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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191
votes
40answers
560k views

How to fix “The system is running in low-graphics mode” error?

Note: This is an attempt to create a canonical question that covers all instances of "low-graphics mode" error that occurs to a user, including but not limited to installation of wrong ...
162
votes
6answers
158k views

How do I remap certain keys or devices?

I'm searching for a way to remap certain keys in ubuntu. i.e. I'd like to change PgUp to Home or PgDown to End. Does a built-in command or a tool exist reassign keys in Ubuntu/GNOME?
30
votes
10answers
72k views

Radeon HD 2000, 3000, 4000 on Ubuntu 12.04.2 and higher: fglrx (legacy) unsupported, what to do?

After upgrading to 12.10 quantal, the packaged version of fglrx no longer works. I discovered that this is because there is a separate 'legacy' fglrx driver for the HD 2k-4k series cards, but it is ...
77
votes
7answers
322k views

Where is the X.org config file? How do I configure X there?

As Ubuntu 10.10 seems to neither detect my graphics card (Intel 82852/855GM) automatically nor use the corresponding Intel driver even after manually installing it, I am looking into manually ...
19
votes
0answers
7k views

How well will Nvidia Optimus cards be supported in 12.04? [duplicate]

Possible Duplicate: How well do laptops with Nvidia Optimus work? Will Nvidia Optimus be supported in 12.04?It will be improvements in nvidia optimus drivers? Will no longer need bumblebee to ...
30
votes
5answers
52k views

Nvidia driver doesn't work in 12.10

I have GeForce GTX 560 Ti. I's worked fine in 12.04 with nvidia drivers. Unfortunately, after todays 12.10 update, something broke down. I've tried nvidia-current, nvidia-current-updates and nvidia-...
48
votes
3answers
76k views

Adapt Ubuntu to a high-DPI resolution screen

What are the steps you need to adapt Ubuntu on a fresh installed Laptop with a high resolution display? I have a display with 3200x1600px on only 11'' which is all realy tiny.
32
votes
7answers
101k views

NVIDIA drivers not working after upgrade. Why can I only see terminal?

Tonight I upgraded to 11.04. Problems. Once I had finished the upgrade, I restarted my computer as it told me too. When I got past the ubuntu 11.04 (purple background orange dots), it simply went to ...
26
votes
9answers
41k views

How to change mouse cursor and theme?

How can I change X11 cursor and theme in the newest Ubuntu? I can't find it. Please help.
2
votes
2answers
5k views

Can't use nvidia card/driver on optimus notebook

I installed (once again) the latest official nvidia driver for my GT540m on Ubuntu 11.10. Even though everything seems OK with my xorg.conf file (I've manually added BusID "PCI:1:0:0", since lspci ...
11
votes
4answers
48k views

How to install NVIDIA driver in Ubuntu

I'm running Ubuntu 13.04 on DELL XPS L501 - Nvidia GeForce GT 420M. I'm using kernel 3.9.0-030900-generic. All kernel-headers are installed in the system. and I've tried the following. Use apt-...
58
votes
1answer
46k views

What's the difference between the nvidia-current, and nvidia-current-updates packages?

What's the difference between the nvidia-current, and nvidia-current-updates packages? The former has a higher version number, and the description of the packages are the same. Which do I use? ...
27
votes
6answers
17k views

Is there a software utility to adjust screen gamma/brightness/contrast?

I use to work at night and it is eye-hurting to watch at lightbulb-bright screens (I've got two - laptop's built-in panel and an external 18-inch CRT) in a dark environment. So I adjust my screens to ...
9
votes
2answers
18k views

How to upgrade intel graphics package?

I have a Intel i7 laptop that does not show any resolution higher than 1280 x 1024. A little bit of research pointed me to a bug and subsequently to a fix. I have 11.10 currently installed. I want to ...
3
votes
2answers
5k views

Which nvidia driver from additional drivers option should I choose?

I have NVIDIA Geforece 7025 / nForce 630a integrated gfx card on my UBUNTU 12.04.And I have 4 options in Additional drivers: NVIDIA accelerated graphics driver (version 173) NVIDIA accelerated ...
98
votes
13answers
114k views

How to determine which window manager is running

Is there any way (such as a command or environmental variable) to determine what window manager is the one actively running in the current session?
43
votes
7answers
28k views

How do I fix fonts not rendering and missing letters?

I have a fresh installation of Ubuntu 14.10 on my laptop. It appears that letters are missing from files and folders, as well as menus and configuration windows. I'm not sure where to start in order ...
35
votes
6answers
310k views

How does one exit the X server?

The command sudo service gdm stop would successfully disable the X server in Ubuntu 11.04 temporarily. However, this same command no longer works in Ubuntu 11.10, because "gdm" is an "unrecognized ...
31
votes
7answers
40k views

Increasing scroll speed

I've recently switched to Ubuntu, and the one thing that has been bothering me is the scroll speed, which I can't seem to change. In windows I used to have it set around 7 lines, but it seem to be ...
4
votes
1answer
8k views

Experiencing major issues on graphic displays

Since installing Ubuntu 12.04, I am experiencing low performance on graphic programs, including video playbacks, etc. As I have checked the intel driver of mine is already at its latest version. It'...
19
votes
6answers
35k views

50-synaptics.conf options not working

How does Ubuntu come up with the default synaptics settings? I've got Ubuntu Netbook 10.10 installed on an Eeepc 900. Out of the box TapButton2 was set to 3, and TapButton3 was set to 2. I have ...
4
votes
6answers
30k views

Make xconf configuration permanent

I edited the xconf file, and added this line to device section: Enable brightness control=1 Now I am able to adjust brightness, but after every restart the brightness setting change back to 100%. ...
10
votes
7answers
25k 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 && ...
10
votes
3answers
91k views

How to make an xorg.conf file

I just installed Ubuntu 12.10 and I need to make a custom xorg.conf file. By default, there is not an xorg.conf file on my system. I know what I need to write in the config, but I just don't know how ...
21
votes
4answers
174k views

How to install X11/xorg?

My 12.04 x64 system won't boot into GUI, but I can still use virtual console with my own account, so apparently it's the Windows Management System that's causing it, how can I reinstall it from tty, ...
14
votes
4answers
15k views

Screen brightness isn't taking effect on a Lenovo Z570

My Lenovo Z570 has two GPU's, nVidia and Intell. Brightness control has no effect what so ever over the screen brightness, and because I've had some major issues in the past when I was trying to ...
13
votes
2answers
41k 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 ...
4
votes
2answers
39k views

Ubuntu 13.04 - installation Nvidia driver

I've installed Ubuntu 13.04 on my laptop HP 6720s with video card Intel 965 chipset Intel gma x3100. After the boot the classic purple screen appear and before the login page the screen become black ...
13
votes
3answers
12k 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 ...
7
votes
2answers
4k views

Where is the alternate installation ISO for Ubuntu Saucy?

I would like to download the alternate installation ISO for the current release, Ubuntu 13.10 Saucy Salamander, but I can't find it on the releases.ubuntu.com website. Aren't alternate ISOs provided ...
3
votes
1answer
4k views

Setting GPU fan speed using free ATI driver? [duplicate]

Is it possible to set the GPU fan speed using the default free ati driver? My card (X1900) was deprecated in the fglrx drivers a while back. The free drivers seem to work with 3D, Compiz and such, ...
0
votes
2answers
8k views

Where do I get a SIS mirage 672 vga driver?

I need to obtain a display adapter for SiS mirage +3 gpu (closed source), so I can run a stable system on Ubuntu. I need to find a driver for this adapter that is open source and gives completely ...
71
votes
20answers
47k views

How do I disable middle mouse button click paste?

Is there a way to disable the middle mouse button paste behavior that is here by default on gnome? I have a sensitive mouse wheel and whenever I scroll texts, sometimes it pastes stuff randomly into ...
21
votes
4answers
23k views

Turn off monitor using command line

I am runnning Ubuntu Server on my laptop. There is really no reason for the screen to be on. I have been trying to use this command to turn the screen off: sleep 1 && xset dpms force off ...
25
votes
2answers
10k views

Drawing over the desktop

I am wondering if there is anything similar to ink over apps for linux. i.e. , a program that allows me to draw over any other program given Xs architecture, it should be possible, but I looked for it ...
17
votes
3answers
11k views

Font corruption: lines through characters

I have a problem where a one-pixel high white line is displayed through certain letters of text. Almost always only a single character type is affected at once, and only in one font size (though that ...
10
votes
2answers
2k views

change gsettings without running X and Unity

I am trying to change some gconf settings in Ubuntu 12.10. I would like to change the lightdm greeter background. I have discovered that while logged in to unity as a user while running X server, I ...
9
votes
1answer
53k views

Xorg server configuration fail - no screens detected

I have a serious problem with Xorg server on ubuntu 12.04 (with nvidia 420M GT card). At home I am using an external monitor connected to my laptop's HDMI port - the external display is used as ...
6
votes
3answers
30k views

(update to 14.04) unity is not loading after I login to the admin profile after upgrade [duplicate]

After upgrading to 14.04 and after the final reboot, I logged in the admin account but unity won't start, I have only the 14.04 background. No shortcuts work. I can login and use the guest and other ...
13
votes
2answers
4k 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 ...
8
votes
1answer
27k views

How to make X.org listen to remote connections on port 6000?

This is on Ubuntu 10.10 (Maverick Meerkat) 64-bit desktop. I want to make my X server listen to remote connections from clients in other machines on the local network. I know about ssh -X and that is ...
142
votes
7answers
385k views

How to restart X Window Server from command line?

How can I restart X Window Server from the command line? I'd really like to be able to restart my GUI without having to do a full system reboot.
47
votes
6answers
63k views

How to change my mouse wheel scroll rate?

I'm using Chrome, and the scroll rate is like 3 lines, and it's painfully slow. My finger gets tired really quickly on long pages. System → Preferences → Mouse lacks any scroll wheel configuration ...
8
votes
2answers
10k views

How to make xinput settings persist after devices are unplugged, replugged, and after shutdown, restart, etc?

I successfully followed the answer to this question to set different sensitivities for my touchpad and my USB mouse. Only problem is, once you unplug and replug the device or shutdown, restart etc., ...
11
votes
6answers
11k views

Can't get nVidia drivers working with 16.04, logs out right after login

I have installed Ubuntu 16.04 beta 2 on Monday, Apr 18th. When I try to install nvidia-current, nvidia-361 or the version that jockey installs, either lightdm fails to start entirely or I can't get ...
13
votes
6answers
36k views

Configure mouse speed (not pointer acceleration!)

Is there way to increase the mouse speed in KDE4? I don't want any pointer acceleration, it's just the mouse speed that I want to change. Edit: Unfortunately, editing the xorg.conf is not an option ...
8
votes
3answers
24k 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 ...
11
votes
2answers
26k views

“You do not appear to be using the nvidia x server”(screenshot included)

I am running ubuntu 11.04 at my asus laptop. Laptop specs: CPU: i5-2410M @ 2,3GHz RAM: 4GB GPU: nvidia gforce GT 520M / (also the cpu has a bult-in graphics processor) I am getting this error when ...
8
votes
2answers
6k 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 ...
6
votes
1answer
6k views

Empty nvidia-settings after install v. 331.67 driver on Ubuntu 14.04?

I've followed this tutorial (with the following adjustments below) to install v. 331.67 nVidia driver. But get nvidia-settings (NVIDIA X Server Settings) empty... Then, before restart the PC, I make ...