<div dir="ltr"><div class="gmail_default" style="font-size:small">Hi,<br></div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">as I have been working on fixing few niggles with Qt WebEngine on Flatpak, I suspect the same issues will be encountered when making SFOS Qt update. As far as I know, Qt WebEngine is not supported on Android, so we are on our own with libhybris devices.</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">Issue has been summarized together with the current workaround at <a href="https://bugreports.qt.io/browse/QTBUG-82423">https://bugreports.qt.io/browse/QTBUG-82423</a> . In short, </div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">- with hardware acceleration, you jittering of the web page while you scroll or play video</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">- all Snapdragon workarounds from Chromium source are not applied as they all check for "os=android". </div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">When I tried to apply workarounds manually via QTWEBENGINE_CHROMIUM_FLAGS variable, they didn't help. What worked was </div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small"><p>QTWEBENGINE_DISABLE_GPU_THREAD=1</p>
<p>QTWEBENGINE_CHROMIUM_FLAGS="--disable-gpu-compositing
--num-raster-threads=1 --enable-viewport
--main-frame-resizes-are-orientation-changes
--disable-composited-antialiasing"</p><p>That way I lost GPU composing, but got other parts of HW accelerated rendering, WebGL sites working. Hopefully, this info will help.</p><p>Cheers,</p><p>Rinigus</p></div></div>