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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378 views

Dell XPS 13 Sputnik3 (Ubuntu 14.04) cannot find display-port

Here is the story. I've used the mini-display port from my XPS13 for about a year with an ASUS 2560x1440 res external display, via a mini-DP to DP connector. This has worked fine for 1 year. This ...
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63 views

$DISPLAY env var gets cleared at random times

Stock Ubuntu 14.04 Trusty. I seem to regularly experience the $DISPLAY environment variable getting cleared for some reason I don't understand. Basically everything will work just fine until it's ...
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152 views

Higher Resolution Xrandr 1400x1050 Legacy GPU

Dear Ubuntu Community, recently I (re)found my 10 year old Sony Vaio laptop, a PCG-GRT916V to be exact. I immediately had the idea to put this old laptop to good use. Over the course of two weeks I ...
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866 views

Nvidia Gtx 755M - Cannot access secondary GPU Permission denied [13]

I installed bumblebee and the Nvidia 331 drivers. I ran glmark2 and expected it to launch but I got this error. How do I run a program on the Gtx 755m graphics card? $optirun -vv glmark2 [ ...
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102 views

Two monitors one 23“ hd and one 28” 4k

I have two monitors connected to my computer, I am using Ubuntu 14.04.1. One screen is set at full hd 1920x 1080 and the other monitor is 28" 4k set to 3840 x 2160. I have nvidia 760 display card. I ...
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114 views

Certain games won't load - Nvidia

Certain games on Steam won't load. I can't figure out why. I upgraded to kernel 3.14.4 from 3.13.39 and this problem won't go away: [ 81.122225] bbswitch: enabling discrete graphics [ 81.593271] ...
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468 views

How to set up a separate X server for the Oculus Rift?

Oculus SDK version 0.4.3+ comes with an experimental Linux support for the Oculus Rift DK2. The documentation mentions two general options to run the Rift: running the Rift in a twinview ...
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177 views

How to get native resolution of a monitor?

My Ubuntu installation seems to have magically guessed my monitor's native resolution (it's the mode it's set to on startup). Unlike most, my monitor's native resolution is NOT its highest ...
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52 views

How to get ButtonPress and ButtonRelease events from middle button in Synaptics' clickpad?

I have a Synaptics touchpad, with a 3 buttons clickpad (it is a ThinkPad X1 Carbon with physical buttons). Using xev, when I click the middle button I get the corresponding ButtonPress and ...
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37 views

Counteract X's -nocursor argument in a running server

I'm starting X on our media centre with the -nocursor argument. The cursor is still there, it's just invisible, which is what I want 99.9% of the time. However recently there have been times where ...
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464 views

How to enable SLI on Ubuntu 14.04?

I have a Lenovo Y510p Laptop with two gt755m graphics cards. I installed Ubuntu updated everything and installed the nvidia drivers. When i want to enable the SLI config in /etc/X11/xorg.conf then the ...
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38 views

Telling X to treat one screen as 2

I have a very large screen, which I'd like X to treat as 2 screens. That is, allow me to "maximize" a window to fill just one half, or to move a window to the other half. How can I do this?
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402 views

How to check and set Refresh Rate with Nvidia Graphics Card

When I tried to update from Ubuntu 12 to Ubuntu 14 I got a warning message against updating stating that your machine does not have 3D support for running the unity desktop environment. My graphics ...
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27 views

Is it possible to forward Windows… windows into Linux? (Like unity/seamless or xypher)

If this is a "bad question" or otherwise something you mods want to close... please at least direct me somewhere that could answer it, because that kind of thing happens to me a lot and I end up ...
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33 views

Can one X client have multiple window?

I would like to understand X Window System and its terminology. So I have several question: Can one X client have mutiple window? I think that it can but I am not sure. What is relation between ...
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346 views

Ubuntu 14.04 on Dell XPS L701X with GeForce GT 435M - Low Resolution

Moving from Ubuntu 12.x to 14.04 (clean install, not an upgrade) I've ran into trouble I've never had before. Many times I've installed bumblebee with the proprietary nvidia drivers, but this time ...
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147 views

How to assign one X Screen to one LightDM seat?

I'm trying to configure a multiseat setup on a desktop PC with two keyboards two mice two monitors attached to the same graphics card (Nvidia NVS 310) Using these instructions I managed to make ...
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207 views

synaptics driver not workin with new kernel?

after I upgraded from kernel 3.13.0-29 my synaptics driver seems to stopped working. basic touchpad functions still work (this includes moving cursor and clicking) but no right click nor middle click ...
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229 views

Dual-monitor seems to be default in Ubuntu 14.04, and I try to solve it, but close the wrong monitor

I'm using Ubuntu 14.04 LTS. My mouse goes outside the screen when moving to the right edge, so I guess something wrong with my monitor setting. lt seemed that "dual monitor" was set as default ...
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285 views

Duplicated desktop, ubuntu 14.04 in VMWare

I am operating Ubuntu 14.04 through VMWare Player version 6.0.3 on a Windows 7 OS. Yesterday, I installed GIMP through the Ubuntu software center. After opening a couple of jpegs to do some simple ...
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105 views

Run virtualbox in other X session

I'm running ubuntu on my laptop (host). Inside ubuntu, there is running one instance of virtualbox. (where is installed MS Windows). My idea is to run virtualbox in separate X session (something like ...
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138 views

Dual Monitor resolution doesn't work.

So here's the thing, you are my last resort, I have tried a lot of things before asking you for help, well not a lot, just two I think but I don't know that much so it's hard for me to change ...
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2k views

W540 + 14.04 + nvidia driver = no work

there's a strange problem I cannot solve: there are two Lenovo W540 (A) and (B). W540 has two graphics chips: intel and nvidia Quadro K1100M. There is no bios setting to disable intel, and/or only ...
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268 views

Toshiba satellite L755 nvidia resolution + boot problem

I don't have alot of experience in linux, I tried all the solution I could find before asking this, here it goes: I recently got a new Toshiba laptop, today I installed ubuntu 14.04LTS alongside of ...
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478 views

nvidia driver problems with EDID

I have EDID problems with proprietary NVIDIA drivers in Ubuntu 14.04. I have a Lenovo Y470 with dual NVIDIA/Intel graphics card. The resolution of the screen is 1366x768. I have tried drivers the ...
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176 views

Nvidia layout inconsistencies when saving to x configuration file (Ubuntu 14.04)

I am having trouble saving to the x config file from the nvidia x server settings. When I click the "Save to X Configuration File" button, I get "The current layout has some inconsistencies". Under ...
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175 views

Cant get full resolution on Second monitor with nvdia geforce 210 on 14.04

I am using two Samsung 1920x1080 monitors with my Ubuntu 14.04 machine having an nvdia geforce 210 graphic card. The first monitor is connected to the VGA port and the second monitot to the DVI port ...
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650 views

ubuntu 14.04 - can't open display / could not open X display - Nvidia ( all versions)

I have serious issues since I installed 14.04 on my machine.My graphics card is Nvidia geforce GTX 680. I have double Xeon processors machine. On previous Ubuntu 12.04 it worked nicely. I've tried ...
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275 views

LCD display connected on LVDS not working

I'm trying to run Ubuntu Server 14.04 on a Intel N2600 Board with a 7" LCD panel connected through LVDS connector. I successfully installed Ubuntu Server and I have installed also xorg and openbox ...
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56 views

X11 cannot write .ICEauthority file on a vmhgfs partition

I am running Ubuntu 12.04.4 in a virtual machine using VMWare Fusion. I changed my home folder so that it is shared with the host OS. I.e. /home/<user> is now mounted automatically at boot time ...
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127 views

Desktop not appearing after a change in xorg.conf

I tried to install nvidia-current on my Ubuntu 12.04 because I didn't have the driver for it but it seemed that had no effect so I removed. After that, I don't remember anymore, I tried to configure ...
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31 views

NVidia screen config

How do I restore the display config to the one I got during installation? I'm running Ubuntu 14.04 with dual nvidia gtx 570 connected to two screens. When I installed ubuntu at first I ran 13.10 ...
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181 views

Can't get monitor image back on after toggling monitor power button

When I toggle monitor power off and on again - it doesn't come back to desktop. I see blank screen instead. Interestingly - if I type Ctrl + Alt +F1 - I can get into terminal and then I can get back ...
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69 views

Desktop will not load for specific user

I'm fairly new to Ubuntu. Last time I played with it a bit was Jaunty. Now I have just built a 14.04 Trusty File Server and added the Ubuntu Desktop to make some management tasks easier. I was using ...
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445 views

Does 14.04 use xorg.conf or ~/.config/monitors.xml?

If I have both files /etc/X11/xorg.conf and ~/.config/monitors.xml, which one will take precedence??
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26 views

X.Org and Xserver development headers issue

Trying to install SDL2, following the guide here. I've tried this before, and it's destroyed my laptop several times already, because one of the packages (x.org-dev) replaces a lot of packages, and ...
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61 views

Wallpaper and Unity UI text smears

I have the same problem as in this previously asked and not answered question: What may cause the desktop wallpaper to be scrambled? Here are some of the recommended cli commands to post here: sudo ...
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188 views

Xserver crashes while turning on the second screen with new nvidia driver on 14.04

I have recently updated Kubuntu to 14.04 and installed new nvidia drivers for my GT 630m (optimus). After upgrade my second display connected over HDMI with DVI adapter was turned off, so I tried to ...
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288 views

Ubuntu keeps enabling panning and tracking for dual monitor setup

I have two monitors connected to my box (nvidia graphics with proprietary driver). Everything was fine until I updated to saucy (not using default ubuntu desktop but xfce). After the update the ...
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123 views

Full Screen / Maximize Top Edge Action only works on main monitor (Dual Monitor Setup) Compiz

Certain applications that I have (terminal, NVIDIA XServer settings, and a few others) will go full screen properly-that is, whatever monitor I am viewing the application window in, if I drag it up to ...
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286 views

Edit color profile (.icc) to change gamma

As a lot of other users here on Ask Ubuntu, I need to use xrandr to correct the gamma settings on one of my external monitors. Settings applied this way aren't permanent and they can reset basically ...
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291 views

I killed XBMCbuntu video output - Help

I am pretty new to ubuntu and I am experiencing a problem that hopefully someone can help me with. I have a HP N54L server that I have had XBMCbuntu running on for about 12 months now. I have a radeon ...
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214 views

Can someone please verify my new 10-monitor.conf set up? 12.04

I'm working on getting X to recognize my DisplayLink Adapter. I have an onboard Intel HD 3000 chipset. Here is the uldfb: lloydm@lloydm-E6320:~$ dmesg | grep -i udlfb [20006.928772] udlfb: ...
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179 views

How do I adjust DPI in 12.04

I think that I want (need?) to adjust my DPI. Qualitatively, text is very small and I usually find myself increasing text size in text editors, web browsers, etc. Quantitatively: The 1" square here ...
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606 views

NVIDIA drivers not working with more recent Ubuntu releases

I have a late 2012/early 2013 iMac with the following graphics card (lspci) 01:00.0 VGA compatible controller: NVIDIA Corporation GK107M [GeForce GT 640M Mac Edition] (rev a1) I have tried the ...
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264 views

Ubuntu 13.10 and Nvidia. Second Monitor causes graphics settings to reset

I'm trying to get a second monitor on my laptop, plugged in through HDMI. I can get the second screen to be detected and display stuff, but every minute or two the graphics will freak out, both ...
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29 views

Enable repeat for a specific key

My ↓ key has died tonight. While waiting for a new keyboard, I am using the answer here to map the right Ctrl (key code 105) so that it acts as ↓: How do I remap certain keys or devices? Long story ...
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132 views

How to do off-screen render with OpenGL in Ubuntu with XServer?

I have an application that uses OpenGL 4.2 to do off-screen render [the result goes to a video in my case]. I need to run it on Ubuntu 13.10 Server. I don't need (and don't want) to have the actual ...
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1k views

How do I resolve desktop larger than screen?

EDIT - The file is being saved to the desktop but is being placed in the region above DVI-I-1, i.e. the bit that is described by +0+261 offset. Temporary solution is just to align monitors along the ...
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63 views

Nividia Temprature in 13.10 so high

i had prpblem with the laptop tempreature with ubuntu 13.10 and Nvidia card NVS500M after searching i found i can add the following line to the xorg.conf Option "RegistryDwords" ...