I noticed this bug on an Lenovo Ideapad S340-14API. The system runs Mint 20.2 with Kernel 5.4.0.89, but I upgraded, because I had the problem with the previous Mint version as well. Plugging in power supply lets the system boot into graphics mode. It also helps to boot into the rescue mode via grub and then just say resume.
-- 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 [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
