PCManFM (GTK3) resizes on launch even with animations disabled

[GrabbenD]

Hyprland Version

ab5497a0

Bug or Regression?

Bug

Description

When starting PCManFM (GTK3), there is a visible resize even though animations are disabled when the following conditions are meet:

• Tiled window
• Refresh rate has to be around 144Hz (as it's difficult to see it with 120hz since it happens extremely fast).
• Area in which the window opens has to be greater than 960x400 (to easily spot it)
• Animations off

  hyprctl --batch "\
     keyword animations:enabled 0;\
     keyword decoration:drop_shadow 0;\
     keyword decoration:blur:enabled 0;\
     keyword general:gaps_in 0;\
     keyword general:gaps_out 0;\
     keyword general:border_size 1;\
     keyword decoration:rounding 0"

Video (once again, you need 144Hz to see it):

https://github.com/hyprwm/Hyprland/assets/45666572/3ada75aa-5c4b-4b29-8289-e2bc0eaceaca

If you pause the video at the right moment you can see how it starts as a small window:

How to reproduce

• Hyprland: see above
• Sway: not possible

Crash reports, logs, images, videos

• Distro: Arch Linux
• Package version: pcmanfm-gtk3 1.3.2-1.1

[vaxerski]

• window opens, pcmanfm reports default size of [whatever]
• hyprland goes like "hey resize to this res please"
• pcmanfm hasn't redrawn yet, so hyprland draws it at the original size
• small pcmanfm moment
• pcmanfm finally redraws itself at the proper size
• normal pcmanfm moment

[GrabbenD]

Aw snap Figured it wasn't supposed to happen since I didn't notice it in Sway

With the new pcmanfm-qt rewrite this also happens until you add qt6-wayland pkg and QT_QPA_PLATFORM="wayland;xcb" env (https://github.com/lxqt/pcmanfm-qt/issues/1823#issuecomment-1784935733)

If that's the expected behavior then let's close this ticket 👍🏻

[vaxerski]

it's expected but not ideal.