x11

It seems like an simple problem, but I can't find the answer: How do you query (via X11) what monitors exist and their resolutions? Check out display macros and screen macros from the Xlib manual . Specifically: From the first link : ScreenCount() , ScreenOfDisplay() From the second link : WidthOfScreen() , HeightOfScreen() This might be helpfull for cli and scripting xwininfo -root But xRandR might be more accurate, especially, when there is multiple monitor environment: xrandr For modern X servers, there's also the XRandR extension, which provides the most up-to-date model of multi screen

Simple Question: Is there a way to resize a Xvfb display? I tried with RandR but it seems that the RandR extension is not supported by Xvfb. Are there other ways to resize the screen? Thanks for your help! edigu You can use the server-args command line argument to specify a custom resolution for the virtual frame buffer being created, but this does not change the resolution of an existing virtual frame buffer: xvfb-run --server-args="-screen 0, 1024x768x24" ... Most distributions now ship a version of Xvfb with randr support. The code as committed in late 2015 vfb: add randr support (v2) . To

I am using emacs-snapshot with the ssh.el package, following the instructions from the ess manual. There are a few ways to open an R session, but this is how I do it: open emacs C-x C-f /server:dir/file.R this puts me in ESS [S] mode Type 'plot(1)' C-c C-n to run emacs asks for starting directory, and I choose the /server:dir/ I would like for a figure to pop up but it wont. This also doesn't work when using ess-remote in shell or tramp mode, but it does work if I set the starting directory to my local desktop. Any advice much appreciated. My current workaround is to print the file to pdf and

I want my Python script to be able to copy and paste to/from the clipboard via x11 (so that it will work on Linux). Can anyone point me to specific resources I can look at, or the concepts I would have to master? Is this possible to do with the Python X library at http://python-xlib.sourceforge.net ? Cameron Laird I favor a Tkinter-based solution over one which requires pygtk, simply because of the potential the latter has for installation challenges. Given this, my recommendation to Alvin Smith is to read: Tkinter Clipboard Access Cut & Paste Text Between Tkinter Widgets Tkinter-based

I installed Genymotion on openSUSE Leap 42.1 and don't have success to execute. I'm getting the following error: genymotion/genymotion: symbol lookup error: /usr/lib64/libX11.so.6: undefined symbol: xcb_wait_for_reply64 I have no idea what may have caused the problem. Anyone else seen this? To solve this problem, navigate to extracted folder (/opt/genymobile/genymotion in my case) and remove the libxcb.so.1 file. In my case i had to remove to files: libxcb.so.1 and libdrm.so.2. I'm using Kali Rolling. In my case, I'm using Debian Stretch, I had to remove from the genymotion directory the

I am trying to create a Linux application - a screensaver, in this case - and it is proving remarkably difficult to find information on the simple task of making a window full-screen. Even the code of existing screensavers makes no mention of how they manage it, and I've yet to see any obvious function like XRemoveDecoration() . After much fumbling around, I did manage to create a window that's the same size as the desktop, with this: Window win = DefaultRootWindow(disp); XWindowAttributes getWinAttr; XGetWindowAttributes(disp, win, &getWinAttr); win = XCreateWindow(disp, win, 0, 0, getWinAttr