https://bugs.freedesktop.org/show_bug.cgi?id=97409
Bug ID: 97409 Summary: Tonga lock up on boot with amd-staging-4.6/7 since drm/amd/dal: track display state based on sink and stream for freesync Product: DRI Version: DRI git Hardware: x86-64 (AMD64) OS: Linux (All) Status: NEW Severity: normal Priority: medium Component: DRM/AMDgpu Assignee: dri-devel@lists.freedesktop.org Reporter: adf.lists@gmail.com
R9285 since below testing amd-staging-4.6/7 I lock on boot as soon as drm loads.
No logging, no sysrq, no display, flashing keyboard.
commit bbc6372f92db837ef30f41eced850c08d91a3ebb Author: Joshua Aberback Joshua.Aberback@amd.com Date: Tue Jul 26 11:58:06 2016 -0400
drm/amd/dal: track display state based on sink and stream for freesync
This is to avoid problems with arrays out of bounds when OS calls a flip on a display that's been removed but on which reset_mode has not been called yet.