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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11
votes
2answers
3k views

How can I start a different X session on tty8?

Let's say, for an example, I want to run a full-screen opengl application on tty8 and have my standard GNOME desktop on tty7. How can I configure Ubuntu to meet my requirements?
11
votes
4answers
325 views

Is there a way to see the text of tty7 without shutting down Xorg?

Is there a way to see the text of tty7 without shutting down Xorg, just like switching to another tty?
10
votes
4answers
12k 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 ...
10
votes
3answers
26k views

How to install Intel 82852/855GM driver?

When I installed Arch Linux, it detected my video card and monitors correctly "out-of-the box". Now I've installed Ubuntu 10.10 "Maverick Meerkat" and it has not. How do I configure Ubuntu to use ...
10
votes
6answers
9k views

Why isn't my monitor's native resolution appearing as an option? [closed]

I'm on a clean install of Ubuntu 10.04 LTS. My monitor's native resolution is 1280x1024. However, in the Monitor Preferences application, I am only presented with 640x480 and 800x600 as options. My ...
10
votes
2answers
3k views

How can a script detect a user's idle time?

I want to check, inside a bash script (*), how long the user of a X session has been idle. The user himself does not have to be using bash, but just X. If the user just moved the mouse, for example, ...
10
votes
3answers
25k views

How do I disable intel graphics in a hybrid graphics setup?

I have a Dell Vostro 3700 version A10. The relevant bits from lspci -v | grep VGA are: 00:02.0 VGA compatible controller: Intel Corporation Core Processor Integrated Graphics Controller (rev 18) ...
10
votes
2answers
701 views

What is the X server?

I have been using Ubuntu for quite some time but, I have no idea what the X server is? I hear it quite often. I would like to know what the X Server is and what it does. How ~/.xinitrc file is used ...
10
votes
2answers
7k views

How do I prevent .xsession-errors from eating disk space?

Is there any way to completely disable the .xsession-errors file? I have it as a symlink to /tmp so that my laptop hard disk can (hopefully) go to sleep for once, but at least 95% of the stuff in the ...
10
votes
2answers
4k views

Extend Desktop to Monitor over LAN

I want to make use of an old laptop by extending my the desktop from my main PC onto the monitor of this other, old laptop over a LAN connection. I've looked into Xdmx/dmx, but the project seems to ...
10
votes
4answers
23k views

How do I use a DisplayLink monitor?

I'm trying to connect an external monitor to my laptop via a DisplayLink USB adapter. When I plug in the USB cable, the screen turns bright green. This apparently indicates that the udflib displaylink ...
10
votes
1answer
624 views

How can I get my monitor's maximum resolution without the proprietary AMD graphic driver installed?

I am using Ubuntu 14.04. I have an AMD Radeon 5570 HD graphic card. Actually, the default open source REDWOOD drivers aren't allowing me to choose my monitor's maximum screen resolution(which is 1366 ...
10
votes
2answers
23k views

Nvidia driver installed successfully, but not activated

My Ubuntu 12.04 only shows up black screen when starting up some days ago suddenly. Since I can desktop through recovery mode (resume in recovery mode, and the resolution is wrong), I believe there's ...
10
votes
1answer
1k views

Dual screens with one workspace on each?

I have a dual screen, compiz-fusion and i don't have a NVDIA/ATI graphic card and i use ubuntu 10.10. i currently use the two monitors: the desktop is stretched across monitors and i can drag an ...
10
votes
1answer
992 views

How to trigger a color inversion effect for one window?

I want to have an inverse color effect (light to dark) like 'negative' in compiz, but without compiz, and only for one window (like compiz's Super+N) . Is there a way to get a similar effect ...
10
votes
5answers
1k views

Why does switching users completely hang my system every time?

I have a fresh install of 11.04 64bit, with 2 administrator accounts and 4 normal accounts. The 4 normal accounts (the kids' accounts) don't have passwords, they can login simply by clicking on ...
10
votes
0answers
33k views

Ubuntu 13.10 - Black screen after login session [duplicate]

Yesterday, the system asked me if I wanted to upgrade to 13.10 from 13.04. Since that was the first time for me, I decided to proceed and ran the installation without worrying about it. After the ...
10
votes
5answers
439 views

One monitor getting spilled over into other monitor: how to do a 100% reset of gnome graphics configuration

I had to kill a VMWare process and afterwards, my monitor's configuration is buggy. I have 2 monitors in a side-by-side configuration. My right-hand monitor is the secondary monitor. Upon its ...
10
votes
0answers
19k views

How do I fix “Ubuntu is running in low-graphics mode?” [duplicate]

Possible Duplicate: How to fix “The system is running in low-graphics mode” error? First off, I'm running Ubuntu 10.04 on a 30gb partition, the rest of my hdd is for a vista partition. The ...
9
votes
7answers
14k views

After apt-get upgrade system always boot to low-graphics mode

Some time ago I have installed xorg edgers nvidia 331 drivers for my Nvidia 420M with Ubuntu 13.10. Today I have run like always sudo apt-get update && sudo apt-get upgrade -y && ...
9
votes
5answers
6k views

How can I toggle between single and dual monitor setup?

I have two monitors working just right with nvidia driver. There are times, however, where I want to have just one monitor and other times where I need two: I must open NVidia XServer Settings, go to ...
9
votes
3answers
6k views

How to run multiple user X sessions on the same computer, at the same time?

I want to have more than one user logged on at the same time, on the same computer. Each user should have a full GUI X session... It's easy enough to log in to multiple concurrent non-X linux ...
9
votes
6answers
2k views

Will Wayland have network transparency?

The Xorg server/client architecture allows for network transparency which means it is possible to start x-clients on a remote machine and display the GUI on the local machine (i.e. via x-forwarding by ...
9
votes
1answer
6k 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 ...
9
votes
3answers
19k views

How do I set the correct monitor resolution with Nvidia drivers for a monitor that does not send EDID?

I keep having trouble getting the correct monitor resolution - every time I reinstall, I happen to use a newer Ubuntu release and the old tricks I used to know no longer work. Instead of leaving a ...
9
votes
2answers
3k views

How can I change my keyboard layout to a modified version?

Now, my goal is to change the keyboard layout for the entire xubuntu install to my own modded version. I think the way to do this is to make an X11 keymap and load it - but as always there is a ...
9
votes
4answers
4k views

How do I get a 4k monitor on DisplayPort 1.2 to show as one screen?

I've just picked up a UP2414Q and I've connected it via displayport 1.2 which runs 60hz. The issue is that it ends up showing X two screens, well kind of, so that I end up with it acting as if I've ...
9
votes
3answers
4k views

How to get Lilliput USB monitor working?

Okay, I just got a Lilliput 7" USB Monitor: Unfortunately, I am having some trouble getting it to work in Ubuntu. It is a DisplayLink device, so it should work in Ubuntu. Here is the output of ...
9
votes
1answer
992 views

Is there a ubuntu supported X.org alternative (i.e. with security in mind)?

question (what I am looking for?) I am looking for alternatives to X.org, which is the most often used X-Server in linux' graphic systems today (which means also in Ubuntu). Do you know some ...
9
votes
2answers
1k views

Application-specific key combination remapping?

I'm aware of a number of ways of remapping key combinations in Ubuntu on a global basis (e.g., globally remapping Ctrl+S to send Ctrl+D or something), such as the xbindkeys application. What I need, ...
9
votes
1answer
1k views

Use local button styles during forwarded X11 session over SSH

Is it at all possible to have a forwarded X11 session be styled with something other than the default X button styles? It doesn't even appear to use my server's actual styles seeing as both computers ...
9
votes
0answers
7k views

Where is /etc/X11/xorg.conf? [duplicate]

Possible Duplicate: Where is the X.org config file? How do I configure X there? Where is the xorg.conf file in Ubuntu 10.04? I couldn't find it in /etc/X11/xorg.conf
8
votes
4answers
4k views

Cannot get past login screen

I have lubuntu 12.04, and it was working fine until I installed something and I do not remember exactly what I installed because I was trying to build a ruby gem and it required a lot. now I rebooted ...
8
votes
1answer
436 views

Is there a simple, safe way to trigger a GPU lockup on a susceptible computer?

Answers to my previous question, Ubuntu 12.04 froze, requiring powercycle. What should I look / grep for in the logs?, have led me to suspect that my computer is experiencing an intermittent GPU ...
8
votes
2answers
5k views

Triple-head on a Lenovo T520

Lenovo T520 with integrated Intel HD graphics + a NVidia card (Optimus) Ubuntu 11.10 on the computer. I would like to use the built-in screen plus two external screens. This PDF indicates that it is ...
8
votes
4answers
2k views

How to set up Ubuntu to automatically turn NumLock on when an external keyboard is attached and off when it is not?

Having NumLock on is convenient when using a full-sized external keyboard (having a keypad) and very inconvenient when using laptop's built-in keyboard (which places digits instead of letters on the ...
8
votes
1answer
7k views

list existing X display names?

How do I get a list of current X display names? Apart from being a useful thing to know, I want this so that (hopefully!) I can use xcalib -invert -alter as suggested in this question to invert the ...
8
votes
3answers
5k views

Simple switching between multiple monitor configurations

Context I use Ubuntu 11.04 on a laptop. I have three monitor configurations: Work: disable laptop monitor, use external 1920 X 1200 monitor Home: disable laptop monitor, use external 1680 x 1050 ...
8
votes
2answers
408 views

Setting different keypress rate for individual keys?

I'd like an especially high repeat rate and low delay on my backspace key, but a regular delay and rate on every other key. This command works, but sets it for every key: xset r rate 120 30 Is ...
8
votes
2answers
5k views

I cannot set up dual monitors to work with 11.10 using amdcccle 11.9

I've installed the ati catalyst drivers 11.9 manually because the default ones don't work with gnome-shell. But when that I try to change the settings in amdcccle(adminstrative) to use multi-display, ...
8
votes
1answer
14k views

How do I create the .Xauthority file?

I don't have a .Xauthority file in my home folder. I want to create it, please tell me the steps to do so in ubuntu 10.10. Thank You!
8
votes
4answers
396 views

My graphic drivers are gone

I am on Xubuntu 13.10 64 bit. This question tells you everything you need to know about my graphic card. Yesterday I had a problem, my graphic card driver failed, now if I login to xubuntu default ...
8
votes
2answers
2k views

Automatically change resolution when connecting an external monitor, nvidia driver

I run ubuntu on my macbook pro, with nvidia proprietary driver. I've made a little hack script http://www.coldcode.net/2010/05/nvidia-auto-display.html which detects the presence/absence of an ...
8
votes
1answer
380 views

Resolution changes after startup/login

I have been trying to use Gnome 3.8 / 3.10 / 3.12 since Ubuntu Gnome 13.10 and no matter what I do it changes the screen resolution to 720p, instead of 1080p, so I have to manually set 1080p every ...
8
votes
7answers
3k views

xorg.conf changes from nvidia-setting have no effect after reboot

I have upgraded from 13.04 to 13.10 today and everything works smooth apart from one thing. I have a dual monitor setup and every time reboot the screens have switched places (left screen on right ...
8
votes
1answer
3k views

Xorg.conf (nvidia) Second Monitor getting settings of first

I've been spending the weekend (and some time before that) trying to set up my Korean QHD270 and Benq G2222HDL monitors with Ubuntu 13.10. With the nouveau drivers install both monitor function ...
8
votes
1answer
470 views

How to enable overscan compensation in the i915 driver?

Does the i915 driver support "overscan compensation"? If so, how can I enable it? EDIT: Or is there any other driver for Intel's HD4000 graphic that supports "overscan compensation"?
8
votes
2answers
1k views

How can I know if my pc has the right drivers?

I'm new to linux, I got myself an Ubuntu 10.04 I think that the audio drivers aren't working well, since the sound is not as good as before (on windows). I also think the graphic drivers aren't ...
8
votes
3answers
1k views

How do I get switchable graphics to work on my Samsung RF711 With Intel HD & GeForce 540M Graphics cards on Ubuntu 14.04 LTS

I have an Samsung RF711 Intel Core i7 laptop, running Ubuntu 14.04 LTS 64 bit. This comes with two graphics cards - the Intel one (which runs by default) and an Nvidia GeForce GT 540M (which I have ...
7
votes
2answers
359 views

How can I toggle the touchpad depending on whether a mouse is connected?

I want to have my touchpad disabled automatically when an external mouse is connected and enabled when there is none. I have tried using touchpad-indicator but that fails in cases when the computer ...