@Fritz: What did you do to get the "default"/i915(??) driver in your TW install? Was it something on the kernel command line in GRUB during the initial boot of the install media, a YaST/zypper install of a package after the installed TW was up and running, both, or neither? The person who I believe is the main nouveau maintainer seems to be working on the problem, and I'm hoping he comes up with a permanent fix. See the new thread at https://gitlab.freedesktop.org/drm/nouveau/-/issues/242 for details. For now, my hacked-in patch seems to be working for me on TW. I still have to see what I can do with Leap 15.5. But as per my latest #19 post at https://forums.opensuse.org/t/older-laptop-tumbleweed-nvidia-and-nouveau-dri..., I'm trying to understand what the "best" driver is out of nouveau, "default", i915, "nv", the community repo updates of the abandoned-by-Nvidia official drivers, or maybe others I don't even know about. :( I'm sure it's different for each GPU/card. Like you, I'm not happy with the idea of Linux distros dropping support for older hardware ("buy a newer graphics card") but since almost all of this is free open-source software, if nobody volunteers to maintain a particular capability then that's what happens. I can't demand otherwise, but hope the support continues, especially when the fixes might be simple and have already been posted.