Hi, I recently noticed that on current kernels I lose video output from my Blackbird's AST2500 BMC after a reboot, which makes it difficult to boot the system again (the video output will come on only after Linux is booted again).
With Linux 6.6 and earlier, there is no problem rebooting, everything is fine. I bisected to this commit: ce3d99c8349584bc0fbe1e21918a3ea1155343aa is the first bad commit commit ce3d99c8349584bc0fbe1e21918a3ea1155343aa Author: Douglas Anderson <[email protected]> Date: Fri Sep 1 16:39:53 2023 -0700 drm: Call drm_atomic_helper_shutdown() at shutdown time for misc drivers This commit does not revert cleanly on 6.14, but I can easily undo the changes this commit made to the ast driver, and this is enough to restore working behaviour. Let me know if you need any more info! Thanks, Nick
