Please test latest mainline kernel: https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.8-rc3/
If mainline kernel doesn't work, please file an upstream bug at https://gitlab.freedesktop.org/drm/amd/issues -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1870971 Title: [amdgpu] (X)ubuntu 20.04 boots to black screen on Lenovo Ideapad L340-17API when in battery mode To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1870971/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs