[Konsole-devel] [Bug 220050] New: Aptitude prevents correct scrolling

[Markus Laker]

https://bugs.kde.org/show_bug.cgi?id=220050

           Summary: Aptitude prevents correct scrolling
           Product: konsole
           Version: unspecified
          Platform: Compiled Sources
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: general
        AssignedTo: konsole-devel at kde.org
        ReportedBy: kde20091215.20.mlaker at spamgourmet.com


Version:            (using Devel)
OS:                Linux
Installed from:    Compiled sources

I'm using Konsole 2.4 on KDE 4.4 Beta 2.

Boot Debian, or a Linux system based on Debian (such as Ubuntu).  Open a new
Konsole instance.  Make it 40 lines deep.  Run

sudo aptitude

When aptitude runs up, press `q' and `y'.  This terminates aptitude.

Now hold down the Enter key.  You'll see that Konsole ignores about the bottom
40% of the available space: when the cursor gets 60% of the way down the
screen, the visible text scrolls away and the cursor goes no further.

Now try a different experiment.  Open a new instance of Konsole, and make it 40
lines deep. Hold down the Enter key until you get to about line 32.  Run
aptitude and then quit it, in the same way as before.  Now press Enter until
you get to the bottom of the screen.  From now on, Konsole will keep reusing
and overwriting the bottom line of text: it won't scroll existing text up the
window.

In both cases, `Edit: Clear and reset' brings Konsole back into a usable state.

This problem does not occur with xterm.  It does not occur with Konsole 2.3.3
on KDE 4.3.4, using an identical version of aptitude.  It seems to be a
regression in Konsole 2.4 or KDE 4.4.

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