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Bug#975687: xterm: loses text lines, even descenders from some lines



On Thu, Nov 26, 2020 at 07:30:27PM -0500, Thomas Dickey wrote:
> On Fri, Nov 27, 2020 at 12:04:07AM +0000, Thorsten Glaser wrote:
> > Hi Thomas,
> > 
> > >If you're going to compile it, the debug-trace can be useful
> > >(--enable-trace).  If not, the -report-fonts option is helpful.
> > 
> > I hadn’t recompiled, at least not with actual changes.
> > The -report-fonts output is attached, fNorm is the one
> > in question.
> > 
> > I did a little bisecting: Debian’s 360-1 did not have
> > the bug, 361-1 did, and when recompiling 360-1 unchanged
> > in a current unstable chroot, it also doesn’t have the
> > bug, so it’s not something else that changed.
> 
> sounds promising - 
>  
> > Looking at debian/patches/ in 361-1 it also doesn’t change
> > any of the code, so I guess it’s some upstream change.
> > 
> > >If I can reproduce it, I'll see what I can do.

I see that version in testing, but don't see a problem on the screen.
I made a short script to cat those lines to the terminal, sleeping 0.2
seconds between bursts, and the result looks ok, even with a magnifier.
See screenshot (script is attached also).

-- 
Thomas E. Dickey <dickey@invisible-island.net>
https://invisible-island.net
ftp://ftp.invisible-island.net

Attachment: screenshot.png
Description: PNG image

#!/bin/sh
while true
do
date
cat <<'EOF'
Nov 25 06:23:43 tglase-nb sudo: pam_unix(sudo:session): session opened for user root by tglase(uid=0)
Nov 25 06:23:43 tglase-nb sudo: pam_unix(sudo:session): session closed for user root
Nov 25 06:23:45 tglase-nb sudo:   tglase : TTY=pts/2 ; PWD=/home/tglase ; USER=root ; COMMAND=/bin/true
EOF
sleep 0.2
done

Attachment: signature.asc
Description: PGP signature


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