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I just installed the latest stable version of my favorite terminal emulator, cool-retro-term, and, upon running it, I get this:

user@main:~$ cool-retro-term
Qt: Session management error: None of the authentication protocols specified are supported
libGL error: MESA-LOADER: failed to retrieve device information
libGL error: Version 4 or later of flush extension not found
libGL error: failed to load driver: i915
default KB_LAYOUT_DIR:  "/snap/cool-retro-term/32/usr/lib/x86_64-linux-gnu/qt5/qml/QMLTermWidget/kb-layouts"
QObject::connect: No such slot Konsole::TerminalDisplay_QML_51::close()
loadAllColorSchemes
Session::run() - program: "/bin/bash"
Session::run() - arguments: ("")
started!
Both point size and pixel size set. Using pixel size.

The GUI works just fine, but whenever I try to run commands from within the terminal emulator, I get a "permission denied" message.

I thought running as superuser might solve the permissions problem, but instead, I get:

username@main:~$ sudo cool-retro-term
mkdir: cannot create directory '/run/user/0': Permission denied
No protocol specified
QXcbConnection: Could not connect to display :0
Aborted

I have to admit I'm stumped here. Is there something obvious I'm overlooking?

Please let me know. Thanks!

(P.S. I've tried sudo-apt-get-update, and I've tried installing through Ubuntu's software application. Both installs had the same issue.)

  • I would think this Qt: Session management error: None of the authentication protocols specified are supported is the issue! – George Udosen Dec 20 '18 at 1:36
  • The Ubuntu version will also be helpful! – George Udosen Dec 20 '18 at 1:38
  • How was it installed? A youtube video says it's from a PPA (noobslab?) – Xen2050 Dec 20 '18 at 2:40
  • Is this error only when using sudo? What happens if you run echo foo? And what happens if you run /bin/ls? Run both without sudo please. – terdon Dec 20 '18 at 13:57

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