Comment 58 for bug 855124

Here are the results for the second system:

Ubuntu kernel 3.0.0-12.19:
- All: 315 ms (175 ms with DP1-3 ignored)
- Only HDMI1: 130 ms

With patch from comment 31 (abort early/drm):
- All: 280 ms (140 ms with DP1-3 ignored)
- Only HDMI1: 130 ms

With patch from comment 34 (valid bus/i915):
- All: 280 ms (140 ms with DP1-3 ignored)
- Only HDMI1: 130 ms

I obviously couldn't test with HDMI1 ignored, so that's all outputs vs. only HDMI1. Both patches were equally fast again.