Re: [v3.7-rcx] drm/i915: *ERROR* Timed out waiting for forcewake old ack to clear

On Tue, 27 Nov 2012 17:29:36 +0100, Jörg Otte jrg.otte@gmail.com wrote:

At boot-up with newer kernels (at least v3.6.x, v3.7-rc) I always see following on the bootup-display:

3.7-rcx: [drm:__gen6_gt_force_wake_mt_get] *ERROR* Timed out waiting for forcewake old ack to clear. 3.6.x: [drm:__gen6_gt_force_wake_mt_get] *ERROR* Force wake wait timed out

This is harmless error, just reporting a one-time conflict with the state leftover by the BIOS. The fix is queued for 3.8.

commit 16995a9fe140802c026c2ce17bf7e232f86d57ab Author: Chris Wilson chris@chris-wilson.co.uk Date: Thu Oct 18 11:46:10 2012 +0100

drm/i915: Clear FORCEWAKE when taking over from BIOS -Chris