219431 2020-12-02 07:17:54 -0800 GPU Process WindowServer blocking prevents CGL 2020-12-04 07:44:07 -0800 1 1 1 Unclassified WebKit WebGL Other Unspecified Unspecified RESOLVED FIXED InRadar P2 Normal --- 217211 217216 1 kkinnunen kkinnunen darin dino pvollan webkit-bug-importer oldest_to_newest 1711328 0 kkinnunen 2020-12-02 07:17:54 -0800 GPU Process WindowServer blocking prevents CGL Currently block is done with setApplicationIsDaemon I managed to use the Web Process method of blocking WindowServer on iMac Pro I failed to use the method on MacBook with Intel/AMD 1711329 1 webkit-bug-importer 2020-12-02 07:18:03 -0800 <rdar://problem/71893390> 1711662 2 415299 kkinnunen 2020-12-03 06:00:44 -0800 Created attachment 415299 Patch 1711728 3 415299 darin 2020-12-03 10:59:00 -0800 Comment on attachment 415299 Patch View in context: https://bugs.webkit.org/attachment.cgi?id=415299&action=review > Source/WebKit/GPUProcess/mac/GPUProcessMac.mm:48 > + auto retval = CGSSetDenyWindowServerConnections(true); Not really WebKit style to use the name "retval" and I would prefer "result", "returnValue", or "errorCode", or even "error". 1711990 4 415406 kkinnunen 2020-12-04 04:17:59 -0800 Created attachment 415406 Patch 1711992 5 kkinnunen 2020-12-04 04:20:47 -0800 Thanks for the review. Per Arne found a proper fix. The GPU Process property list was missing allowing the automatic graphics switching. It's unknown if this is intended limitation or accidental error in CGL. 1711993 6 415407 kkinnunen 2020-12-04 04:22:11 -0800 Created attachment 415407 Patch 1711999 7 415407 pvollan 2020-12-04 05:02:12 -0800 Comment on attachment 415407 Patch R=me. I think the build failures are unrelated. 1712021 8 ews-feeder 2020-12-04 07:44:06 -0800 Committed r270430: <https://trac.webkit.org/changeset/270430> All reviewed patches have been landed. Closing bug and clearing flags on attachment 415407. 415299 2020-12-03 06:00:44 -0800 2020-12-04 04:17:55 -0800 Patch bug-219431-20201203160042.patch text/plain 2002 kkinnunen U3VidmVyc2lvbiBSZXZpc2lvbjogMjcwMzkyCmRpZmYgLS1naXQgYS9Tb3VyY2UvV2ViS2l0L0No YW5nZUxvZyBiL1NvdXJjZS9XZWJLaXQvQ2hhbmdlTG9nCmluZGV4IDJmZTU2NmE0YjE1YmQ0YmVl Yjk3ZDBiNzAxOWU0M2NlZjFlYWEyMGUuLmY5MjIzMWMwZTY5YzliZGJjNmMyZDhiMjEzOTJhZGNk M2VhODU1ZGEgMTAwNjQ0Ci0tLSBhL1NvdXJjZS9XZWJLaXQvQ2hhbmdlTG9nCisrKyBiL1NvdXJj ZS9XZWJLaXQvQ2hhbmdlTG9nCkBAIC0xLDMgKzEsMTYgQEAKKzIwMjAtMTItMDMgIEtpbW1vIEtp bm51bmVuICA8a2tpbm51bmVuQGFwcGxlLmNvbT4KKworICAgICAgICBHUFUgUHJvY2VzcyBXaW5k b3dTZXJ2ZXIgYmxvY2tpbmcgcHJldmVudHMgQ0dMCisgICAgICAgIGh0dHBzOi8vYnVncy53ZWJr aXQub3JnL3Nob3dfYnVnLmNnaT9pZD0yMTk0MzEKKyAgICAgICAgPHJkYXI6Ly9wcm9ibGVtLzcx ODkzMzkwPgorCisgICAgICAgIFJldmlld2VkIGJ5IE5PQk9EWSAoT09QUyEpLgorICAgICAgICBC bG9jayBHUFUgcHJvY2VzcyBXaW5kb3dTZXJ2ZXIgY29ubmVjdGlvbnMgdGhlIHNhbWUgd2F5IGFz 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