or 5 weeks ago I upgraded to the 3.16 kernel and the newer X.org via the LTS Enablement Stack. ...
2
votes
0answers
54 views

Low graphics mode error on open-source driver

I recently did an update from Software manager, which I was holding back for a month (~250MB), it prompted me for a reboot after all the updates were installed. I rebooted into an error of Low ...
0
votes
1answer
39 views

Trusty: Flickering problem with xorg opensource driver on ATI RV710 [Mobility Radeon HD 4330/4350/4550]

Last week I reinstalled Ubuntu 14.04 on my laptop and since then I'm experiencing strange short horizontal flicker. It's hard to describe so here is a video of it and this is my current setup: lspci ...
0
votes
0answers
32 views

The X-server is not running

I have a blackscreen. System: Ubuntu 14.04 Card: Radeon HD 5670 I used open-source drivers: OpenGL version string: 3.0 Mesa 10.6.0-devel (git-c015008 2015-04-20 trusty-oibaf-ppa) OpenGL ...
14
votes
4answers
16k views

How do you change brightness, color and sharpness from command line?

I am controlling my PC with SSH and scripting. How can i change the brightness, color and sharpness from command line? Try 1: failed $ sudo redshift -t 5000:5000 -g .5 Cannot list GNOME panel ...
0
votes
1answer
34 views

How to make multiple monitors work just like in Windows?

I've tried various DEs (Xfce, MATE, GNOME...), but I couldn't set up my screens properly in any of those. Here's the setup I'm looking for: 2 screens with different resolutions (LVDS on the left - ...
2
votes
2answers
855 views

Dual monitor setup, why does NVidia 340 Prime only detect one monitor?

I'm using: Alienware M14xR2 laptop running Ubuntu 14.04 2 * DELL U2412M monitors attached via HDMI and Mini Display Port Optimus graphics (Intel + nVidia GeForce GT 650M) running with nvidea-340 and ...
2
votes
1answer
39 views

broken packages error while trying to install xserver-xorg-input-mtrack

I'm new to Linux and I'm a mac user. I'm now having a problem when i try to install "mtrack" to "fix" my macbook pro 8,1 trackpad. My ubuntu is on version 14.04 currently and i got this error message ...
15
votes
1answer
8k views

Where do I find a list of all X keysyms these days?

They used to be in /usr/lib/X11/XKeysymDB or /usr/share/X11/XKeysymDB, but those have been missing from Ubuntu for a while. I've tried google, but all I get are more references to XKeysymDB or the ...
0
votes
1answer
72 views

Screen problem with ATI drivers but not with X.org

Whenever I restart the X session, either from a suspension or a screen lock, the screen is a mesh of lines where I can not even see the mouse. To make it work I switch to another session (say, ...
0
votes
0answers
53 views

X11 Forwarding in ubuntu 14.10 server vps not working

I've bought a VPS with Ubuntu 14.10 server installed on it. Since last two days, I've been desperately trying to get X11 forwarding to work with my VPS and windows machine. Problem: Getting echo ...
2
votes
0answers
230 views

Revert to open source graphics drivers - options greyed out 14.04

I tried switching to the proprietary AMD/ATI drivers using the Software Center > Edit > Additional drivers window in 14.04, which left me with a scary black-as-the-night screen after reboot. I ...
4
votes
1answer
936 views

My NVidia GTX 960 card creates openGL problems with Unity on Ubuntu

I posted a bug about this on launchpad already, but was hoping maybe someone on here would have some suggestions about other things I could try. Background: I had a working Ubuntu 14.10 system with ...
1
vote
0answers
226 views

Nvidia GTX 860M ubuntu 14.04 blackscreen

community I have since a clean ubuntu 14.04.2 install and two weeks searching the following Problem. System Specs: OS: Ubuntu 14.04.02 Kernels: 3.16.0-30-generic (does not boot) 3.16.0-31-generic ...
8
votes
7answers
3k views

Mouse flickering on one of my two screens

I just installed ubuntu 14.04 and the mouse is now flickering on one of my two screens. The other screen doesn't have any flickering. I was previously using ubunutu 13.10 without any issue. If I ...
0
votes
1answer
156 views

Firefox problem at showing some characters - ubuntu 14.10

My problem is what the title says. I show an image to illustrate: Some characters are not displayed and instead that square with random pixels appears. It can happen in any character, sometimes can ...
3
votes
1answer
54 views

How to stop particular instance of X server?

I know this sounds ridiculous at first glance, but I started X session from root with # X :1 vt08 & So I guess sudo stop lightdm would be overkill. How can I stop that instance of X server ...
0
votes
1answer
24 views

Will libdrm-nouveau2 library conflict with proprietary nvidia-346 driver?

I recently installed the nvidia-346 driver from ppa:xorg-edgers/ppa because prior versions of the nvidia driver in the official repositories were not compatible with my Nvidia Geforce GTX 970 graphics ...
2
votes
1answer
32 views

X doesn't start anymore on 12.04 LTS after HWE upgrade

12.04 LTS asked me to upgrade my "HWE" since the current one was no longer supported. I performed HWE upgrade and now Ubuntu comes up with a black screen and doesn't start. Using the "Recovery" boot ...