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bug#24463: 25.1; hl-line-mode makes text disappear

From: Alex Branham
Subject: bug#24463: 25.1; hl-line-mode makes text disappear
Date: Mon, 19 Sep 2016 20:14:44 +0000

Thanks for responding.

After more investigation, it turns out that hl-line-mode is not responsible for this - I was having this issue in emacs -Q whenever emacs redrew text (which just happened much more frequently in hl-line-mode). Sometimes it would disappear, and sometimes it would duplicate the last line when scrolling down. I tried using Gnome on Wayland instead of X and did not experience this issue. But other things did not work in wayland.

Since the Arch Wiki (https://wiki.archlinux.org/index.php/intel_graphics) suggests that the kernel modesetting may be better than the intel graphics package, I uninstalled that package just to see if that would fix the issue. After uninstalling and rebooting the computer, I have not experienced this weird disappearing/duplicating text issue.

I don't know enough about this to tell whether this is a bug in that intel graphics package or emacs.

Thanks again!

On Mon, Sep 19, 2016 at 11:39 AM Eli Zaretskii <address@hidden> wrote:
> From: Alex Branham <address@hidden>
> Date: Sun, 18 Sep 2016 19:50:22 +0000
> From emacs -Q:
> M-x global-hl-line-mode
> then open a file and move around with C-n
> Text at the current line disappears seemingly at random. It comes back eventually and/or if I do C-l.
> It does this regardless of major mode and I experienced the behavior in 24.5 and 25.1

I cannot reproduce this at all, with neither of the 2 versions.

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