Scaling, even integer scaling completely breaks rendering in firefox

[Kommynct]

Hyprland Version

System/Version info

```sh Hyprland, built from branch main at commit 7587cadd0a4e94c9ba42c00307854052798cf9b2 dirty (renderer: add support for gles3.2 screen shaders). Date: Mon Mar 18 00:15:04 2024 Tag: v0.37.1-11-g7587cadd flags: (if any) System Information: System name: Linux Node name: anarchy-desktop Release: 6.8.1-zen1-1-zen Version: #1 ZEN SMP PREEMPT_DYNAMIC Sat, 16 Mar 2024 17:15:23 +0000 GPU information: 06:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. [AMD/ATI] Navi 23 [Radeon RX 6650 XT / 6700S / 6800S] [1002:73ef] (rev c1) (prog-if 00 [VGA controller]) os-release: NAME="Arch Linux" PRETTY_NAME="Arch Linux" ID=arch BUILD_ID=rolling ANSI_COLOR="38;2;23;147;209" HOME_URL="https://archlinux.org/" DOCUMENTATION_URL="https://wiki.archlinux.org/" SUPPORT_URL="https://bbs.archlinux.org/" BUG_REPORT_URL="https://gitlab.archlinux.org/groups/archlinux/-/issues" PRIVACY_POLICY_URL="https://terms.archlinux.org/docs/privacy-policy/" LOGO=archlinux-logo plugins: ```

Bug or Regression?

Bug

Description

Only the top left corner of my display is being rendered properly if i set scaling to 2

How to reproduce

Take a monitor set scaling to 2 notice only the top left of the screen is rendered at all

my full monitor settings in case that's needed:

monitor=HDMI-A-1,2560x1440@60,0x0,2 monitor=DP-1,2560x1440@143.856,1280x0,1 monitor=DP-2,1920x1080@60,3840x0,1

I also use kanshi to switch the monitor that is scaled off and on.

Crash reports, logs, images, videos

No response

[vaxerski]

I use scaling normally on my laptop and it's working just fine?

Maybe try without kanshi?

I've seen a report of this once, but outside of that there are tons of people using scaling and I've never heard this happen outside of that.

[Kommynct]

I uninstalled kanshi but the issue persists,

https://github.com/hyprwm/Hyprland/assets/13646790/5680250e-e2c7-425f-be32-73d691ee1d24

here's a video.

[Kommynct]

Ah, i've found the problem, long ago, in about:config I toggled

widget.wayland.fractional-scale.enabled true

If you enable that, and restart firefox, the issue is reproducible

[vaxerski]

IIRC firefox's fractional-scale is very buggy. That might be a ff issue.

[Kommynct]

I would agree, but I used the option in sway and never had any issues at all.

[vaxerski]

and chromium uses the same protocol and doesn't have issues either :)

[eddiezane]

2024-03-18.02-19-23.mp4 here's a video.

Seeing the same thing in Chrome after updating. I removed --disable-features=WaylandFractionalScaleV1 from ~/.config/chrome-flags.conf and it fixed it.

[MrYuto]

I had this weird rendering issue with firefox developer edition after updating hyprland to 0.37.1 and firefox to 125.0b1 without using scaling or widget.wayland.fractional-scale.enabled . The funny thing is that enabing the fractional scale at least fixed the blured new window with the traces of the mouse icon that remain until you move focus on the window again or when I was entring my password in bitwarden extension popup inside the browser, that specific screen area was not being updated untill you move the mouse.

[Kommynct]

fixed with 0.42.0