My notebook has HDMI connection to external monitor. I want have xrandr to pass parameters so that image is passed on both internal and external monitors, and when external monitor is disconnected, the image continues pass on internal. Currently I turn it off it manually: % xrandr --output LVDS...

I have installed fedora 26 in my laptop with custom partition. /boot 300MB /home 175GB /data 350GB swap 16 GB Then i tried to install ubuntu 16 as dual boot. In partiotion selected the "install alongside fedora 26". The installation went fine. After installation the grub shows only Fedora 26. But...

I did what exactly this instruction says: Add a custom session by creating a file at /usr/share/xsessions/metacity-session.desktop. This file tells the login manager about your session. Create the file to be executed by the session added in (1) /usr/local/bin/metacity-session. Cre...

I use this code to set up a simple http file server with upload on a remote ubuntu 14.04 machine. The local machine is Windows, that will be the user machine in my application. I need to be able to send files to remote and back over the public network. I do not have access to router settings in r...

I'm having some problems on my computer https://superuser.com/questions/1259808/windows-linux-wont-boot-from-any-disk-were-working-before. I've managed to install Ubuntu 17.10 and it works but I get a random error once in a while and sometimes it freezes the computer. I'm not able to find what's ...

I'm looking for some projects that I can use to practice debugging compilation issues with. Something ideally on Github with a makefile. I'm trying to practice debugging compile time issues and since I can't find many resources online I'm simply cloning random Github projects and hope I run into...

Suppose we have a txt file file.txt with each line is a python script e.g. python a1.py python a2.py python a3.py What does the following command is really doing ? cat file.txt | xargs -n 1 -P $NUM_CPUS bash -c

I installed libvirt out of the box on Ubuntu 16.04, it creates a virbr0 virtual bridge, at 192.168.122.0/24, a dnsmasq instance to serve that range and sets up basic NAT masquerading. I created a tap interface beneath that for my virtualization software to use. The software itself is able to acc...

I wanna know if exist some file in /proc that shows the file system free space like the Ubuntu's command: df -h root@localhost:~$ df -h S. files SIZE USE FREE %USE MNT IN udev 1,9G 4,0K 1,9G 1% /dev tmpfs ...

I'm working on Ubuntu 16.04 LTS. I ran software updater & got the below error. As the error says "check your Internet connection" but net is active. I double-checked that by opening a browser page. Why the error message coming although net is there? I pressed the button OK & the below pop-up...

Ubuntu Server 16.04.3 OpenSSH For some reason when I log in remotely, although I am able to login with a password, I get a simple $ prompt instead of username@host:~$ prompt. To get (what in ignorance I will call) the "full prompt" I have to 'su username' and login again???? what am I missing? i...

I have Ubuntu 16.04 running a samba server and another 16.04 box that mounts it without issue using the fstab line //192.168.0.102/share /mnt/raid cifs user=myuser,pass=mypass. When I mount the share, the files all show the proper user/group and when coping files to the share, the mode (ie 0444)...

I have added the following environment variables to the end of my bash.bashrc CPATH=$CPATH:/usr/custom/include LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/custom/lib PATH=$PATH:/usr/custom/bin But when I try to run make with a file needing ncurses it fails. ncurses.h is located at /usr/custom/in...