GNU nano - Bugs: bug #59091, on bterm (in Debian installer),...
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bug #59091: on bterm (in Debian installer), the cursor disappears with -c and ^S
Submitter: | Benno Schulenberg <bens> | ||
Submitted: | Thu 10 Sep 2020 09:40:49 AM UTC | ||
Severity: | 2 - Minor | Status: | Fixed |
Assigned to: | bens | Open/Closed: | Closed |
Fri 11 Sep 2020 05:04:51 PM UTC, comment #4: |
Benno Schulenberg <bens> |
Thu 10 Sep 2020 05:04:48 PM UTC, comment #3: I got the idea for the workaround when I noticed that the problem occurred with ^S but not with ^O <Enter>. The main difference between the two is that the latter changes the two help lines. (Without the help lines, there is no difference: both commands make the cursor disappear.)
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Benno Schulenberg <bens> |
Thu 10 Sep 2020 04:54:27 PM UTC, comment #2: The issue has been mitigated in git, by commit d2d0c665, by kicking the terminal and/or Slang into rewriting the entire bottom window, which somehow awakens the cursor.
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Benno Schulenberg <bens> |
Thu 10 Sep 2020 04:26:59 PM UTC, comment #1: I've tried fixing this by removing all calls of curs_set(0) from nano. It doesn't help. :| Maybe it isn't even a bug in Slang but in bterm. |
Benno Schulenberg <bens> |
Thu 10 Sep 2020 09:40:49 AM UTC, original submission:
To reproduce, boot from a Debian netinstall image, boot the plain "Install" target, not the default "Graphical install". Run through the steps until reaching the manual disk partitioning. Escape from that item and then choose the "Shell" item near the end of the main menu. Then run 'nano -c'. See that there is no cursor. Type a few charactes, say "xxx". Upon the first "x", the cursor appears. Now type ^B three times. Upon the second ^B the cursor disappears again. Type ^N ^B. The cursor appears again... WTH?
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Benno Schulenberg <bens> |
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Follow 4 latest changes.
Date | Changed by | Updated Field | Previous Value | => | Replaced by |
---|---|---|---|---|---|
2020-10-08 | bens | Open/Closed | Open | Closed | |
2020-09-11 | bens | Status | None | Fixed | |
2020-09-10 | bens | Severity | 3 - Normal | 2 - Minor | |
2020-09-10 | bens | Summary | on bterm (in Debian installer), the cursor hides with -c and ^S and toggle | on bterm (in Debian installer), the cursor disappears with -c and ^S |
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Corresponding source code
A more complete workaround has been made in commit b9a1a586.
I'm marking this as fixed now. It's not fixed for the -x/--nohelp case, but it's "fixed" for the default setup. That will have to do for now -- until I figure out how install a libncurses into the installer image and check whether the cursor problem is gone then. If not, then it must be a problem of bterm itself.