Cursor is flickering when terminal is active

[ramele]

No issues with the cursor while running the following script using :term job.sh, but it is flickering with :vert term job.sh (in both vim and gvim) and with :bo term job.sh on gvim:

$ cat job.sh

!/bin/bash

for i in seq 1 20000; do sleep 0.005 echo "$i" done

To reproduce: $ (g)vim -u NONE :vert term job.sh " or :bo CTRL-Ww " look at the cursor

I'm running Vim 8.1.10 on RHEL 6.

Thanks, Ramel

[dvenum]

I cant reproduce on debian jessie with xterm and vim-8.1.0001.

[ramele]

Actually, I noticed something strange with gnome terminal on ubuntu (16.04) -when I open a terminal and also after starting vim the cursor is blinking, but when I start :term inside vim the cursor stops blinking, also after exiting vim (so there is no flickering). I believe that this is another issue..

You can still see the original issue in the gui (after moving the empty window to the top):

[dvenum]

Got it on xterm, my mistake about job.sh. If not your issue, I had to think it normal. Now, it will annoy me too. smile I don't know, how cursor is drawing yet and I will check it in freetime, it can be interest. Hope to see more comments here about what this can be.

[brammool]

Got it on xterm, my mistake about job.sh. If not your issue, I had to think it normal. Now, it will annoy me too. :smile: I don't know, how cursor is drawing yet and I will check it in freetime, it can be interest. Hope to see more comments here about what this can be.

It might be unavavoidable. In most terminals the cursor shows up where text is being redrawn, moving forward when outputting text. Vim has to hide the cursor while this is happening, and then restore it to its original position. Thus it will be hidden for a short moment.

In the GUI we might do something more clever, don't hide it if we are redrawing another window (and we know no scrolling will happen, no menu pops up, etc.).

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[dvenum]

Thanks for your answer. Nice to known it.

[tmpm697]

I have the same issue, weird part is that neovim does not have this issue.