RESOLVED FIXED 219431
GPU Process WindowServer blocking prevents CGL 
https://bugs.webkit.org/show_bug.cgi?id=219431
Summary GPU Process WindowServer blocking prevents CGL
Kimmo Kinnunen
Reported 2020-12-02 07:17:54 PST
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
Attachments
Patch (1.96 KB, patch)
2020-12-03 06:00 PST, Kimmo Kinnunen 		no flags
DetailsFormatted DiffDiff
Patch (1.47 KB, patch)
2020-12-04 04:17 PST, Kimmo Kinnunen 		no flags
DetailsFormatted DiffDiff
Patch (1.47 KB, patch)
2020-12-04 04:22 PST, Kimmo Kinnunen 		no flags
DetailsFormatted DiffDiff
Show Obsolete (2) View All Add attachment proposed patch, testcase, etc.
Radar WebKit Bug Importer
Comment 1 2020-12-02 07:18:03 PST
<rdar://problem/71893390>
Kimmo Kinnunen
Comment 2 2020-12-03 06:00:44 PST
Created attachment 415299 [details] Patch
Darin Adler
Comment 3 2020-12-03 10:59:00 PST
Comment on attachment 415299 [details] 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".
Kimmo Kinnunen
Comment 4 2020-12-04 04:17:59 PST
Created attachment 415406 [details] Patch
Kimmo Kinnunen
Comment 5 2020-12-04 04:20:47 PST
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.
Kimmo Kinnunen
Comment 6 2020-12-04 04:22:11 PST
Created attachment 415407 [details] Patch
Per Arne Vollan
Comment 7 2020-12-04 05:02:12 PST
Comment on attachment 415407 [details] Patch R=me. I think the build failures are unrelated.
EWS
Comment 8 2020-12-04 07:44:06 PST
Committed r270430: <https://trac.webkit.org/changeset/270430> All reviewed patches have been landed. Closing bug and clearing flags on attachment 415407 [details].
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