https://bugs.freedesktop.org/show_bug.cgi?id=57567
--- Comment #12 from Vladimir <bobahu4 at gmail.com> --- I found the exact commit that causes this bug http://kernel.ubuntu.com/git?p=ubuntu/ubuntu-quantal.git;a=commit;h=8f53b5444a25b5be3bfe0164316f9bc7845279c9 drm/radeon: properly handle mc_stop/mc_resume on evergreen+ (v2) BugLink: http://bugs.launchpad.net/bugs/1091251 commit 62444b7462a2b98bc78d68736c03a7c4e66ba7e2 upstream. - Stop the displays from accessing the FB - Block CPU access - Turn off MC client access This should fix issues some users have seen, especially with UEFI, when changing the MC FB location that result in hangs or display corruption. v2: fix crtc enabled check noticed by Luca Tettamanti Signed-off-by: Alex Deucher <alexander.deucher at amd.com> [ herton: adjust context ] Signed-off-by: Herton Ronaldo Krzesinski <herton.krzesinski at canonical.com> Hope you guys can fix it -- You are receiving this mail because: You are the assignee for the bug. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.freedesktop.org/archives/dri-devel/attachments/20130131/99844bc1/attachment.html>
