text gets truncated when pasting many lines from clipboard

[MagnusWeis]

Larger texts pasted from the clipboard into wayland apps (neovim running in ghosttty, kitty and other terminals, gedit) get truncated. No issues when starting gedit as "GDK_BACKEND=x11 gedit".
Tried it with wl-paste/cliphist and copyq, both show the same behaviour. Everything works fine with gnome on wayland.

Could someone please try to copy/paste a larger text into neovim running under hyprland?
https://fr.wikipedia.org/wiki/Guerre_de_Canudos seems to be one of the largest wikipedia articles to try...
Thanks.

[fufexan]

$ wl-paste | wc -c                          
711139

Pasting it into an editor (helix running in foot) and checking with the browser, I see everything was copied fine.

[MagnusWeis]

Thanks Mihai, this helped a lot!
I did some more experiments...

When I copied the text, e.g., the wiki page mentioned before, out of a firefox-based browser (librewolf), everything worked nicely.
Copying the same text out of a chromium-based browser (thorium, brave), only part of the text got pasted.
Inspired by your response, I played with wl-paste instead of pasting the clipboard into an editor

❯ wl-paste | wc -c
1
❯ wl-paste | wc -c
65537

wl-paste stops after just a single character (which is 0a) and the second wl-paste call never returns more than 65537 characters (chromium-based).

Using copyq, I saw the entire text in the copyq window no matter from which browser it came.
When then pasted into an editor, it got truncated again when it was from a chromium browser.
All browsers were run under wayland protocol.

Not sure if this makes any sense...

[fufexan]

I've tried pasting that same Wikipedia article from chromium into both wc and helix. It seems chromium sends less characters, because it doesn't send all the extra newlines that firefox is sending. But the text content seems to be the same.

$ wl-paste | wc -c
710655

Note that I don't use copyq or any other clipboard management software, except for wl-copy and wl-paste.

I've also tried gedit in wayland and x11 mode, both worked fine and got the whole clipboard.

[MagnusWeis]

Thanks again for testing.

Last test: when I started two instances of gedit -s, one with GDK_BACKEND=x11 and one without and copied any longer text out of a chromium browser to the clipboard, it gets truncated in the wayland gedit but not in the x11 gedit instance (2x paste from a single copy).

No worries, I will keep my installation up to date. Maybe the issue disappears some day.
Thanks to you response, I found a workaround for now.

Hava a nice day
Magnus