How to squash a nasty screen blackout bug

Hi Mac experts,
I've been trying, without success, to squash a nasty Mac bug that causes my screen to black out during work or causes it to never wake up after sleep, the latter being more frequent. It's supremely annoying since it interrupts work a couple of times a week and, embarrassingly, happens more often during public presentations, possibly due to the 2nd screen. In some cases a single hard reset revives the MacBook, in others I have to reset several times for the screen to become accessible again. When the bug happens, the OS is still running (key feedback sound, keyboard backlighting can be adjusted) but the screen is completely black.
It's been an unfixed bug through several OS versions from 10.8, 10.9, to the latest 10.10 (Yosemite). The usual remedies suggested in forums did not work (see below). I'm out of ideas here, hopefully you are not.
My specs: MacBook Pro Retina 15'', purchased 2012.
My recent crash reports can be viewed here: https://drive.google.com/folderview?id=0B_EEMeI_SbKxMlZSVHhXdm1QZWs&usp=sharing
I have tried the following:
udpates did nothing; crashes under all OSs (10.8, 10.9, 10.10)
reinstalled 10.9 fresh and migrated my data; still bugged
startup in Safe mode (disables kernel extensions); crash on the same day
adjusting the energy prefs (disable switching, deactive all additional wake up conditions); did nothing
SMC and NVRAM resets did nothing
This is a bug shared by many users. Apple obviously is not fixing it. One user reported that in his specific case it wasn't a hardware issue. Replacing the motherboard did nothing (http://bit.ly/1E5cEAR). Here are some related reports: forums.macrumors.com/showthread.php?t=1722832 (2014-4; solution: detaching from ext. screen before sleep), discussions.apple.com/thread/6014780?start=0&tstart=0 (2014-03; not resolved), discussions.apple.com/thread/5665501 (2013-12, not resolved), discussions.apple.com/thread/5548226 (2013-11 to 2014, not resolved), forums.macrumors.com/showthread.php?t=1553654 (2013-03; solution: removal of Bresink driver), bit.ly/1wdVO1C (2012-8, problem w Bluetooth, fixed by OS update 10.8.1),..
I hope somebody has a suggestion. Looking forward to your expert insights.
All the best

skywalkr,
Have you taken some screen captures of the trap and dump information?
ThinkPads: S30, T43, X60t, X1, W700ds, IdeaPad Y710, IdeaCentre: A300, IdeaPad K1
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