On Fri, Mar 22, 2013 at 2:57 PM, Fabrice Delente <delentef at gmail.com> wrote: > I rebooted with drm.debug=0xe but /sys/kernel/debug/dri/0/i915_error_state > is not available, how do I activate it? You need to enable debugfs in the kernel configuration and then also mount it with # mount -t debugfs debugfs /sys/kernel/debug Cheers, Daniel -- Daniel Vetter Software Engineer, Intel Corporation +41 (0) 79 365 57 48 - http://blog.ffwll.ch