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Please don't use this tag just because your system is running Ubuntu. Use it _only_ if your question is somehow specific to Ubuntu only. Note that https://askubuntu.com is specifically dedicated to Ubuntu questions.

1
vote
1answer
I have noticed that echo $DISPLAY on Ubuntu 18.04 LTS prints :1 The same command on Ubuntu 16.04 prints :0 Why it has been changed ? …
asked Dec 28 '18 by Irbis
2
votes
0answers
stty allows to read a serial port configuration. I have noticed that when some program opens, configures and later closes a serial port the last serial port configuration is still present in the syste …
asked Sep 18 '18 by Irbis
0
votes
1answer
I use jpnevulator to sniff an application which reads a serial port: jpnevulator --tty /dev/ttyS0 --read Let's assume that the following bytes are sent to the serial port: A B C D E. Sometimes jpne …
asked Sep 17 '18 by Irbis
1
vote
0answers
My configuration: Ubuntu 16.04 LTS Nvidia Quadro K1000M Nvidia driver 418 I want to connect my laptop to TV, but the laptop has only a display port so I have bought hdmi to display port adapter …
asked May 19 by Irbis
0
votes
1answer
I try to start second xsession on Ubuntu 18.04.1 LTS. I switch to tty3: ctrl + alt + F3 then execute the following commands: export DISPLAY=:2 startx -- :2 but it fails. Logs. What is wrong ? The same method works fine on Ubuntu 16.04.5 LTS. …
asked Dec 29 '18 by Irbis