Disable GPU compositing in CEF (#4825)

Lpsd · web-flow · commit cea9dea7c8c4 · 2026-04-19T14:34:14.000+01:00
Potential fix for regressions in #4634
diff --git a/Client/cefweb/CWebApp.cpp b/Client/cefweb/CWebApp.cpp
@@ -101,10 +101,13 @@ namespace
         if (disableGpu)
         {
             commandLine->AppendSwitch("disable-gpu");
-            // Also disable GPU compositing when GPU is disabled
-            commandLine->AppendSwitch("disable-gpu-compositing");
         }
 
+        // Disable GPU compositing in all cases.
+        // This keeps Chromium's compositor on the software path even when GPU
+        // rendering stays enabled for other browser pipelines.
+        commandLine->AppendSwitch("disable-gpu-compositing");
+
         // Hardware video decoding - enable when GPU is enabled and video acceleration is requested
         if (!disableGpu && enableVideoAccel)
         {

Original file line number	Diff line number	Diff line change
`@@ -101,10 +101,13 @@ namespace`
`101`	`101`	`if (disableGpu)`
`102`	`102`	`{`
`103`	`103`	`commandLine->AppendSwitch("disable-gpu");`
`104`		`- // Also disable GPU compositing when GPU is disabled`
`105`		`- commandLine->AppendSwitch("disable-gpu-compositing");`
`106`	`104`	`}`
`107`	`105`
	`106`	`+ // Disable GPU compositing in all cases.`
	`107`	`+ // This keeps Chromium's compositor on the software path even when GPU`
	`108`	`+ // rendering stays enabled for other browser pipelines.`
	`109`	`+ commandLine->AppendSwitch("disable-gpu-compositing");`
	`110`	`+`
`108`	`111`	`// Hardware video decoding - enable when GPU is enabled and video acceleration is requested`
`109`	`112`	`if (!disableGpu && enableVideoAccel)`
`110`	`113`	`{`