https://bugs.freedesktop.org/show_bug.cgi?id=67002
--- Comment #6 from Alex Deucher agd5f@yahoo.com --- (In reply to comment #5)
(In reply to comment #4)
The atombios messages are due to bug 67043. You can revert the patch referenced in that bug to fix that. danvet supposed has a v2 of that patch which doesn't break resume.
Also, does it work any better if you drop all the pm-suspend quirks? You shouldn't need them for KMS.
ok, so reverting the original patch and applying the attached one is the correct order ? or shall it be applied to current source ? - (probably the former) - will try
Either revert the original or apply the new patch, but don't do both. The new patch contains the revert.