Hey all, I believe there’s a regression (workaround below) in KDE Plasma that hits Ardour harder than anything else for some reason. XWayland hardware acceleration (“Glamor”) causes a huge spike in GPU use, and slows Ardour to a crawl. It seems to be in step with the upgrade to Plasma 6.7. I haven’t tried downgrading, as I’m a tremendously lazy man. But I wanted to see if anyone else out in the wild has a good solution here? Has been a bit of a recurring theme with plasma - I genuinely don’t think this is an Ardour bug, though it’s impacted more than anything else for me for whatever reason.
AMD Ryzen 9 PRO 6950H
Rembrandt [Radeon 680M]
32GB DDR5 SODIMM
Workaround: Turn off XWayland “Glamor” in KDE Plasma
mkdir -p ~/.config/systemd/user/plasma-kwin_wayland.service.d
cat > ~/.config/systemd/user/plasma-kwin_wayland.service.d/xwayland-software-rendering.conf <<'EOF'
[Service]
Environment=XWAYLAND_NO_GLAMOR=1
EOF
systemctl --user daemon-reload