Bug#1052055: Webkit output fully white

[Alberto Garcia]

On Sat, Sep 16, 2023 at 06:29:52PM +0200, R Pi wrote:

> KMS: DRM_IOCTL_MODE_CREATE_DUMB failed: Permission denied
> Failed to create GBM buffer of size 1024x741: Permission denied

Hello and thanks for the bug report.

What happens if you set WEBKIT_DISABLE_DMABUF_RENDERER=1 in
the environment? If it works, does it also work if you set
WEBKIT_DMABUF_RENDERER_DISABLE_GBM=1 instead?

Also, please try with the MiniBrowser (with and without that variable)
to see if it makes a difference.

   /usr/lib/x86_64-linux-gnu/webkit2gtk-4.0/MiniBrowser
   /usr/lib/x86_64-linux-gnu/webkit2gtk-4.1/MiniBrowser
   /usr/lib/x86_64-linux-gnu/webkitgtk-6.0/MiniBrowser

The first two should behave the same, I'm curious if there's a
difference with the third one.

Thanks!

Berto