https://bugs.freedesktop.org/show_bug.cgi?id=98333
--- Comment #2 from Harry Wentland harry.wentland@amd.com --- I don't have the same monitor but I don't have any problem lighting up with HDMI 2.0 4k 60Hz with Alex's amd-staging-4.7 and the commit from a week ago:
commit 4fa58023f62a95e93f82a25cdceb87b19b69b27f Author: Christian König christian.koenig@amd.com Date: Mon Oct 17 15:34:07 2016 +0200
reservation: revert "wait only with non-zero timeout specified (v3)"
This reverts commit fb8b7d2b9d80e1e71f379e57355936bd2b024be9.
Otherwise signaling might never be activated on the fences. This can result in infinite waiting with hardware which has unreliable interrupts.
Signed-off-by: Christian König christian.koenig@amd.com Reviewed-by: Chunming Zhou david1.zhou@amd.com
If you still see this issue please attach xorg log, dmesg and xrandr output, as Alex suggested.