This affects me too - Ubuntu MATE 20.04, Lenovo T495 (so AMD graphics/amdgpu).
Boots fine with power supply connected, but running from battery, laptop POSTs ok, displays grub, displays boot msgs but then screen goes blank. Happy to provide logs if you let me know what you need, I can SSH into the laptop to retrieve whatever is required. Thanks. -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-amdgpu in Ubuntu. https://bugs.launchpad.net/bugs/1872452 Title: [amdgpu] Boot into black screen without power supply (Kubuntu on AMD / Thinkpad T495) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/kwin/+bug/1872452/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : [email protected] Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
