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fix: prevent macOS desktop unlock freeze after display sleep (#745)

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* Restart the GPU process to recover from macOS compositor freezes

macOS display sleep can leave Chromium's GPU-process display link stuck
on a stale display, so the compositor stops producing frames and the
window looks frozen — unresponsive to clicks and keys — even though the
renderer stays alive.

setupDarwinCompositorWatchdog polls the renderer for frame production
and, on a sustained stall while the window is visible and unlocked,
restarts the GPU process so Chromium rebuilds the display link. This
replaces setupDarwinPaintRefresh, whose invalidate/resize nudges did
not address the dead display link.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* Give compositor watchdog a module home

---------

Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Co-authored-by: Mohamed Boudra <boudra.moha@gmail.com>
This commit is contained in:
Yurui Zhou
2026-05-19 10:41:55 +08:00
committed by GitHub
co-authored by Claude Opus 4.7 Mohamed Boudra
parent 5a1c7f266c
commit aaabadb04b
5 changed files with 212 additions and 55 deletions
Download Patch File Download Diff File Expand all files Collapse all files
packages/desktop/src/window/window-manager.ts
-53
View File
@@ -229,59 +229,6 @@ export function setupWindowResizeEvents(win: BrowserWindow): void {
});
}
function refreshChromiumSurface(win: BrowserWindow): void {
if (win.isDestroyed()) {
return;
}
win.webContents.invalidate();
if (win.isMaximized() || win.isFullScreen()) {
return;
}
const [width, height] = win.getSize();
win.setSize(width + 1, height);
setTimeout(() => {
if (!win.isDestroyed()) {
win.setSize(width, height);
}
}, 32);
}
export function setupDarwinPaintRefresh(win: BrowserWindow): void {
if (process.platform !== "darwin") {
return;
}
win.webContents.setBackgroundThrottling(false);
const requestSurfaceRefresh = () => {
if (!win.isDestroyed()) {
win.webContents.invalidate();
}
};
const handleChildProcessGone = (
_event: Electron.Event,
details: { type?: string; reason?: string },
) => {
if (details.type !== "GPU") {
return;
}
console.warn("[window] GPU process gone:", details.reason);
refreshChromiumSurface(win);
};
win.on("restore", requestSurfaceRefresh);
win.on("show", requestSurfaceRefresh);
app.on("child-process-gone", handleChildProcessGone);
win.once("closed", () => {
win.off("restore", requestSurfaceRefresh);
win.off("show", requestSurfaceRefresh);
app.off("child-process-gone", handleChildProcessGone);
});
}
export function buildStandardContextMenuItems(
contents: WebContents,
params: Electron.ContextMenuParams,