On 10/23/26 14:34, Stephen Gallagher wrote:
On Fri, Oct 23, 2026 at 4:02 AM Martin Stransky via devel
<[email protected]> wrote:
Guys,
would love to get some data from real usage. If you feel brave enough
you can flip Firefox HDR support and try that. You don't need an actual
HDR hardware, HDR conversion is done at compositor level.
Firefox in HDR mode uses direct video / WebGL / canvas offload to
compositor as an overlay so you may experience more ram usage, video
playback tearing - or better video playback and less power usage.
Please use latest Fedora Firefox (firefox-158.0.1-2.fc44). You need to
flip gfx.color_management.hdr.force_enabled to true at about:config and
restart browser.
Please file any bugs at https://bugzilla.mozilla.org/ and CC me there
(as [email protected] as I use a private mail due to CSB migration).
For clarification: is this likely to have an impact on general
performance or will this only be relevant if viewing HDR-enabled video
content on some streaming services? Do we know which streaming
services support this and would be good to test on?
All video / canvas rendering and WebGL (WebGPU?) is offloaded to
compositor as overlay so you may see slightly better results with
playback / fullscreen for instance.
--
Martin Stransky
Software Engineer / Red Hat, Inc
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