# Objective Zed on X11 could crash with `index out of bounds: the len is 0 but the index is 0` in `WgpuAtlas::get_texture_info` right after recovering from a lost GPU device (Sentry ZED-BVQ, Linear FR-488). ## Solution When the device is lost, `X11Window::draw` recreates the renderer, which clears the sprite atlas, and sets `force_render_after_recovery` so the next frame rebuilds the scene instead of replaying the cached one. Only the periodic refresh timer consumed that flag though. An `Expose` event handled in the same event loop turn (a compositor repainting after the same GPU reset, for example) requested a presentation-only frame with `force_render: false`, so GPUI presented the previously rendered scene, whose sprites still pointed at atlas textures that no longer exist. We now consume the flag in `X11WindowStatePtr::refresh`, so every frame request, Expose or timer, forces a full render after recovery. The field is private now so a caller can't bypass it again. ## Self-Review Checklist: - [x] I've reviewed my own diff for quality, security, and reliability - [x] Unsafe blocks (if any) have justifying comments - [x] The content adheres to Zed's UI standards ([UX/UI](https://github.com/zed-industries/zed/blob/main/CONTRIBUTING.md#uiux-checklist) and [icon](https://github.com/zed-industries/zed/blob/main/crates/icons/README.md) guidelines) - [ ] Tests cover the new/changed behavior - [x] Performance impact has been considered and is acceptable --- Release Notes: - Fixed a crash on Linux (X11) that could occur when a window was redrawn immediately after recovering from a lost GPU device. - [GPUI] Fixed a crash on Linux (X11) when an `Expose` event presented a cached frame immediately after GPU device recovery.
Zed
Welcome to Zed, a high-performance, multiplayer code editor from the creators of Atom and Tree-sitter.
Installation
On macOS, Linux, and Windows you can download Zed directly or install Zed via your local package manager (macOS/Linux/Windows).
Other platforms are not yet available:
- Web (tracking discussion)
Developing Zed
Contributing
See CONTRIBUTING.md for ways you can contribute to Zed.
Also... we're hiring! Check out our jobs page for open roles.
Licensing
Zed source code is licensed primarily under GPL-3.0-or-later, with Apache-2.0 components where marked.
License information for third party dependencies must be correctly provided for CI to pass.
We use cargo-about to automatically comply with open source licenses. If CI is failing, check the following:
- Is it showing a
no license specifiederror for a crate you've created? If so, addpublish = falseunder[package]in your crate's Cargo.toml. - Is the error
failed to satisfy license requirementsfor a dependency? If so, first determine what license the project has and whether this system is sufficient to comply with this license's requirements. If you're unsure, ask a lawyer. Once you've verified that this system is acceptable add the license's SPDX identifier to theacceptedarray inscript/licenses/zed-licenses.toml. - Is
cargo-aboutunable to find the license for a dependency? If so, add a clarification field at the end ofscript/licenses/zed-licenses.toml, as specified in the cargo-about book.
Sponsorship
Zed is developed by Zed Industries, Inc., a for-profit company.
If you’d like to financially support the project, you can do so via GitHub Sponsors. Sponsorships go directly to Zed Industries and are used as general company revenue. There are no perks or entitlements associated with sponsorship.