Bug 435638

Summary:	Killing nslookup in Konsole breaks font
Product:	[Applications] konsole	Reporter:	Juho <xemanth>
Component:	general	Assignee:	Konsole Developer <konsole-devel>
Status:	RESOLVED UPSTREAM
Severity:	normal	CC:	a.samirh78
Priority:	NOR
Version:	20.12.3
Target Milestone:	---
Platform:	Neon
OS:	Linux
Latest Commit:		Version Fixed In:
Sentry Crash Report:
Attachments:	problem after closing nslookup with ctrl+c

Description Juho 2021-04-12 04:51:40 UTC

SUMMARY
Killing nslookup with CTRL+C in Konsole breaks the font.
you don't see anymore what is typed until Konsole is restarted.

STEPS TO REPRODUCE
1. Open nslookup 
2. Kill it with CTRL+C
3. Font breaks down

OBSERVED RESULT
-> CTRL+C breaks the font/text and Konsole needs to be restarted. 
You don't see anymore what is typed to Konsole.

EXPECTED RESULT
Typed text should stay normal as it was before starting nslookup.

SOFTWARE/OS VERSIONS
OS: KDE Neon 5.21
KDE Plasma Version: 5.21.4
KDE Frameworks Version: 5.80.0
Qt Version: 5.15.2

Comment 1 Ahmad Samir 2021-04-12 08:42:08 UTC

I've just tested this and everything seemed to work.

Does it happen with one specific font or all monospace fonts?

Comment 2 Juho 2021-04-12 08:56:52 UTC

Created attachment 137521 [details]
problem after closing nslookup with ctrl+c

Now typing anything just keeps the white box there and hitting enter executes the command which is not showing up on the screen...

Comment 3 Juho 2021-04-12 08:58:09 UTC

(In reply to Ahmad Samir from comment #1)
> I've just tested this and everything seemed to work.
> 
> Does it happen with one specific font or all monospace fonts?

I added a screenshot, I'm not sure is it just a font issue. The white box just stays there and doesn't show text which is typed.

I tried to change my Breeze Dark to Breeze but it didn't solve it.

Comment 4 Juho 2021-04-13 10:38:39 UTC

I can reproduce this with KDE Neon live USB environment with default settings.

Package versions:
Konsole 20.12.3
nslookup 9.16.1-Ubuntu

Comment 5 Ahmad Samir 2021-04-13 17:58:54 UTC

I tested and I don't get that behaviour. How do you end/exit nslookup?

I did:
$ nslookup
$ yahoo.com
it displays some info, I press Ctrl+C Ctrl+C or Ctrl+D (once) to exit.

Comment 6 Juho 2021-04-14 06:36:47 UTC

(In reply to Ahmad Samir from comment #5)
> I tested and I don't get that behaviour. How do you end/exit nslookup?
> 
> I did:
> $ nslookup
> $ yahoo.com
> it displays some info, I press Ctrl+C Ctrl+C or Ctrl+D (once) to exit.

I just hit CTRL+C once inside nslookup, and after that Konsole doesn't show anymore any input and the only way to get get it back to the working state is to restart Konsole.

Comment 7 Juho 2021-04-14 08:34:28 UTC

Hmm-m, I think this is more like nslookup issue than KDE.
I tried nslookup in CLI without X or KDE and I have the same issue.

Comment 8 Juho 2021-04-14 15:02:02 UTC

Exiting the program by typing exit makes Konsole work like expected. 
So it's only ctrl+c (violent kill) which breaks it.

Comment 9 Ahmad Samir 2021-04-14 15:26:39 UTC

Actually I have to press Ctrl+C twice to exit, or Ctrl+D (once).

It's not a Konsole bug.