[Webkit-unassigned] [Bug 261653] New: [GTK] 2.42.0 supports WebGL/2 with compositing disabled?

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Sun Sep 17 07:53:53 PDT 2023


https://bugs.webkit.org/show_bug.cgi?id=261653

            Bug ID: 261653
           Summary: [GTK] 2.42.0 supports WebGL/2 with compositing
                    disabled?
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebKitGTK
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: jmason at ibinx.com
                CC: bugs-noreply at webkitgtk.org

2.42.0 tarball

ENABLE_X11_TARGET=ON
USE_GBM=OFF

In 2.40.x and earlier, WebGL (and later WebGL2) functioned with compositing mode disabled (WEBKIT_DISABLE_COMPOSITING_MODE=1)

In 2.42.0, I am finding WebGL/2 is not functioning.  get.webgl.org reports that the browser supports WebGL, but it is disabled or unavailable.  The get.webgl.org tests worked in 2.40.x and earlier with hardware compositing disabled.

If WebGL is no longer working because hardware compositing is disabled, it is effectively a regression, as this worked in previous releases.

(I have to disable compositing mode, as I have an older nVIDIA card and driver.  I am unable to use GBM for the same reason.)

Thanks for your advice and for your excellent work on the GTK port!  It is most appreciated.

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