(In reply to Diego Viola from comment #6)
> (In reply to Michel Dänzer from comment #1)
> > Please attach the corresponding Xorg log file and output of glxinfo and
> > dmesg.
> 
> Done.
> 
> > 
> > I can't seem to reproduce this, and I'm not sure what exactly "parts of the
> > scrollback buffer disappear" means. Maybe you can make a screencast or
> > screenshots demonstrating the problem?
> 
> By that I mean the actual text/output disappears after I do shift+page up,
> but it doesn't if I scroll with the mouse wheel or if I use the scrollbar.

That was wrong, using the scrollbar also causes the same effect as using
shift+page up (disappearing text).