I'm still unable to boot following the linked directions by removing the vt_handoff, quiet, and splash kernel params and also setting gfxmode to "text". It follows nearly the same behavior black screen, constant hdd activity light on -- the monitor however still detects an input signal, it's just black.
I can boot by using the linked method but also supplying radeon.modeset=0 flag. I'm attaching the dmesg log from that boot up. I'm assuming dmesg output is the "missing information" requested. If there is something else missing please let me know. ** Attachment added: "dmesg-debug.log" https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1568429/+attachment/4706595/+files/dmesg-debug.log -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1568429 Title: 1002:68b8 Radeon won't work with KMS enabled To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1568429/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp