user3731622's questions

After running

sudo apt-get install texlive-xetex

I get

Ign:1 http://archive.ubuntu.com/ubuntu bionic/universe amd64 texlive-fonts-recommended all 2017.20180305-1                                                             
Err:1 http://archive.ubuntu.com/ubuntu bionic/universe amd64 texlive-fonts-recommended all 2017.20180305-1
  Connection failed [IP: 91.189.88.152 80]
Unable to correct missing packages.
E: Failed to fetch http://archive.ubuntu.com/ubuntu/pool/universe/t/texlive-base/texlive-fonts-recommended_2017.20180305-1_all.deb  Connection failed [IP: 91.189.88.152 80]
E: Aborting install.

Why is this happening & how can I fix it?

I've been using X2Go for a while now to connect from Windows10 to remote Ubuntu server.

I've been using the X2Go Session Type "Connect to local desktop".

Everything was working last night. Today when I tried connecting the X2Go Client seems to connect. However, where the X2Go Client GUI normally displays the Ubuntu desktop, I get a black screen which temporarily shows X2Go logo/name.

There are quite a few pages related to X2Go Black Screen, but I couldn't find an answer to my problem. Here are a few I looked: x2go do not connect to active desktop session X2go Black Screen

While ssh'd into remote machine using putty simultaneously while X2Go client is connected and showing black screen, if I run x2golistdesktops from terminal, I see

theusername@:50
theusername@:1

I think the theusername@:50 is the X2Go connection. This concerns me b/c in info reported by X2Go client (see below) I see Info: Forwarding X11 connections to display 'localhost:0'.

I've tried restarted my local machine. I've also restarted the X2Go service on the remote Ubuntu machine. I was also able to connect to remote machine using putty with x11 forwarding and xming and get GUI (e.g. for emacs).

Here is info reported by X2Go:

Copyright (C) 2001, 2010 NoMachine.

See http://www.nomachine.com/ for more information.

Info: Proxy running in client mode with pid '7496'.

Session: Starting session at 'Fri Nov 13 11:28:10 2020'.

Info: Connecting to remote host 'localhost:58746'.

Info: Connection to remote proxy 'localhost:58746' established.

Info: Connection with remote proxy completed.

Warning: Unrecognized session type 'unix-kde-depth_32'. Assuming agent session.

Warning: Failed to read data from the X auth command.

Warning: Generated a fake cookie for X authentication.

Info: Using ADSL link parameters 512/24/1/0.

Info: Using cache parameters 4/4096KB/8192KB/8192KB.

Info: Using pack method '16m-jpeg-9' with session 'unix-kde-depth_32'.

Info: Using ZLIB data compression 1/1/32.

Info: Using ZLIB stream compression 4/4.

Info: No suitable cache file found.

Info: Forwarding X11 connections to display 'localhost:0'.

Session: Session started at 'Fri Nov 13 11:28:12 2020'.

Info: Established X server connection.

Info: Using shared memory parameters 0/0K.