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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Undefined reference to XLib functions when linking

I am attempting to build an old project which requires XLib functions. However, I am getting the following linking errors (plus many more): //usr/local/lib/libgdk.so: undefined reference to ...
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15 views

Replace screen colors

Is it possible to replace colors on my screen? I want to search for colors close to white (#FFFFFF) and replace it with something darker like a light grey. My current setup is Ubuntu 14.04, XFCE, ...
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1answer
19 views

installing Nvidia NVS 3100M driver fails, what am I missing?

running Kubuntu 14.04 in Oracle virtual box 5.0 on Dell (Windows 7) E6410 laptop. I've installed DKMS & guest additions. I can get better resolution now. But I assume for performance I need to ...
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0answers
9 views

Applications unreliably gaining focus on mouse click in Kubuntu 15.04

I recently upgraded to Kunbutu 15.04 and am having a problem where windows are not reliably gaining focus when I click on them. For instance, when switching to using PyDev, I often need to click ...
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1answer
12 views

How do I map a mouse's scroll wheel to up and down array keys in Ubuntu Server?

I'd like to scroll through previous commands or scroll through a text editor with the scroll wheel. I don't know how to do this without starting a full-blown X Window System.
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57 views

Unable to use my 4k monitor at maximum resolution when used with one or two others FHD monitors

I would like to use my 40" 4k monitor (Philips BDM4065UC) alongside with two others WUXGA monitors (Dell U2412M). I can successfully run : my main 4k alone at 3840x2160@60Hz, or my main 4k at ...
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15 views

Slow application switching - Ubuntu 14.04 - XORG CPU spike

I am currently experiencing some infuriating lag/sluggishness with Ubuntu 14.04 when doing relatively trivial, undemanding work across a few basic applications (Chrome, Mudlet, Sublime Text 3, and the ...
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10 views

2 users logged-in, it makes 2 graphic virtual terminals, only first one has TouchPad

please, I can't get googled it up. On my laptop dell 17r 5737 I have installed trusty with all upgrades and dist-upgrades. We have two user accounts. When we are both logged in, only the first one ...
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22 views

Which driver is best suited for the tank and what do i do in case of another breakdown

I'm using a ASUS X550LN Intel® Core™ i5-4210U CPU @ 1.70GHz × 4 Ubuntu 14.04.2 x64 4GB I had a problem identifying my Nvidia card , so I added the xorg edgers repository and updated as usual. ...
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1answer
25 views

How to remove graphics driver

recently i turned over to Linux from Windows . There was a problem because Linux wouldn't show my Nvdia GPU with the lscpi command i would only get my VGA as intel chipset . After that and a little ...
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21 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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1answer
22 views

Cannot Edit xorg.conf (permissions)

I want to edit the /etc/X11/xorg.conf file but I can't save the file. It says "permission denied." I have tried: username@ubuntu:/etc/X11$ sudo gedit xorg.conf to no avail as i recieved: ...
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1answer
31 views

Possible to run graphical sessions on multiple TTYs?

On a default Ubuntu (15.04) installation, We have 7 TTYs that we can switch with Ctrl+Alt+F [1-7], where TTY1-6 are terminals and TTY7 is the graphical X session. I would like to have more than one ...
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0answers
47 views

Alienware 13 touchpad not working under any distro [DLL068B:00 06CB:76E9] [hid-rmi]

Well, as the title explains that's my problem, I'm using 3.18 kernel, and this are my thoughts: First of all the touchpad wasn't showing up in xinput while I was expecting something like: ⎜ ↳ PS/2 ...
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1answer
76 views

CUDA on laptop with 14.04

I have a question about CUDA on a Laptop with Ubuntu 14.04. I am trying to make CUDA work on my computer and after 7 formats and about 36 hours I am out of any ideas. My problem is, whenever I try to ...
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0answers
16 views

Compiz problem no desktop

I was viewing Compiz settings and after changing the display setting I lost my desktop dock and menu. I rebooted the system and now I have no desktop. Can some one guide me how to fix this?
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1answer
24 views

Xorg configuration for additional monitor

I've been struggling to get a third screen working which stopped after changing the monitor (previously this did work on USB displayLink). I had EDID errors on startup so now have generated my own ...
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20 views

No HDMI output Nvidia 331 driver

I've had a long running battle trying to get dual external monitor outputs from my 14.04 system. One monitor is VGA, the other is HDMI. Specifically, I get no HDMI video signal, but Ubuntu knows I ...
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1answer
73 views

Graphics (geeqie) slow after 15.04 upgrade

I upgraded an IBM Thinkpad T440p from 14.10 to 15.04 the other day. I am noticing that full-screen image viewing is really slow. For geeqie to paint the screen (of a 1920x1080 external monitor) with a ...
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2answers
90 views

How do I get Ubuntu / Nvidia GeForce 8400GS to correctly recognize two identical monitors?

Thank you all for the help so far, I think I'm stuck trying to edit or create a proper xorg.conf file that will give me a consistent display on start up. I have two identical monitors - Samsung ...
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1answer
22 views

How to install NS 2.35 on ubuntu 14.04?

I tried to install ns-2.35 on ubuntu 14.04.But I am getting problem like this In file included from /home/mouli/ns-allinone-2.35/tk8.5.10/unix/../generic/tkInt.h:19:0, from ...
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0answers
38 views

Cannot login after routine software update 14.04

I did some (i thought routine) updates. Now I cannot login from the GUI, also the resolution of the login screen is messed up (I have a new NVIDIA card). I searched and tried the options. Changed ...
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0answers
21 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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2answers
100 views

error: Cannot autolaunch D-Bus without X11 $DISPLAY

I urgently need to reset Compiz to its default settings because my desktop doesn't show the Dash or menu bar. When I type: dconf reset -f /org/compiz/ It says: error: Cannot autolaunch D-Bus ...
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1answer
59 views

Unable to switch to Nvidia 331 graphics driver

I'm trying to get HDMI video output working in Ubuntu 14.04 LTS, which I've not had any luck with so far. So I installed the proprietary Nvidia 331 driver. However the system still appears to be ...
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1answer
13 views

Conditonal in xorg.conf?

I have a laptop with a touchpad with physical buttons. The problem is that the physical buttons are part of the touchpad, so the cursor moves when you press them. Basically, what I want to do is get ...
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2answers
84 views

screen resolution 14.04

What's wrong with ubuntu? I've just upgraded my 12.04 to 14.04, and my screen resolution went to 1024x768. xorg.conf is nowhere to find. not under /etc, not under /usr/share. answers about changing ...
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0answers
36 views

xfce low graphics mode

I've installed xfce. Replacing unity and I've ran into what seems to be a common problem. I keep getting a low graphics setting. I am using an hp g62 with I believe a ATI Mobility Radeon HD 4250 ...
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1answer
53 views

ubuntu 15.04 wakeup from sleep : unclaimed register

I have Ubuntu 15.04 installed on Lenovo Z5070 laptop. For Nvidia 840m I have nvidia-346 installed. While waking up from sleep I get the following error on a black screen drm: hsw_uncalimed_reg_clear ...
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2answers
73 views

Why is screen turning black randomly?

I'm running Ubuntu 14.04 with xmonad on a relatively new retina MacBook Pro. During normal computing, my screen will turn black every once in a while. Moving the mouse, clicking, or pressing any key ...
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70 views

NVIDIA Screen Tearing Help

Just recently installed Kubuntu 15.04 onto my Precision M4800. Just trying to fix a few issues. I've spent ages trying to get the NVIDIA screen tearing to go away, however I am unsuccessful. Intel ...
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16 views

Screen pauses every 7 seconds with Radeon Open Source Drivers

This is a clean install of 14.04.02 on my HP Laptop. The laptop,a dv7-4045ea, has dual Radeon graphics cards a HD4200 and a HD5650 which cannot be controlled in the BIOS and cannot use fglrx drivers. ...
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0answers
30 views

xorg.conf configuration?

Sorry if this has been answered a billion times, but I have looked for quite some time and haven't come up with any solid info about this. I feel like I'm missing something obvious since nobody else ...
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0answers
18 views

Problem booting on the latest kernel (3.16.0-34)

I boot on linux kernel 3.16.0-34 atm. The machine just won't boot on later kernel versions. When I do, i get an error message on the desktop. I assume the reason I can't boot on the latest kernel is ...
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0answers
87 views

Ubuntu 14.04.2: Display area out of alignment

I have a display problem. My machine has a Radeon HD 4350 grafic card. My monitor is a TV flat screen, i. e. a Philips 22PFL3606H. I use the VGA input of my TV flat screen to display grafic ...
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0answers
21 views

Udev rules for USB mounting and Low Graphics Mode error

I have a file containing the content bellow KERNEL!="sd[a-z][0-9]", GOTO="media_by_label_auto_mount_end" # Import FS infos IMPORT{program}="/sbin/blkid -o udev -p %N" # Get a label if present, ...
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2answers
46 views

Black screen, only TTY available

I'm running Ubuntu 14.04 on the new Dell XPS13. I never needed a login, I was just able to boot and my desktop would show up. It doesn't anymore; I can still switch to TTY to get work done. What did ...
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17 views

Xorg CPU usages High

I am facing the issue with Xorg. My application is playing content in chrome browser. After some time some how xorg cpu usages reach to 90% and stop displaying the content. I tried couple of things ...
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0answers
71 views

Gtk-WARNING **: cannot open display: :0 Problem !

when i am using ' root ' , I can't run any **** -_- and that's what the terminal show as a problem I try many thinks like gksu , sudo .. , pkexec , ... but no solution No protocol specified ** ...
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2answers
135 views

Black screen - Can't reconfigure Xorg [duplicate]

I'm running Ubuntu 14.04 on a laptop with an nVidia 850m. I installed proprietary drivers and bumblebee and everything worked fine for weeks. After running a dist-upgrade I have a black screen on ...
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43 views

How to enable non working touchpad?

I can't set up touchpad driver. My notebook - ASUS X550L. It doesn't work! I go to mouse/touchpad, but touchpad tab isn't here. I try to install synaptic - nothing happens, manuals tell me to change ...
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0answers
62 views

How to prevent pausing unactive user session?

For a while now when I switch between two user sessions the inactive one in some cases will stop executing GUI processes. This way I'm forced waiting for another session to load and can't do something ...
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0answers
41 views

Xorg crashed with SIGSEGV — Grace Plotting — Ubuntu 14.04

I am experiencing crashing (black screen; sent back to login screen) after attempting to open several grace files (*.agr plots). I am also experiencing the same crashing with these files (if they ...
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36 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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37 views

Setting up teska K40 withATI radeon. End up with black screen while installation on ubuntu 14.04

For almost a week I can't set up Tesla K40 on CUDA. Currently I have 2 GPUs 1.Advanced Micro Devices, Inc. [AMD/ATI] Oland XT [Radeon HD 8670 / R5 340X / R7 250/350X] 2. Nvidia Tesla K40 active ...
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17 views

Fixing copied home directory and mir in ubuntu 15.04 (copied from 14.04)

I just installed Ubuntu 15.04 on my new Dell XPS 15" laptop. I then rsynced my old home directory from my old laptop now I can't run any gui applications. On the command line I see the error: "No ...
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1answer
84 views

Ubuntu 14.04 log-in fails, in VirtualBox, seems to be a libGL problem

Just installed 14.04.2 LTS i386 as a VirtualBox VM, on a Windows 7 host with AMD 64 processor. Then, I could not log in normally. It accepts my username & pswd, thinks a while, then resets the ...
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102 views

After upgrade to 15.04 screen resolution stuck at low graphics

I was running 12.04 32bit on an old Asus laptop with ATI X1200 graphics and upgraded stepwise to 15.04. Somewhere along the way the graphics got stuck at low resolution. The upgraded system uses the ...
3
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1answer
55 views

Xorg does not show up in ps aux?

Doing ps aux on tty1 does not list Xorg as a process, but commands like killall Xorg work fine. Why does ps not list Xorg?
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57 views

14.04 gives blank screen/not waking up after sleep (Lenovo Z510)

I tried all of 3 driver settings(Nvidias, Xorg), and tried lots of things(even reinstalled Ubuntu) but still facing with this problem. After reinstall, at my first suspend try, after wake up it gave ...