Bug#640464: xterm: rendering problems (pixels not erased?)

[Vincent Lefevre <vincent@vinc17.net>]

On 2012-01-05 23:36:44 +0100, Vincent Lefevre wrote:
> To reproduce the bug, I've attached a file "text", obtained from
> xterm logging (md5sum: e522fe4b2a4e45e39761550e8a5426f7). The steps
> are the following:
> 
> 1. Type: xterm -geometry 80x60 -e 'sleep 10; cat text; sleep 999'
> 2. Put a smaller window covering the middle of the right part of
>    the xterm window.
> 3. Wait for the text (from "cat text").

A more automatic way to run this test: just run the attached
fdbug49786.sh script (this is a standalone testcase) and wait
for 4 seconds. It just needs xterm and base64 (to output some
content with special chracters).

I've attached screenshots:
  * snapshot1.png: what is obtained after running the script. Incorrect.
  * snapshot2.png: what is obtained after a redraw. Correct.

-- 
Vincent Lefèvre <vincent@vinc17.net> - Web: <http://www.vinc17.net/>
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Work: CR INRIA - computer arithmetic / AriC project (LIP, ENS-Lyon)

Attachment: fdbug49786.sh
Description: Bourne shell script

Attachment: snapshot1.png
Description: PNG image

Attachment: snapshot2.png
Description: PNG image