Bug#1072845: Blank pages since upgrade to WebKitGTK 2.44

Sat Jun 8 21:59:06 BST 2024

Package: epiphany-browser
Version: 43.1-1
Severity: important

Dear maintainer,

since upgrading libwebkit2gtk-4.1-0 from version 2.42.5 to 2.44.2 I'm
having difficulty browsing the web using Epiphany 43.1 on
Debian bookworm (12.5).
Most web pages (except for some very trivial ones) don't render and
only a white canvas is shown.

I attached the output of webkit://gpu at the end of this e-mail.

Other applications also using WebKitGTK (namely Evolution) are not
affected (on my system at least) and still display HTML e-mail correctly.

As a workaround setting the WEBKIT_DISABLE_DMABUF_RENDERER=1
environment variable restores the display of web pages in the Epiphany
browser.

Thank you for investigating.

Kind regards,

Dennis

{
    "Version Information": {
        "WebKit version": "WebKitGTK 2.44.2 (tarball)",
        "Operating system": "Linux 6.1.0-21-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.90-1 (2024-05-03) x86_64",
        "Desktop": "MATE",
        "Cairo version": "1.16.0 (build) 1.16.0 (runtime)",
        "GStreamer version": "1.22.0 (build) GStreamer 1.22.0 (runtime)",
        "GTK version": "3.24.38 (build) 3.24.38 (runtime)"
    },
    "Display Information": {
        "Identifier": "1",
        "Type": "X11",
        "Screen geometry": "0,0 1440x900",
        "Screen work area": "0,24 1440x852",
        "Depth": "24",
        "Bits per color component": "8",
        "Font Scaling DPI": "96.0244140625",
        "Screen DPI": "110.48275454819004",
        "VBlank type": "Timer",
        "VBlank refresh rate": "60Hz",
        "DRM Device": "/dev/dri/card0",
        "DRM Render Node": "/dev/dri/renderD128"
    },
    "API": "OpenGL (libepoxy)",
    "Hardware Acceleration Information": {
        "Policy": "on demand",
        "WebGL enabled": "Yes",
        "Renderer": "DMABuf (Supported buffers: Hardware, Shared Memory)",
        "Native interface": "None"
    },
    "Hardware Acceleration Information (Render process)": {
        "Platform": "GBM",
        "GL_RENDERER": "NVAC",
        "GL_VENDOR": "nouveau",
        "GL_VERSION": "OpenGL ES 3.0 Mesa 22.3.6",
        "GL_SHADING_LANGUAGE_VERSION": "OpenGL ES GLSL ES 3.00",
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        "EGL_VERSION": "1.4",
        "EGL_VENDOR": "Mesa Project",
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    }
}