[STILL-UNSOLVED] Firefox mouse hovering bug in Kwin X11

Babiz · Last edited by Babiz on Tue Mar 19, 2024 8:55 pm; edited 2 times in total

Hi folks,

in my first post, I will pay attention to this super-tedious-bug, afflict Firefox on my Gentoo installation since atleast one year ago, I'll never fixed, but I'd really want to know if I'm alone or it is happen to you...
:roll:

See here a short video of this: https://youtu.be/QykmBVEQu1A
:arrow:

So, you can see this bug happen for "unknown reason", when you switch full/resize window borders and even you connect external monitor/switch to screens in X11 window and KWin compositor.
All object menu in Firefox is off to mouse hovering, and so on main frame, this end to unusable web surfing.
I'm looking for a kind of fix, but it's hard to find for normal user.
One way to temporally solve problem is, go to "Help" menu entry and restarting in safe mode and after popup window tell to restore firefox, go ahead to restore. Unlike it resets some kind of data, cookies etc, looks like very hunger to me. But is clear, for me, this bug store some data on local profile and make mouse hover go crazy, lol.
Thank you to everyone who want join this cause and help to understand where is the bug.[/bug]

mrbassie · l33t Joined: 31 May 2013 Posts: 772 Location: over here

I've seen the same thing happen in a steam game if it's switched from fullscreen to windowed or if it spazzes and decides to forget it's resolution. Worse in fact, it can be half an inch off.

You mentioned switching size/monitorin the video description box. It may not be firefox at fault, I've certainly never seen this with firefox.
_________________
Bus conductors learned to code.

Babiz · Posted: Sun Feb 18, 2024 6:44 pm Post subject:

Babiz · Posted: Fri Mar 08, 2024 5:34 pm Post subject:

Hi guys, I want to post other detail for this kwin issue, I take some screenshot if you dont'want to see YouTube video link at first post.
https://postimg.cc/s1V3xJ9b

This not happen when Firefox is full window size mode, only if window is resized then wrong cursor offset appear.
Other thing I see this is triggered among X11 video setting changes, like external HDMI monitor is connected or so, kscreen 2 is active and manage screens.

Currently my system profile is set to:

Babiz · Posted: Sun Mar 17, 2024 10:49 pm Post subject:

Hi guys, this issue look solved on my machine and Firefox >=123.0.1 build.

Thank you to Firefox Gentoo team and KDE Plasma team dev's for our hard work on this nice pieces of softwares.
Regards.

Babiz · Posted: Tue Mar 19, 2024 9:06 pm Post subject:

Sorry guys, today I see bug still here, on current Firefox release, only thing I do is watching movie from Prime Video, on external display (DP-1) and rebooted.

After reboot open Firefox and see window frame off screen on laptop (eDP-1) and cursor hover messed up, whenI click to "maximize" button, window fits normal and hover of objects in it returns to normal, but if I try to restore back to window floating on desktop, mouse hover get messed again!

Cheers

Edit:
Other thing I check after every logout/login changes;
Kscreen 2 service disabled/enabled: still issue, no luck.
External screen disabled/enabled: still issue, no luck.
Firefox hardware accel, disabled/enabled: still issue, no luck.

Kwin don't remember window position of Firefox, if I close at full window size (maximized) it's re poen as windowed float mode.

Next I try to reinstall Firefox sometimes will fixing mouse cursor hover, I'll try tomorrow.