Why can’t I run GUI apps as root: “No protocol specified”?
I installed Debian onto my machine last night. Now, I don’t understand why I can’t run GUI apps from a terminal when running as root.
kde
Some apps doesn’t accept some characters from the «Compose» key
The problem is that the compose key works fine, but some application doesn’t accept some characters from it. E.g. I can type the character ∞ in Emacs (Compose+8+8), but this won’t work in FireFox, Konsole and Kate. But many other characters, e.g. € typed there (in FireFox, Konsole and Kate) with Compose work just fine. Also I may insert a problem symbols with a simple copy-paste (from any of two clipboards).
SFTP over reverse SSH tunnel?
I want to SFTP to a remote computer that is behind NAT. I can’t modify the NAT router, so I have set up a reverse SSH tunnel using a middleman server.
using sudo on GUI applications
When I was using kubuntu, I could always open X applications with sudo, sudo kate for example. Now that I’ve switched to arch that doesn’t work. I know I’ve always been told to use kdesu, but what setting is there in kubuntu that lets me use sudo on X apps that prevents me from doing it on arch?
Remote desktop (KDE) over SSH reverse tunnel
I have a reverse ssh tunnel through a middleman server set up and working. I’m running Kubuntu 12.04 here and on the remote machine.
Run a dbus program in crontab , how to know about the SESSION id?
I need to run some program within crontab , but how can the program know about dbus session id ? it’s only available for programs launched by session managers.
Expand KDE activities concept to the shell
Sometimes, I use KDE, and one of the things that I like the most in KDE 4 is the activity concept. At work, it is very useful because I often work on several different projects during one day. Switching to another activity enables me to change the widgets, so that I can have access to folders related to the current project, for instance.
UTF8 math symbols & keyboard layout / input
I’d like to use UTF8 math symbols, when typing one list, another list.
Why does my desktop lock up when I copy lots of files to a USB drive?
My desktop is usually very responsive, even under heavy load. But when I copy files to a USB drive, it always locks up after some time. By “lock up”, I mean:
How to change the default program for a chosen file type system-wide in kde or xfce?
I would like to have files of a chosen type (by their extension) to open with some specific programs. Which configuration files do I need to edit?
I’ve tried some in /usr/share/appplications/default.list but it doesn’t work.