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bug#26153: 26.0.50; Garbage displayed at visual line boundaries
From: |
Eli Zaretskii |
Subject: |
bug#26153: 26.0.50; Garbage displayed at visual line boundaries |
Date: |
Sat, 18 Mar 2017 15:28:53 +0200 |
> From: Yuri D'Elia <wavexx@thregr.org>
> Date: Sat, 18 Mar 2017 13:00:40 +0100
>
> In the last weeks a new issue crept up in the display engine. Some
> visual garbage is drawn at the horizontal lower/upper edge when using
> hl-line-mode, on the region, or anything that redraws the current visual
> line to fill the background.
>
> See the attached screenshot, captured with emacs -Q on the current
> master, with the lucid toolkit.
>
> Evaluate the test file, then move the pointer down one line at a time,
> until garbage is visible.
I don't see any garbage when I do this, but maybe that's because my
Emacs is built without optimizations. Or maybe this is specific to X?
> Changing the font weight seems necessary to trigger this issue
Tried that, it didn't help.
> as well some hidden properties in the line.
What does this mean in practice? What should I try changing?
> This seems to have been introduced around commit
> d546be31a9320d94769cb322f008f49d08d852a8 ("Fix display of
> mouse-highlight produced by overlapping overlays") or earlier.
>
> If the exact commit would be helpful, I can try to pinpoint it.
Please do, as the above commit had to do with mouse-highlight, which I
don't see in your recipe.
Thanks.
- bug#26153: 26.0.50; Garbage displayed at visual line boundaries, Yuri D'Elia, 2017/03/18
- bug#26153: 26.0.50; Garbage displayed at visual line boundaries,
Eli Zaretskii <=
- bug#26153: 26.0.50; Garbage displayed at visual line boundaries, Yuri D'Elia, 2017/03/18
- bug#26153: 26.0.50; Garbage displayed at visual line boundaries, Eli Zaretskii, 2017/03/18
- bug#26153: 26.0.50; Garbage displayed at visual line boundaries, Yuri D'Elia, 2017/03/18
- bug#26153: 26.0.50; Garbage displayed at visual line boundaries, Eli Zaretskii, 2017/03/18
- bug#26153: 26.0.50; Garbage displayed at visual line boundaries, Yuri D'Elia, 2017/03/18
- bug#26153: 26.0.50; Garbage displayed at visual line boundaries, Eli Zaretskii, 2017/03/18
- bug#26153: 26.0.50; Garbage displayed at visual line boundaries, Yuri D'Elia, 2017/03/18
- bug#26153: 26.0.50; Garbage displayed at visual line boundaries, Yuri D'Elia, 2017/03/18
- bug#26153: 26.0.50; Garbage displayed at visual line boundaries, Eli Zaretskii, 2017/03/18
- bug#26153: 26.0.50; Garbage displayed at visual line boundaries, Yuri D'Elia, 2017/03/18