Created attachment 15035 [details]
output of lspci -v
I've been experiencing hardlocks in every version since upgrading from i810 1.7.4. The locks occured during lid close or dpms off (e.g., screen saver or manually with xset).
I recently read about the pipe A quirk and indeed
Option "ForceEnablePipeA" "true"
seems to fix the problem.
Created attachment 15036 [details]
output of lspci -vn
Fixed in commit c82d8e51c6ff9522ad0deb33399d13f3d6fef19d, thanks for filing this Colin.