Bug 262779

Summary:	[GTK] Display VBlank monitor stops when the monitor is off
Product:	WebKit	Reporter:	Carlos Garcia Campos <cgarcia>
Component:	WebKitGTK	Assignee:	Carlos Garcia Campos <cgarcia>
Status:	RESOLVED FIXED
Severity:	Normal	CC:	bugs-noreply
Priority:	P2	Keywords:	Gtk
Version:	WebKit Nightly Build
Hardware:	Unspecified
OS:	Unspecified

Description Carlos Garcia Campos 2023-10-06 05:03:35 PDT

When the monitor we are using to get the vblank signal is off or suspended, drmWaitVBlank fails with -EPERM. That's considered fatal error and we stop sending the signal to the web process, so that when the monitor is back we don't get any display update. This only happens in the few cases in which the view is not notified to be non-visible, and the vblank monitor keeps running. In those cases we can just handle the error and keep trying after sleeping for a while until it successes again.

Comment 1 Carlos Garcia Campos 2023-10-06 05:08:10 PDT

Pull request: https://github.com/WebKit/WebKit/pull/18759

Comment 2 EWS 2023-10-06 06:40:45 PDT

Committed 268988@main (b727a1776a5f): <https://commits.webkit.org/268988@main>

Reviewed commits have been landed. Closing PR #18759 and removing active labels.