A similar fix to #199059 works for me. I enabled the dpms_suspend and radeon_off quirks for my product ID (2652), and now the display turns off.
-- Thinkpad A31 backlight stays on during suspend https://bugs.launchpad.net/bugs/215111 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
