Bug 231946

Summary:	ANGLE OpenGL CGL graphics switching does not work on macOS 12.0
Product:	WebKit	Reporter:	Kimmo Kinnunen <kkinnunen>
Component:	WebGL	Assignee:	Nobody <webkit-unassigned>
Status:	NEW ---
Severity:	Normal	CC:	dino, kbr, kkinnunen, webkit-bug-importer
Priority:	P2	Keywords:	InRadar
Version:	WebKit Local Build
Hardware:	Unspecified
OS:	Unspecified
See Also:	https://bugs.webkit.org/show_bug.cgi?id=231012 https://bugs.webkit.org/show_bug.cgi?id=227408

Description Kimmo Kinnunen 2021-10-19 05:36:45 PDT

ANGLE OpenGL CGL graphics switching does not work on macOS 12.0

angle::GetGpuIDFromDisplayID(kCGDirectMainDisplay) fails because CGDisplayIDToOpenGLDisplayMask(displayID=kCGDirectMainDisplay) returns zero even when sandbox is disabled

Comment 1 Kimmo Kinnunen 2021-10-19 05:37:01 PDT

Should be checked if it works on Catalina

Comment 2 Kimmo Kinnunen 2021-10-19 05:40:38 PDT

To verify on Catalina:
Open Activity Monitor -> Window -> Show GPU History

Navigate to:
http://projects.variable.io/webgl/shader-performance/ 

GPU history window should show big amount of work done on the DGPU

Comment 3 Radar WebKit Bug Importer 2021-10-26 05:37:17 PDT

<rdar://problem/84659198>