I feel like we should be doing something like this to fix this issue. https://gitlab.gnome.org/GNOME/gdm/-/merge_requests/310
I've backported the patch onto a PPA. This has builds both for Ubuntu 25.04 and Ubuntu 24.04 (I reproduced above on Ubuntu 24.04). Maybe you can see if this helps. https://launchpad.net/~superm1/+archive/ubuntu/lp2115451 -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to mutter in Ubuntu. https://bugs.launchpad.net/bugs/2115451 Title: On dual-amdgpu machines the login screen starts with simpledrm and switches to amdgpu one second later, causing freezes To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/2115451/+subscriptions -- desktop-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
