The platforms we covered are IvyBridge, SandyBridge, IronLake, PineView and 
GM965
The version of Kernel: (drm-intel-next)64a742fac3a22f57303d8f1b7e347350a1c48254

General speaking, the issue is mainly related to 3 pipe and eDP on IvyBridge.

4 new bugs are filed:
Bug 44250<https://bugs.freedesktop.org/show_bug.cgi?id=44250> - 
[IVB]"[drm:intel_dsm_platform_mux_info] *ERROR* MUX INFO call failed" while 
booting with monitor
Bug 44304<https://bugs.freedesktop.org/show_bug.cgi?id=44304> - [ivb 3pipe] 
"*ERROR* failed to set mode on [CRTC:5]" while plug in the 3th monitor
Bug 44305<https://bugs.freedesktop.org/show_bug.cgi?id=44305> - [IVB]The Edp 
can't work while booting with a monitor
Bug 44309<https://bugs.freedesktop.org/show_bug.cgi?id=44309> - [IVB eDP] 3 
pipe doesn't work with eDP monitor
Old bugs which still exists or just need code merge:
Bug 42263<https://bugs.freedesktop.org/show_bug.cgi?id=42263> - [ILK] Plug in a 
monitor will make the eDP black screen
41976<https://bugs.freedesktop.org/show_bug.cgi?id=41976> [IVB] screen turn to 
be black while switching between console and x-window with 3-pipe active
41917<https://bugs.freedesktop.org/show_bug.cgi?id=41917> [IVB] all three 
screens are frozen while starting gnome-session with 3-pipe active
42731<https://bugs.freedesktop.org/show_bug.cgi?id=42731> [IVB] The whole 
monitor connected to DP port is black screen while hotplugin VGA

Thanks
   --Yi,Sun

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