When booting with build-in nouveau (KMS enabled) the Tux logos displayed are not recognizable. It looks like incorrect tiling configuration of either source or destination buffer when rendering the logo. Normal fbcon console text displays as expected. This happens with linux-3.7-rc5 and newer (don't know since when). Hardware is MacBookAir with GeForce 9400M (C79) [10de:0870]. (screenshot following later on)
Created attachment 70397 [details] Screenshot
Moving to Nouveau. This issue should be fixed by now, but could you still please test with a recent kernel? You will need patch v4.5 listed in bug #27501 if you want to use acceleration on that card. Otherwise, set nouveau.noaccel=1 and you should be fine.
The bug has been fixed sometime between 3.7 an 3.17. With 3.17 and 3.18 Tux renders correctly.
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