#webkit (for #epiphany) needed a small patch (https://trac.webkit.org/changeset/273960/webkit) to leverage the #gstreamer work that accelerates #h264 on the #librem5 (https://social.librem.one/@agx/105799071793016596). Resource usage did drop but not as much as i'd expected so there's more debugging needed.
The power difference with #webkit / #epiphany watching the Big Buck Bunny demo with #hantro VPU enabled is about 500mA less power at @1920 x1080 and it renders smoothly while it stutters badly in software.
Situation improves further when bringing the #arm64 #pixman optimizations forward to #PureOS #Byzantium (https://gitlab.freedesktop.org/pixman/pixman/-/merge_requests/20) which were only in amber-phone and which everyone needs to pull since it's not merged in #pixman upstream.
and the cool thing is i can debug this directly on the #librem5 by using #GNOME's #sysprof with attached screen and keyboad. 🎁
that should read mW not mA.
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Situation improves further when bringing the #arm64 #pixman optimizations forward to #PureOS #Byzantium (https://gitlab.freedesktop.org/pixman/pixman/-/merge_requests/20) which were only in amber-phone and which everyone needs to pull since it's not merged in #pixman upstream.