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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138 views

Ubuntu Server 15.10 Hide Auto-Login Startx text on boot up

I have ubuntu server 15.10 running compiz as the window manager. On boot up I am starting the compiz session with startx in my .profile and then running a GTK fullscreen application that the user is "...
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202 views

The system is running in low-graphics mode on Ubuntu 15.10

After googling for hours and trying different things for hours I need your help: I updated the system and after a reboot I cannot log into Ubuntu again (unfortunately I don't know which packages got ...
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48 views

Adding new X session on vt8 results in black screen

I'm trying to add another X session on vt8, for testing a window manager under different conditions without interfering with my regular session. I've done this in the past by simply running startx -- :...
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43 views

Xorg doesn't detect graphic card in pure EFI boot

I'm trying to speed up the boot process in my iMac as much as possible. With Ubuntu 14.10 and kernel 3.16 I succeeded in booting the system by creating a small HFS+ partition, to be used as the ...
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148 views

Run 15.10 in a Virtualbox VM without uninstalling NVidia drivers

My system is dual-boot. Sometimes I boot my Ubuntu partition natively, and sometimes as raw VMDK from my Windows 7 host. Is it possible for me to have 3D acceleration in the VM without physically ...
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26 views

Bizzare rendering issue with Intel 965G graphics

I've recently revived an older desktop computer, which previously had Ubuntu 14.04 on it but hadn't been used for at least a year. I've managed to get 15.10 onto it, and it all went well and boots ...
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46 views

AMD driver issues (Ubuntu 14.04 w/ KDE)

As I am a user that moved from windows, I really enjoy PC gaming. So, when I moved over to Ubuntu, I realized that it really, really sucks. I think the main problem here is the AMD drivers, but I'm ...
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79 views

Cannot change monitor refresh rate via VGA to DVI connector

I am using some old CRT monitor currently with Nvidia g210 graphics. I am dual booting Win8 and Ubuntu 12.04. What bogus me, is I cannot get desired resolution with max refresh rate as I get on ...
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36 views

X11 freezes and responds to no input?

Recently, I've began to notice that my Ubuntu installation is having some serious problems with X. On occasion, my system will lock up, and X will no longer update the screen. I can still do things in ...
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74 views

How can simulate mouse clicks in a cron job on a headless machine?

I have a headless machine running Ubuntu 14.04 LTS. I'd like to set up a cron job to daily click some buttons on a web page. I often use X2Go, and I know I could manually open an X session and use ...
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46 views

My custom keyboard does not work

I am trying to create a modified version of Colemak inspired by Programmer's Dvorak, but aimed at writing in LaTeX. The current, experimental version is seen below. Like in Programmer's Dvorak, the ...
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30 views

PLEASE HELP?!?! Partitioned on a Chromebook, don't know how to fix!

So I set up some hard drive partitioning on my school Chromebook and installed Kubuntu (bad idea right lol I live dangerously.) I had it working seamlessly until an error came up when I tried to ...
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305 views

ATI drivers incompatible with xorg

some of you are having problems with ati driver? I have a Radeon R7 240 and It Seems That the drivers are no more compatible with the xorg server I'm using...what can I do? I'm on the last release ...
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87 views

Error When Attempting to Run sudo GUI Program in Lubuntu 15.10

Whenever I attempt to run a GUI program as sudo from LXTerminal, I get this error: No protocol specified ** (aptik-gtk:2701): WARNING **: Could not open X display No protocol specified Failed to ...
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41 views

Unwanted super thick borders in Xubuntu 15.10

I have recently updated to Ubuntu (Xubuntu) 15.10. After this update, I see super thick borders around some windows. This seem to plague only Gtk+ applications: Why? Can I fix it? Note: I do not ...
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49 views

set gamma when lightdm starts

I want to set the following when booting lightdm: xrandr --output eDP1 --gamma 0.8:0.8:0.65. I have tried: Creating a startup application (works, but only after loggin in. setting display-setup-...
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73 views

Xorg.conf ignores synaptics settings for scroll direction

Because of poorly functioning touchpad I wanted to provide more detailed configuration for it using xorg.conf. So I create a new xorg configuration file by copying default configuration file using ...
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603 views

How do I set my refresh rate to 120/144 hz in Gnome 3?

I realize there are several questions that look very much like this one, but none of their accepted solutions work. For example, I can set the refresh rate to 144hz using xrandr, but the obvious ...
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43 views

Login loop revisited

I'm using 14.04 LTS Desktop on a Lenovo laptop and it's been working great until this morning. After a reboot I encountered the login loop, where you log in and immediately return to the login screen. ...
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16 views

Screen goes blank when TV goes off for some time

I have a Ubuntu 12.04 installed on a Fujitsu Esprimo with Intel Graphic Card. This computer is connected to a TV over DVI to the TV HDMI (DVI-HDMI Cable). The TV goes off everyday from 7pm till 7am ...
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183 views

How to start gnome/unity by SLiM?

I have an Ubuntu 15.04 and installed Unity, Gnome3 and Awesome WM. All worked fine: I could start any Desktop Environment by any Display Manager Recently I installed a SLiM DM. $ sudo apt-get ...
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491 views

Unhelpful “Could not get screen information” in gnome-control-center display - 15.10

I'm getting a very unhelpful error attempting to open the screen display preferences on Ubuntu deskop 15.10. After some research I found that it could be related to dual displays. I had an older CRT ...
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176 views

Xorg fails to start after upgrade 15.04 -> 15.10

I am near to crying with my Acer Travelmate that annoys me ever since I installed a Ubuntu version on it and hope for some help here: My newest problem is a complete failure of the Xorg giving an ...
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218 views

External monitors not working with Dell Latitude E7250+EPort Plus

I am running Xubuntu 14.04 on a Dell Lattitude E7250 (intel video card) and have a Dell E-Port Plus docking station. The docking station has 2 DVI ports and 2 DP (DisplayPort) ports on the back. The ...
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61 views

What is the use of modifier keys in Xmodmap?

I was following this question to do some remapping. In the question, there is: Additional information: The sequence of these mappings is Key, Shift+Key, mode_switch+Key, mode_switch+Shift+Key, ...
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203 views

Pipe B FIFO underrun

All of a sudden, while reading my mail, I got this: What does it mean and how to avoid it? I do not use Nvidia or any other proprietary drivers. I could Ctrl+Alt+F1 and kill X as a workaround, ...
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39 views

Change I-beam cursor to only 1px like on Windows

How to change the current 3 px wide I-beam (select-text) cursor to only 1 px wide like on Windows. I am using Unity as my DE fro Ubuntu 15, if that helps. As far as I know Chrome OS and Chromium ...
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194 views

Dual monitor (ati r9 290 + intel integrated graphics) driver issues

I am running Kubuntu 15.04 and have trouble setting up the proprietary drivers with my dual monitor setup. I use the ATI/AMD Radeon R9 290 graphics card for the main screen and I use Intel Integrated ...
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59 views

How do I display X keyboard layout?

In Ubuntu 14.04, I am switching keyboard layouts with X: gsettings set org.gnome.settings-daemon.plugins.keyboard active false setxkbmap -layout "us,ru" -option "grp:ctrl_shift_toggle,grp_led:scroll,...
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81 views

xorg crash and returns to the login screen

On Ubuntu 15.04 When using mostly any gnome application after few seconds everything close at I am back to the login prompt. I tried with the nouveau and the Nvidia driver but no change. Chrome is ...
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1k views

How to solve repeating Xorg crash?

After about a year of using Ubuntu 14.04 on my laptop with very few crashes I have had a number of crashes over the last week. They all product the same error code as listed below. When the crash ...
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555 views

X server started with “-nolisten tcp” in spite of DisallowTCP=false in /etc/gdm/custom.conf

I need to configure a X server in Ubuntu 15.04 gnome which should listening for remote connection on port 6000. I configured my gdm as per askubuntu question: How to make X.org listen to remote ...
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209 views

Infinite login loop in Ubuntu 14.04 while using Nvidia Prime

I was an happy user of Nvidia proprietary drivers on an Optimus Laptop with Ubuntu 14.04 until a security update broke something with Xorg. It was around April 2015 and I'm still trying to fix it. ...
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110 views

Can't install Ubuntu because live system uses too high monitor frequency

I just downloaded Ubuntu 15.04 and I put it into a pendrive. When I boot the pendrive, Ubuntu logo starts to charge but after a while, the monitor turns black with the mesaje "Frequency out of range: ...
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90 views

Ubuntu x window system random restart

SMH Well, after looking closer at the syslog file, I took a closer look at the problem: Sep 6 14:10:02 rapbox CRON[2310]: (root) CMD (pkill -KILL -u sam) And noticed the CRON part. My friend and ...
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267 views

How to change the preferred mode on xrandr?

I have a dual monitor setup, a laptop monitor and an external VGA monitor. The preferred mode should be 1920x1080 on laptop and 1600x900 on external monitor. That's how it was but I installed (and ...
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99 views

Trouble with PRIME configuration on Nvidia Optimus Laptop

I have a laptop with two graphics cards: An integrated Intel card, and a discrete Nvidia one. I could never get bumblebee to work properly, but the new Nvidia drivers (I am running version 340) have ...
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84 views

Synpatics Touchpad occasionally not detected

I have Ubuntu 15.04 (kernel 3.19.0-26-generic) on a Gigabyte P25 W v2 that sporadically does not appear to detect the touchpad at boot. USB mouse will always work fine. The input device, when it is ...
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171 views

xhost +si:localuser not working since 14.04.3

I've been using the same 35x11-common_xhost-local config successfully to allow X11 access to other users with ubuntu 14.04, however, since I've started to use the latest 14.04.3 iso, xhost +si:...
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141 views

How to force Xorg to use integrated video (ASPEED) instead of my Tesla K20?

I'm trying to get my brand new server up and running for gpgpu with 14.04LTS, but I'm having issues with the graphics drivers. If I install the CUDA Toolkit, it also installs regular nvidia drivers ...
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164 views

Weird display error / Black lines all over the screen when using nvidia driver

My system: Laptop: Asus K55 Grapics driver: Nvidia 340.76 (I also have nvidia prime, so I can switch to intel graphics) GPU: GeForce GT 635M CPU: Intel Core i5-3210M CPU @ 2.501GHz So, I ...
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52 views

2 Nvidia cards. How to switch xserver output on Ubuntu 14.04?

I have two Nvidia graphic cards in my computer. I want to use the slower one for my xserver and the faster one for computations with Cuda. However I don't know how to tell my Ubuntu 14.04 or my Nvidia ...
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53 views

After installing QtCreator, lightdm not turn on xubuntu 14.02

I just simply wrote sudo apt-get install qtcreator in terminal and saw how he removing xserver and some graphical packages in installation process. At the end, he install them again, but after reboot, ...
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71 views

Setting a custom splash screen using blackbox on Ubuntu 14.04

I'm using Ubuntu 14.04 with blackbox as the window manager. I would like to set a custom splash screen, but I have no idea where to start.
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239 views

Two X-screens, how to get a window manager on second screen?

I'm using Ubuntu 14.04 with Unity. I have two X-screens, on separate graphics cards. I believe the screens are :0.0 and :0.1. The problem is that, at startup, only my primary screen has a window ...
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100 views

odd xorg hang when starting intellij

I have a REALLY odd hang that I just cant figure out. When I start intellij (using java7/java8) my terminal will accept input for a few minutes. Then it'll stop accepting any input. vmstat shows the ...
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145 views

How to fix screen tearing of the Nvidia 675m gtx in ubuntu 14.04?

I tried to use the common methods: In nvidia X server settings and compiz-manager, but the Vblank option and the screen refresh rate is missing. If i switch back to my intel 4000hd card, everything ...
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598 views

How can I switch graphic card acceleration from sna to uxa?

The sna acceleration is default option and I want to go back to uxa because sna doesn't work after suspending on my laptop. And it doesn't work just adding /etc/X11/xorg.conf.d/20-intel.conf which ...
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33 views

How to set 2 GPUs on Ubuntu?

I have 4 monitors and 2 GPUs. I have tried to set 2 monitors for each one of GPU. So, I could have 2 sets of this (each set is prefered as 2 monitors connected to 1 GPUs)... Here is my problem. It ...
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75 views

Is it possible to rotate the TTY1 console screen without X support?

I am using Ubuntu 12.04.2 LTS booting directly to tty1. The machine is an Intel NUC with a Core i5 + iGPU, display connected through Display Port. As far as I can tell, it does not have any graphical ...