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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186 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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98 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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84 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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207 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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92 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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76 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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141 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 ...
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133 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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51 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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51 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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70 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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196 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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92 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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133 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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536 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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31 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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62 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 ...
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91 views

My mouse does not work

I have a Silvertec Optical Mouse Model:GM02. It does not work after boot. I tried to run this command after boot: $ xsetpointer -l | grep Pointer I get these results: 2: "Virtual core pointer" ...
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585 views

Xorg Server refusing to start after Ubuntu 15.04 Vivid upgrade

Hellu. Yesterday evening I decided to upgrade my laptop (14.04) to the latest release, aka 15.04. I ran "do-release-upgrade" as root, said yes to everything and went to bed. This did not go as smooth ...
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65 views

Disable the window moving feature in Xorg and use Tiling instead

I've noticed when moving windows Xorg takes up a lot of CPU. But I only have a weak old Celeron Single-core with 2.80GHz. So my question is that how to disable the moving windows feature and use ...
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268 views

How to fix screen resolution after driver upgrade?

For quite some time, I have had Ubuntu 15.04 installed and working well, using the nvidia-349 driver from the xorg-edgers ppa. However, I recently noticed that the nvidia-352 driver was available, so ...
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253 views

Stop or disable keyboard/mouse/input grab from shell

I am trying to debug a full-screen application which uses OIS for input. The program grabs control of mouse and keyboard. When I hit a breakpoint (i'm using gdb), I cannot continue, step, or do ...
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76 views

Ubuntu on laptop: opening a window on an HDMI external monitor via command line

Using Ubuntu 14.10 on a Dell latitude, I'm trying to set up an external display connected through a mini-displayport. Ideally, I would like to be able to open a custom full screen application on the ...
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104 views

clutter - Draw above Gnome Shell Desktop

I am aware of the question Drawing over the desktop and I don't think this question is a duplicate. I need a simple way to draw stuff above my Gnome Shell desktop with some scripting language. The ...
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147 views

Can't start X server on main partition — Mesa/NVidia conflict?

I am unable to start my X server any time I try booting my computer -- which is running Ubuntu 14.04 -- from the default partition (i.e., by choosing the first "Ubuntu" option in the GRUB menu). ...
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555 views

eGalax multitouch and calibration 14.04

I'm doing some kiosk touchscreen school project. I have eGalax touchscreen and I'm using the latest eGalax drivers. I followed this tutorial : https://wiki.ubuntu.com/Touchscreen I'm using eGTouchU ...
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977 views

How to setup xorg to use multiseat in Ubuntu 14.04

I trying to setup multiseat on clearly installed ubuntu 14.04.02 with core i3 integrated video and nVidia GT260 video cards. I followed this miltiseat instruction on wiki.ubuntu and manual Multiseat ...
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126 views

(X)Ubuntu 14.04 LTS completely freezes on my Alienware 14

I installed Ubuntu 14.04 LTS (and Xubuntu 14.04 LTS afterward) on my Alienware 14 (specs below) in dual boot with Windows 8.1 x64. I'm experiencing random and sporadic freezes (the mouse is not ...
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429 views

Xorg.conf is not changing the Display orientation

I am currently using Ubuntu 15.04 with a GTX 570 on 346.46. I have a 2560x1440 display with a 1080x1920 (portrait) display to the right. I am using i3 as a window manager. The displays seem to be set ...
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17 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 ...
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162 views

How to get true, correct font rendering on Ubuntu 14.04+

Font rendering has always been a huge problem on Ubuntu. I am hoping someone has a real solution to this problem. I have a laptop with a 17" (382x215 mm) display running at 1920x1080, approximately ...
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139 views

Problems with starting x11vnc on boot

I'm trying to start up x11vnc on boot, without the need to log in, but I ran into quite a few problems and none of the guides helped. First of all, rc.local does not work, as it apparently starts ...
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58 views

What controls the generation of window borders? (MATE)

What I'm looking for is what controls window borders; specifically what actually defines what goes where (as in, the program that says the bottom bar goes at the bottom, not the side or what keeps the ...
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330 views

14.04 - Make synclient changes persistent

No other related thread has a definite answer for this. Some say to create 50-synaptics.conf in /etc/X11/xorg.conf.d/ , while others say to use the one in usr/share/X11. Creating ...
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375 views

freeglut OpenGL GLX extension not supported by display ':0'

I am trying to run an application with OpenGL and the following message apears: freeglut OpenGL GLX extension not supported by display ':0' I already read lots of topics here and in stackexchange ...
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70 views

why is my desktop scaled after starting in latest vivid

I'm running the latest Vivid packages and in the last update I did on Monday my laptop has started to do some strange scaling behavior once the desktop starts. I can see a flash at the lightdm login ...
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467 views

Ubuntu 14.04.2 nVidia 6200 proprietary drivers cause artefacts on unity/GUI

I had recently reformatted and installed Ubuntu 14.04.2 32-Bit desktop and my nVidia graphics card is playing up showing horrible artefacts on Unity. The open source driver that Ubuntu installs by ...
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430 views

Nvidia gtx 970 dual monitors xrandr missing resolution

Hello i have a problem after update Nvidia GTX 970 drivers. Konfiguracja komptutera: Ram 16GB Type: DDR3 intel i7 4430 K SSD 2x GoodRam w RAID 0 madadm Nvidia GeForce GTX 970 Display Devices: ...
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112 views

Ubuntu 14.10 + AMD 6550m

I got a HP DV6 3240 Notebook with a powerxpress video card, AMD HD 4200m + HD 6550m. It works very well with Ubuntu 14.10 + open source xorg drivers. But unfortunately i need some catalyst functions, ...
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57 views

Screen turns off immediately after X starts

Yesterday I disconnected my HDMI monitor, and connected to another monitor while the system was running. The resolution was now too high for the new monitor (1280x720 monitor was showing the 1920x1080 ...
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436 views

ubuntu 14.10 - lightdm can't start unity. Bad xorg config?

When I try to login with lightdm my monitors go dark and then switch off before taking me back to the lightdm login screen. I get a message telling me: Could not switch to the monitor configuration ...
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169 views

ATI Proprietary Drivers Dual Head Setup Failure

I have an odd problem, which I think I at least have well described. First, I'll describe what I want to do: I want to run two monitors on my desktop PC, I want to drag windows between the monitors, ...
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332 views

X.org is allocating more than 900MB of RAM but xrestop says ~1/40th of that is actually used; how I force it to free the rest without restarting X?

So X.org is allocating an insane amount of RAM: right now 910MB (according to the RES column in htop), second only to Firefox (really Nightly) (at just over 1GB) and trailed by GNOME Shell (at only ...
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80 views

Desktop Environments Incorrect After SLiM Install

I am working on making an automated install based off of Lubuntu using Debian Installer so that the install is as automated as possible (a few inputs at the very beginning). So far I am mostly pleased ...
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203 views

Upgrade Xorg drivers breaks multiple display monitor Nvidia card Quadro610M [Ubuntu14.04]?

I recently upgraded the xserver drivers xserver-xorg-core and xserver-common to their latest versions (1.15.1-0ubuntu2.6). Ever since I am unable to correctly get a dual monitor setup working. Before ...
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21 views

New configuration files for X

Something happened to my Kubuntu 14.10 system that caused it to lock up, and when I rebooted I just got a black screen. I was able to log in on a virtual terminal and also was able to reboot in ...
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111 views

Fullscreen Detection Algorithm for lockscreen/screensaver

I'm working on a cross linux fullscreen detection algorithm, for use in detecting lock screen and screensaver. This is what I have so far: Check if _NET_WM_STATE_FULLSCREEN is supported, if it is ...
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291 views

Cannot Start Ubuntu in Chromebook without Web Browsing First

I just got a Toshiba 13.3-inch Chromebook 2 and have set up Ubuntu Trusty Tahr with Unity through crouton. Whenever I turn the computer back on after having put it to sleep or shut it down, I cannot ...
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151 views

Xorg high cpu usage when wireless connection is active

I use Xubuntu 14.04 LTS 64-bit (3.13.0-43-generic) on a low-end notebook (AMD C-70, 2GB RAM, RTL8188EE) and a router D-Link DSL-2640B. The wireless connection looks fine, but it is impossible to use ...
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131 views

How do I restart my X server?

I turned off my X server with Ctrl+Alt+Backspace. I used SysRq+Alt+B to reboot and now I can't get the X server back on. The motherboard posts and I get the same screen as I had when I used the SysRq ...