On Sat, 23 Jul 2011 14:40:36 -0400, Andrew Lutomirski <l...@mit.edu> wrote: > I have a Q67 (DQ67SW board) attached to a Dell U2711 via DP. In > previous kernels, the DP link has worked flawlessly. I just booted > 3.0-final and simultaneously enabled SNA, and now when my screen goes > to sleep I don't get an image back until I power cycle the monitor. > dmesg says: > > [drm:intel_dp_complete_link_train] *ERROR* failed to train DP, > aborting
Jesse put together a set of 7 display port patches around July 7 which were merged just after 3.0-rc6. If you try 3.0-rc6 and find that it works, you should be able to bisect that really quickly; there are only 13 patches post-rc6 in drivers/gpu/drm/i915: $ git bisect start v3.0 v3.0-rc6 -- drivers/gpu/drm/i915 We tested this on as many machines as we could get our hands on, but it's a combinatorial problem between the chipset and the monitor... > I don't know whether this is a 3.0 regression or whether it's > triggered by SNA, but something broke. Yeah, as you noticed, this should have no effect. Please let us know what you find. -- keith.pack...@intel.com
pgpWKigOHeTzD.pgp
Description: PGP signature
_______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/intel-gfx
