https://bugs.freedesktop.org/show_bug.cgi?id=98333
--- Comment #4 from Dillon Dixon dillondixon@gmail.com --- Thanks for responding to my ticket! Sorry, I didn't have time to record down all the relevant information until recently.
Anyway, the 60 Hz mode is missing completely. I attached the relevant logs to the ticket.
I tried updating my clone of the kernel repo up to the commit at the end of this post, but the issue persists. I will try the suggested patch and respond as to whether or not it makes a difference for me.
Thanks again!
commit 019b84cce0585498430215503a50633d2d6a7fc8 Author: Alex Deucher alexander.deucher@amd.com Date: Wed Oct 26 16:41:39 2016 -0400
drm/amdgpu: add support for new smc firmware on tonga
Newer tonga parts require new smc firmware.
Reviewed-by: Eric Huang JinHuiEric.Huang@amd.com Signed-off-by: Alex Deucher alexander.deucher@amd.com Cc: stable@vger.kernel.org