1831538 - dwm X11/Nvidia: Choppy scrolling when two window of firefox is open

Status: RESOLVED DUPLICATE of bug 1736245

(Core :: Graphics, defect)

Description

[05kraken]

Attachment: Scrolling comparison left one firefox nightly and right one is regular firefox.

User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:109.0) Gecko/20100101 Firefox/114.0

Steps to reproduce:

I was debugging a flask app, so i open two windows of firefox browser.

Actual results:

After opening two window I felt choppy scrolling on every website i visited. When I closed the other window the scrolling return back to okay.

Expected results:

Firefox performance should not be affected by opening another window of firefox.

Comment 1

[BugBot [:suhaib / :marco/ :calixte]]

The Bugbug bot thinks this bug should belong to the 'Core::Widget: Gtk' component, and is moving the bug to that component. Please correct in case you think the bot is wrong.

Comment 2

[05kraken]

Firefox profile report: https://share.firefox.dev/42uarzI

Comment 3

[05kraken]

This issue happens only when both firefox window has flask app running on localhost:5000.

Comment 4

[Darkspirit]

Thanks for the report! Please open about:support, click on "Copy text to clipboard" and paste it here.

Comment 5

[05kraken]

Attachment: about:support

Comment 6

[Darkspirit]

When I tested this the last time the problem was restricted to X11:
Does it become better if you enable "Force Composition Pipeline" or "Force Full Composition Pipeline" in Nvidia X Server Settings > X Server Display Configuration > Advanced? (bug 1736245)

Wayland (e.g. Sway) should be unaffected.

Comment 7

[05kraken]

I tried enabling "Force full composition pipeline" and scrolling definitely become smoother after enabling it.