Closed Bug 1480863 Opened 3 years ago Closed 3 years ago
Shaped extension menus have black border instead of transparency (aren't shaped) with accelerated compositing
STR: use a WebExtension with a menu, like HTTPS Everywhere, and click on it. Expected: The menu is displayed and the region around the menu is transparent. Actual: with basic compositing, as expected; with accelerated compositing the area around the menu is opaque black. This is, I think, what bug 1406533 fixed for basic compositing. This might be a duplicate of part of bug 1478454.
I should add that this is on Debian unstable with the NVIDIA proprietary driver. I can also test with Mesa/amdgpu and maybe Mesa/intel if needed, but I'd have to reboot for it.
This happens with panels of OOP webextensions when using OpenGL or WebRender. (Note: bug 1357487, which turned OOP webextensions on, has been backed out because of an unanswered needinfo.) If this bug is about a non-transparent panel border with * layers.acceleration.force-enabled;true: it's a dupe of bug 1479135 (which has been duped over to bug 1479181). * gfx.webrender.all;true: it's dupe of bug 1479181. > Debian unstable with the NVIDIA proprietary driver bug 1478454 is about getting a fallback from WebRender to OpenGL ("Compositing on about:support) when you hover an icon of an OOP webextension (e.g. uBlock Origin) while using a proprietary Nvidia driver on Linux.
Status: NEW → RESOLVED
Closed: 3 years ago
Resolution: --- → DUPLICATE
Duplicate of bug: 1479181
I tried with both WebRender and non-WebRender layers.acceleration.force-enabled, and both cases reproduced it, but the WebRender case had fallen back to regular OpenGL (according to about:support) because of bug 1478454 (I assume).
See Also: → 1096903
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