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Partial fix for #1938, add GDK_DEBUG=gl-no-fractional (#4255)

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GSK_RENDERER=opengl does not properly handle fractional scaling and thus
we need to set GDK_DEBUG=gl-no-fractional.

Potential fix for #1938
This commit is contained in:
Mitchell Hashimoto
2025-01-02 15:17:25 -08:00
committed by GitHub
parent 602e4eb606 d203075a2e
commit 8827b6e738
1 changed files with 2 additions and 2 deletions
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4
src/apprt/gtk/App.zig
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@ -111,7 +111,7 @@ pub fn init(core_app: *CoreApp, opts: Options) !App {
// From gtk 4.16, GDK_DEBUG is split into GDK_DEBUG and GDK_DISABLE.
// For the remainder of "why" see the 4.14 comment below.
_ = internal_os.setenv("GDK_DISABLE", "gles-api,vulkan");
_ = internal_os.setenv("GDK_DEBUG", "opengl");
_ = internal_os.setenv("GDK_DEBUG", "opengl,gl-no-fractional");
} else if (version.atLeast(4, 14, 0)) {
// We need to export GDK_DEBUG to run on Wayland after GTK 4.14.
// Older versions of GTK do not support these values so it is safe
@ -126,7 +126,7 @@ pub fn init(core_app: *CoreApp, opts: Options) !App {
// - "vulkan-disable" - disable Vulkan, Ghostty can't use Vulkan
// and initializing a Vulkan context was causing a longer delay
// on some systems.
_ = internal_os.setenv("GDK_DEBUG", "opengl,gl-disable-gles,vulkan-disable");
_ = internal_os.setenv("GDK_DEBUG", "opengl,gl-disable-gles,vulkan-disable,gl-no-fractional");
} else {
// Versions prior to 4.14 are a bit of an unknown for Ghostty. It
// is an environment that isn't tested well and we don't have a