On Xubuntu 18.04 I'm using hotkey right Ctrl for switching keyboard layout. And now I can't use any combinations with Ctrl+ in applications.  And for example if I use Alt for switching layout, combinations Alt+F4, Alt+Tab also doesn't work.  How to fix this?  Update. Solutions for Ubuntu Gnome and Ubuntu Mate don't work here. I can't add second hotkey for switching layout in Xubuntu/xfce.
Can I use Ctrl+Shift for changing languages? I can't set this hotkey for changing keyboard languages.  At this moment Alt+Shift switch languages, but I can't see this hotkey in keyboard hotkeys list or in   gsettings list-recursively  org.gnome.desktop.wm.keybindings | sort | more   output.
How to fix sculpting ridges? I ran into a problem I have never seen before and that is when I try to sculpt on a mesh, it sculpts like this:  Instead of this: I am using dyntopo with these settings:   I feel like theres a very obvious solution to this, but I have no idea what it is. When to choose checked and unchecked exceptions In Java (or any other language with checked exceptions), when creating your own exception class, how do you decide whether it should be checked or unchecked?  My instinct is to say that a checked exception would be called for in cases where the caller might be able to recover in some productive way, where as an unchecked exception would be more for unrecoverable cases, but I'd be interested in other's thoughts. Cylindrical vs azimuthal symmetry How to run a scheduled job every 15 minutes? Using the salesforce GUI it seams impossible to schedule a job every 15 minutes. Or more than once a day. Transformation issue with SVG to GeoJSON conversion I have a vector image in SVG format. (without georeferences)    I am trying to display it using OpenLayers to display properties of different polygons in it.  I tried converting it to GeoJSON but the resulting render appears to be stretched (ratios are not preserved).  Is there a transformation or a map projection that I am missing or recreating a GeoJSON from scratch the only relevant choice? Why are my JavaScript objects equal to Proxy {} Center of mass in n dimension, possible? Is it possible to calculate the center of mass for some 20-dimension ($x_i, i=1,\ldots,20$) particles? If it is possible, how can I do that? I installed an alpha or beta, am I up to date with the final release if I keep upgrading? What is the difference between upstream and downstream when referring to who (or where) to go to as a developer or packager? Duplicated Onedrive icon in explorer I've installed windows 10 on a new pc, with a secondary hard disk containing my onedrive folder, taken from my old pc. I've configured onedrive in order to use that folder, and it's working fine.  The problem is that when I open Explorer I can see two onedrive icons on the sidebar, both of them pointing at the same folder.  How can I remove the duplicated onedrive entry from the sidebar? Given that indexing is so important as your data set increases in size, can someone explain how indexing works at a database-agnostic level?  For information on queries to index a field, check out . I have often heard it recommended that a user account should be disabled by setting its shell to /bin/false. But, on my existing Linux systems, I see that a great number of existing accounts (all of them service accounts) have a shell of /sbin/nologin instead.  I see from the man page that /sbin/nologin prints a message to the user saying the account is disabled, and then exits. Presumably /bin/false would not print anything.  I also see that /sbin/nologin is listed in /etc/shells, while /bin/false is not.  The man page says that FTP will disable access for users with a shell not listed in /etc/shells and implies that other programs may do the same. Does that mean that somebody could FTP in with an account that has /sbin/nologin as its shell?  What is the difference here? Which one of these should I use to disable a user account, and in what circumstances? What other effects does a listing in /etc/shells have? How to use an item in my off-hand? Transparent path/stroke fill in Illustrator Manually Installed new Python to /usr/bin, how to get Repo version back? Yes, I'm a moron, and I tried to manually install a higher point release of python 2.7.16 to /usr/bin/  (i did ./configure --prefix=/usr) on my Ubuntu 16.04 machine. It seems to work fine EXCEPT for packages that depended on python, like apt-listchanges, which fails with messages like ImportError: No module named apt_pkg  there's no make uninstall available, I've tried manually removing files, and still when I try apt --reinstall install python, Nothing gets overwritten and the python executable still gives the new 2.7.16 version...   Any idea how to get the official repository version back?? Restoring Windows XP PATH variable I installed an application that screwed my PATH variable. Now I cannot run anything from the command prompt. Is there any way I can restore PATH variable? Since I can't find any alternative to Linux'  elevation command, I have the following question:  How to define a PowerShell function which requires elevation? I mean UAC prompt.  Say, such function follows:  function system-check {     SFC /ScanNow }   System:  Windows 8.1 Pro 64-bit  PowerShell:   Major  Minor  Build  Revision -----  -----  -----  -------- 5      0      10586  117    EDIT1:  To be 100% understandable let me rephrase:   I run PowerShell as user I run the aforementioned function system-check I want the function to elevate in order to be able to execute the command; note, that I want the UAC prompt to appear I've read that flash memories can "only" be reprogrammed 100000 to 1000000 times, until the memory storage "deteriorates"  Why exactly does this happen with flash and not other memory types, and what does "deteriorate" refer to, internally?  EDIT: Since it's not only flash that this happens, I'd like to generalize a bit and inquire about the memories that have this problem. Also, does the wearing out between these memory types occur due to the same phenomenon? Why can't I move a window to the top left corner with wmctrl in Unity? I've been playing around with wmctrl to take more control of my windows. I've encountered a weird behaviour where Unity reserves double the space. See this screen shot:    I opened the terminal and moved the window using the top command. It should be at the top left corner (X=0 Y=0). But for some reason there is some margin between the terminal and the Unity bars.  If I understand the man pages correctly it might have something to do with the WA: 65,24.  Can anybody help me to fix this? Can you be sued for using publicly used images on a blog without copyright permission? Lets say I write a blog post about the new Batman movie or a the new Grand Theft Auto game and i decide to use the boxart/poster or a wallpaper as the main image for the blog post,  can I be sued for breach of copyright on this image?  Im pretty sure Warner Bros are going to be hunting anyone down even if it is legal, but is this actually legal? If i buy the DVD or Game and take a picture of it, is this my copyright? When a trailer gets released and put on youTube, can i take a screenshot of this video and use this as an image?  It seems people can get rightly screwed for this, so I would like to know where i stand on this sort of thing.