Thanks, Daniel — that context is very helpful. To confirm: this Lenovo Mullins/Kabini system is running Ubuntu 24.04 with kernel 7.0.0-30-generic, so it’s still on the pre-7.1 behaviour where Sea Islands APUs default to radeon.
After manually switching to amdgpu (via SI/CIK parameters and radeon blacklist), the system becomes fully stable: multi-monitor output works correctly, Chrome/Electron apps stop flickering, and chrome://gpu shows a clean ANGLE + amdgpu pipeline with zero GPU process crashes. So this hardware does behave exactly like the upstream 7.1 change expects. I’m happy to test again once Ubuntu ships a 7.1-based kernel, or provide any additional logs if useful. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2164686 Title: AMD Mullins/Kabini APU incorrectly defaults to radeon instead of amdgpu To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2164686/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
