[Bug 67243] [ILK]igt/kms_render/gpu-blit randomly causes system hang

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=67243

Imre Deak <imre.deak at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #85190|0                           |1
        is obsolete|                            |

--- Comment #21 from Imre Deak <imre.deak at gmail.com> ---
Created attachment 85246
  --> https://bugs.freedesktop.org/attachment.cgi?id=85246&action=edit
debug ironlake_crtc_disable-2

(In reply to comment #19)
> Created attachment 85229 [details]
> dmesg with patch debug ironlake_crtc_disable

Seems to hang in intel_disable_plane. According to Ville, disabling clocks
while having planes on might cause this. I checked and our disable sequence for
ilk is not according to spec, we should disable planes before disabling the
port.

Could you try again with all of the following kernel/igt patches applied:
- fix modeset disable sequence
- debug ironlake_crtc_disable-2
- disable steps one-by-one (all of 1-5)

and send a full dmesg with drm.debug=0xf?

-- 
You are receiving this mail because:
You are the QA Contact for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.freedesktop.org/archives/intel-gfx-bugs/attachments/20130905/43c931f4/attachment.html>