Bug 411966

Summary:	when scrolling up historic lines are missing
Product:	[Applications] konsole	Reporter:	roi.shaag
Component:	history	Assignee:	Konsole Developer <konsole-devel>
Status:	RESOLVED WORKSFORME
Severity:	major	CC:	joeytwiddle, justin.zobel, nate
Priority:	NOR
Version:	unspecified
Target Milestone:	---
Platform:	PCLinuxOS
OS:	Linux
Latest Commit:		Version Fixed In:
Sentry Crash Report:

Description roi.shaag 2019-09-16 12:57:00 UTC

SUMMARY
after running some command with output to the konsole, when trying to review the previous lines of output by scrolling up in the konsole, all lines above (before) the first line that appear in the konsole are missing, and instead there is infinite number of blank lines all the way up. 


STEPS TO REPRODUCE
1. it happens occasionally
2. 
3. 

OBSERVED RESULT
blank lines in history (when scrolling up)

EXPECTED RESULT
output lines

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: 

ADDITIONAL INFORMATION

Comment 1 joeytwiddle 2020-02-24 14:44:51 UTC

I have not noticed this behaviour from konsole.

But it is common for this to happen if:

- You are running in tmux or screen

- You are using a certain pager

- The command you ran is displaying output in a pager

I wonder if it might be one of those.

To test for the last two scenarios, For example, you could try:

- command (just on its own)

- PAGER=cat command (this will output everything without pausing)

PAGER=less or PAGER=more might produce behaviour closer to what you want.  My personal favourite is PAGER="less -REX"

Or, it could be none of those situations, and truly a problem with konsole!

Comment 2 Justin Zobel 2020-11-03 01:24:06 UTC

Are you able to still reproduce this behaviour? I haven't noticed any blank/black lines in my konsole from regular use.

Comment 3 Bug Janitor Service 2020-11-18 04:33:54 UTC

Dear Bug Submitter,

This bug has been in NEEDSINFO status with no change for at least
15 days. Please provide the requested information as soon as
possible and set the bug status as REPORTED. Due to regular bug
tracker maintenance, if the bug is still in NEEDSINFO status with
no change in 30 days the bug will be closed as RESOLVED > WORKSFORME
due to lack of needed information.

For more information about our bug triaging procedures please read the
wiki located here:
https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging

If you have already provided the requested information, please
mark the bug as REPORTED so that the KDE team knows that the bug is
ready to be confirmed.

Thank you for helping us make KDE software even better for everyone!

Comment 4 Bug Janitor Service 2020-12-03 04:34:11 UTC

This bug has been in NEEDSINFO status with no change for at least
30 days. The bug is now closed as RESOLVED > WORKSFORME
due to lack of needed information.

For more information about our bug triaging procedures please read the
wiki located here:
https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging

Thank you for helping us make KDE software even better for everyone!