Screen command gets " Could not find a PTY " after connecting once

If I plug a USB-C to serial Cat5 cable into my Macbook Pro, I can properly connect to the external device the device using Screen, from Terminal. Once I close that Screen session and try again, I get the error listed in the topic. I can unplug the serial cable from my Mac and plug it back in, and it works correctly.

Is there a fix for this ?

Mac OS 10.15.5

Posted on Jun 19, 2020 11:58 AM

Similar questions

Command F2 doesn’t work I am trying to use my mid 2011 iMac (21.5-inch) as a secondary display for my MacBook Pro. I have read the following article, and connected the thunderbolt 2 cable to the iMac, however when typing command-F2 I am getting an error sound and nothing happens. https://support.apple.com/en-us/HT204592 The macOS version I am using on the iMac is 10.13.6 (High Sierra). I have tried Command-F2 both logged in and logged out of my session. Would you know what is causing ? Is the command compatible with the version of macOS above? Thank you!
916 6
Resource busy while trying to connect to serial I am trying to connect serial port from my mac and getting below error- minicom: cannot open /dev/cu.usbserial-0001: Resource busy
1639 1
USB Serial issue with minicom 2.7.1? A few days ago, I bought some usb to serial modules (FT232) and tried to use with my MacBook to control a hardware via console. I downloaded and installed the latest driver provided by FTDI (version 2.4.2) and also installed minicom 2.7.1 from homebrew. Unfortunately, when I connect Macbook to the board, it hasn't any responses and my terminal window is blank. But, it still works if I connect to another PC. I just updated to macOS Catalina and haven't tried it with previous MacOS version. Has anyone had the same problem?
2658 1

There are no replies.

This thread has been closed by the system or the community team. You may vote for any posts you find helpful, or search the Community for additional answers.

Screen command gets " Could not find a PTY " after connecting once

Welcome to Apple Support Community

A forum where Apple customers help each other with their products. Get started with your Apple Account.

Learn more Sign up