xserver

I have minimal Ubuntu installation in my container and I want to have Xserver running. I need XServer, because my app requires meshlabserver, which itself needs Xserver. I installed xserver-xorg and all other packages, but when I try to start X in container via /usr/bin/X :0 it says: Fatal server error: (EE) xf86OpenConsole: Cannot open /dev/tty0 (No such file or directory) What am I doing wrong? How do I start X server? UPDATE: related question: Host screen turns off when I start X server in docker container In my case it works nicely when I start container in privileged mode: docker run -

When I'm editing XML files in Eclipse (mainly, Android layouts and so), it causes leaks on XServer and it ends eating all my RAM (4GB), so I have to Ctrl+Alt+Backspace to continue. Do you know any remedy for that? Eclipse Juno and ADT v20 seem to be working well. It might help if you start eclipse off your java interpreter with a garbage collector enabled via the command line. Something like this could work: java /path/to/eclipse -XX:+UseParallelGC You could also add some swap space to your computer as a final option, but of course that's one step above asking you to go out and buy more ram.

I want to get screenshots of a webpage in Python. For this I am using http://github.com/AdamN/python-webkit2png/ . newArgs = ["xvfb-run", "--server-args=-screen 0, 640x480x24", sys.argv[0]] for i in range(1, len(sys.argv)): if sys.argv[i] not in ["-x", "--xvfb"]: newArgs.append(sys.argv[i]) logging.debug("Executing %s" % " ".join(newArgs)) os.execvp(newArgs[0], newArgs) Basically calls xvfb-run with the correct args. But man xvfb says: Note that the demo X clients used in the above examples will not exit on their own, so they will have to be killed before xvfb-run will exit. So that means that

I created docker container with X server inside. I use it for some off-screen OpenGL rendering. This container should work on any system (with or without X server running) and it should use hardware GPU if it exists (so I cannot use xvfb). When I use this container on server-like system without GUI, everything works perfectly. But when I run the container on Ubuntu 14.04 Desktop, the screen turns off each time I start X server in my container. I start container with --priviliged so /dev folder is shared with container. I believe it involves some kind of conflict. Is there a way to start X

I'm running R-shiny (R version 3.0.1 (2013-05-16)) on a VM (Red Hat Enterprise Linux Server release 6.4). Everything works, i.e., server starts up, and application runs etc... as long as I don't try to plot a graph renderPlot I then see on the main panel a message [error : unable to start device png]. I would post my whole code but this problem I think has to do with rendering plots as when I use renderText and spit out some data it works just fine. Actually when I just type in png() in R I get this error [ Error in .External2(C_X11, paste("png::", filename, sep = ""), g$width, : unable to

I'm writing some watir test cases: browser.goto "http://egauge2592.egaug.es/" browser.link(:href,"/settings.html").click browser.text_field(:index,4).set("some text") browser.button(:id,"save_button").click then a 'Authentication Required' dialogue opens, asking for username and password . No matter how I tried, I couldn't access the text fields. I tried send_keys and JavaScript. I also tried Watir.autoit but it says undefined method. I'm using watir on a Ubuntu machine with the FireFox browser. How to fill in username and password fields of that dialogue box? I was able to enter username with

If I wanted to write a C program to talk to an X server on Linux and produce the simplest possible visual result, e.g. setting a single pixel on the display, how would I do it? I want to use as few libraries as possible, to understand it from the ground up, no matter how inefficient/messy the code is. Update - by "without a library", I mean basically without any of the helper libraries that are available for X, and without a graphics toolkit. Update - the answer is "through a unix socket", specifically /tmp/.X11-unix/X0 (on this machine at least, presumably for display 0). Actually drawing a

And if so why? What does X do for me beyond piping my rendering commands to the graphics card driver? I'm not clear on the relationship X - OpenGL. I've searched the internet but couldn't find a concise answer. If it matters, assuming a minimal modern distribution, like a headless Ubuntu 13 machine. datenwolf With the current drivers: Yes. And if so why? Because the X server is the host for the actual graphics driver talking to the GPU. At the moment Linux GPU drivers require a X server that gives them an environment to live in and a channel to the kernel interfaces to talk through with the