Still broken in WebKitGTK 2.43.3. The web inspector works fine in a freshly-launched Epiphany. I think it breaks only after Epiphany has been open for a while.

Dunno if related or not, here the inspector server is broken. When i click on a target to inspect, the window opens but nothing renders, there is a webview (mouse cursor changes) when i move the mouse around in that window, but nothing renders. In journal: Failed to create GBM buffer of size 0x0: Invalid argument

(In reply to Philippe Normand from comment #2) > Failed to create GBM buffer of size 0x0: Invalid argument That one is bug #265154

Still broken. I noticed this again today using 2.44.2 in Ephy Tech Preview.

So a pattern seems to be: this bug never occurs in a newly-launched Epiphany process. If the Epiphany process has been around for a while, it often occurs, but not reliably. Once it starts happening, the web inspector will never work again until Epiphany is closed and restarted.

Pretty sure this is occurs only under Flatpak and has the same underlying cause as bug #201507. We fixed that one by papering over the crash, but we never figured out what is actually wrong (except in the extreme case at the bottom of the bug report where my entire GL extension was missing, which is surely not the usual case) and Carlos left a warning that rendering would still be broken.

Still seeing this with WebKitGTK 2.50.0, almost every time I open the web inspector. Here's webkit://gpu in case it helps: { "Version Information": { "WebKit version": "WebKitGTK 2.50.0 (tarball)", "Operating system": "Linux 6.17.0-0.rc6.49.fc43.x86_64 #1 SMP PREEMPT_DYNAMIC Mon Sep 15 15:11:41 UTC 2025 x86_64", "Desktop": "GNOME", "GStreamer version": "1.26.5 (build) GStreamer 1.26.5 (runtime)", "GTK version": "4.21.0 (build) 4.21.0 (runtime)" }, "Display Information": { "Identifier": "1", "Type": "Wayland", "Screen geometry": "0,0 2560x1440", "Screen work area": "0,0 2560x1440", "Device scale": "1", "Depth": "24", "Bits per color component": "8", "Font Scaling DPI": "96", "Screen DPI": "93.10378024028846", "VBlank type": "DRM", "VBlank refresh rate": "59Hz", "DRM Primary Node": "/dev/dri/card1", "DRM Render Node": "/dev/dri/renderD128" }, "API": "OpenGL ES 2 (libepoxy)", "Hardware Acceleration Information": { "Policy": "always", "WebGL enabled": "Yes", "2D canvas": "Accelerated", "Renderer": "DMABuf (Supported buffers: Hardware, Shared Memory)", "Buffer format": 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Possibly related to https://github.com/flatpak/flatpak/issues/5570