TLDR: Once bug 1387764 merges to mozilla-central, anybody running with WebRender enabled on Linux will need to force-enable hardware acceleration (layers.acceleration.force-enabled=true) to keep WebRender enabled.
Long version: Previously the check for enabling WebRender ignored the status of hardware acceleration availability, and so WR was getting enabled even if HWA was disabled. This was not great because it could result in using unstable GPUs and such. This is corrected by the patch in bug 1387764. However, Linux has HWA disabled by default, so this means trying to enable WR on Linux will not work by default. about:support should indicate why, if this happens. To correct it, set layers.acceleration.force-enabled to true on Linux, which will force-enable HWA and allow WR to be enabled as well. As a reminder, if you want to enable WR you can either set gfx.webrender.enabled to true, or you can run with MOZ_WEBRENDER=1 in your environment. Cheers, kats _______________________________________________ dev-platform mailing list dev-platform@lists.mozilla.org https://lists.mozilla.org/listinfo/dev-platform
