Bug 258928

Summary:	[GTK] Offset mouse cursor and jittery / stuttery dragging of the docked Web Inspector on Linux
Product:	WebKit	Reporter:	Jeff Fortin <nekohayo>
Component:	Web Inspector	Assignee:	Nobody <webkit-unassigned>
Status:	NEW ---
Severity:	Normal	CC:	bugs-noreply, inspector-bugzilla-changes
Priority:	P2
Version:	WebKit Local Build
Hardware:	PC
OS:	Linux
See Also:	https://bugs.webkit.org/show_bug.cgi?id=144264 https://bugs.webkit.org/show_bug.cgi?id=258931

Description Jeff Fortin 2023-07-06 07:16:54 PDT

This is mostly the same as bug #144264, but 8 years into the future, on Wayland on Linux, and the symptoms are much more pronounced, so I was told to report it separately.

* It's extremely jittery
* It's extremely slow (it "feels" slow on a graphics standpoint)
* It is decoupled from the mouse cursor, you basically have to do 3x the distance / three attempts to position it to where you want.

This is the video demonstrating the issue on my end: https://youtu.be/D2HDOnXup0k

Comment 1 Jeff Fortin 2023-07-06 07:30:35 PDT

Also, I forgot to mention: this is Epiphany 44.3 with WebKitGTK 2.40.3, running atop GNOME 44.x on Fedora 38 with open source AMD "Pitcairn" Radeon R9 270 graphics, using a normal wired mouse (Logitech MX510, not some fancy high-resolution gamer mouse), default mouse acceleration settings. The mouse cursor size does not affect the observed behavior. GTK animations are turned off (set to "Reduce Animation" in GNOME's Settings).