I got some flickering with "i915.enable_psr=0", so I've removed it and have installed xf86-video-intel and xf86-video-intel-32bit, which pulled in libvdpau_va_gl1, libvulkan_intel, libxcb-util1-32bit, libXv1-32bit, libXvMC1, and libXvMC1-32bit. I haven't seen any flickering since installing these, but it has been very long. Also...
Am I right that I can switch to the Intel DDX by just installing xf86-video-intel? That's how it has always worked for me. /etc/X11/xorg_pci_ids/modesetting_ids supposedly exists to be able to override it, but it has only ever been a 2 byte placeholder for me.
If I'm reading the following from "inxi -Gxx" right, though, it doesn't look like I am using the Intel DDX after installing it. Graphics: Device-1: Intel UHD Graphics 620 vendor: CLEVO/KAPOK driver: i915 v: kernel bus ID: 00:02.0 chip ID: 8086:3ea0 Device-2: Chicony Chicony USB2.0 Camera type: USB driver: uvcvideo bus ID: 1-7:3 chip ID: 04f2:b649 Display: wayland server: X.Org 1.20.8 compositor: gnome-shell driver: modesetting unloaded: fbdev,vesa alternate: intel resolution: 1920x1080~60Hz s-dpi: 96 OpenGL: renderer: Mesa DRI Intel UHD Graphics 620 (WHL GT2) v: 4.6 Mesa 20.1.3 compat-v: 3.0 direct render: Yes Am I misreading this, or is there something more I need to do to use the Intel DDX? David