https://bugs.freedesktop.org/show_bug.cgi?id=108781
--- Comment #10 from jamespharvey20@gmail.com --- Bisecting results are below.
This is an Asus model STRIX-R9390-DC3OC-8GD5-GAMING.
Don't think is relevant, oter than why someone was looking at this code, but this commit immediately trails a bunch of the vkms commits, and the crash/to black screen happens right when amdgpu is attempting to automatically switch to kms.
0d99889109892396a8164bf6dd178e36d3fe3166 is the first bad commit commit 0d99889109892396a8164bf6dd178e36d3fe3166 Author: Ville Syrjälä ville.syrjala@linux.intel.com Date: Thu Jun 28 16:13:07 2018 +0300
drm/fb-helper: Eliminate the .best_encoder() usage
Instead of using the .best_encoder() hook to figure out whether a given connector+crtc combo will work, let's instead do what userspace does and just iterate over all the encoders for the connector, and then check each crtc against each encoder's possible_crtcs bitmask.
v2: Avoid oopsing on NULL encoders (Daniel) s/connector_crtc_ok/connector_has_possible_crtc/
Cc: Dhinakaran Pandiyan dhinakaran.pandiyan@intel.com Cc: Harry Wentland harry.wentland@amd.com Cc: Daniel Vetter daniel.vetter@ffwll.ch Reviewed-by: Daniel Vetter daniel.vetter@ffwll.ch Reviewed-by: Alex Deucher alexander.deucher@amd.com Suggested-by: Daniel Vetter daniel.vetter@ffwll.ch Signed-off-by: Ville Syrjälä ville.syrjala@linux.intel.com Link: https://patchwork.freedesktop.org/patch/msgid/20180628131315.14156-2-ville.s...