Quote:
Originally Posted by MacDougal
QT_QUICK_BACKEND=software
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I have great luck with QT_QUICK_BACKEND=software on Linux systems with proprietary nvidia drivers (and Qt6.8+). It makes QWebEngine rendering on my system (which is not underpowered in the least) positively snappy again. It also gets rid of the annoying "driver does not support GBM" warning. But I don't have to use QTWEBENGINE_CHROMIUM_FLAGS=--disable-gpu in that situation. It renders fine--it's just sluggish.
On Windows, I find that QT_QUICK_BACKEND=software shifts any and all GPU QWebEngine hardware usage to the CPU regardless of whether QTWEBENGINE_CHROMIUM_FLAGS=--disable-gpu is set or not.