[Konsole-devel] [konsole] [Bug 340438] New: scroll on updates lines at bottom and top, not in the middle

[Marcus]

https://bugs.kde.org/show_bug.cgi?id=340438

            Bug ID: 340438
           Summary: scroll on updates lines at bottom and top, not in the
                    middle
           Product: konsole
           Version: unspecified
          Platform: Other
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: general
          Assignee: konsole-devel at kde.org
          Reporter: kde at familiakool.net

On a desktop with CentOS 7;  Linux 3.10.0-123.el7.x86_64 x86_64; KDE 4.10.5;
konsole 2.10.5
Some konsole windows do not scroll properly: when scrooling using the scrollbar
or the scroll butoon on the mouse: the behavior is that some bottom lines and
some top lines are updated and the lines in the middle of the window remain the
same.
'some lines' means: sometimes 1, sometimes 5, sometimes 6.

I have not been able to reproduce it consistenly...
I have 8 konsoles: 4 for a shell on the local desktop and 4 for a shell on a
remote linux system whcih is accessed by SSH.
The improper scrolling only occurs only on all 4 konsoles with the remote shell
and only when used for 2 days.

Reproducible: Sometimes

Steps to Reproduce:
1. open konsole
2. use ssh to go to remote Linux system
3. use it 2 days
4. try to scroll the content of the konsole

Actual Results:  
window incorrectly displays content.  Only some top and some bottom lines ar
correct and the middle lines are bogus.

Expected Results:  
all rows, especially the middle rows, have the correct content.

new computer. Intel i5, 16 GB RAM, RAID1 disks.

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