Can't open display: (null) : Inappropriate ioctl for device about clipboardy HOT 3 OPEN

I encountered the same issue as I was trying to setup semantic-release-cli (running npx semantic-release-cli setup, you probably are running a different command though).

Environment

Mac => ssh => ubuntu (headless)

My server (headless)

$ lsb_release -a
No LSB modules are available.
Distributor ID:	Ubuntu
Description:	Ubuntu 20.04.2 LTS
Release:	20.04
Codename:	focal

I am using a mac to control the server.

 Model Name:	MacBook Air
  Model Identifier:	MacBookAir10,1
  Chip:	Apple M1

Things I tried (didn't work)

1. install xsel on the ubuntu like it told me
2. got out of tmux on the ubuntu, then run npx semantic-release-cli setup
3. reconnecting to ubuntu by ssh -X ...

Solution

Then I did more googling and found an article saying to install X11(XQuartz) on Mac. So I did it like this.

1. downloaded and installed X11(XQuartz)
2. logged out & logged in (on Mac)
3. ran XQuartz (opens a terminal, but I used my own terminal - iTerm2 to do the next step)
4. then did ssh -X ...
5. then ran the command I had this problem with
6. worked!

from clipboardy.

Some possible workarounds:

https://unix.stackexchange.com/questions/566081/xsel-cant-open-display-null

https://stackoverflow.com/questions/18695934/unable-to-copy-ssh-id-rsa-pub

Would be nice if we could handle this case in Clipboardy. If not, we should at least improve the error message.

from clipboardy.

encountering same issue but there should be a command line for a solution to this isuue

from clipboardy.