https://bugs.freedesktop.org/show_bug.cgi?id=99784

--- Comment #16 from lazanet96@gmail.com --- Created attachment 131532 --> https://bugs.freedesktop.org/attachment.cgi?id=131532&action=edit "dmesg | grep drm" output (4.12.rc2, libdrm 2.4.8)

I updated libdrm and xorg from edgers ppa, and drm-tip kernel is now able to boot. I attached latest "dmesg | grep drm" output. I went trough logs while changing drm.debug mask, but have failed to see any errors.

Package versions are: libdrm-radeon1/artful,now 2.4.80+git20170524.eeb51df3-0ubuntu0ricotz, 4.12.0-994-lowlatency kernel, xorg 1:7.7+19 with xserver-xorg-video-radeon 1:7.9.0-0ubuntu1