I've not seen any problems (no black screens, or other problems - display or otherwise) with two 8GB (1.5v, CL10) sodimms installed in a late 2012 (i7) Mac Mini using an 27in LED Cinema Display (MDP model with latest display firmware) connected to the thunderbolt port of course.
  I think there is some other reason for his problems but if anyone else has seen a similar problem with a pair of 8GB sodimms in a Late 2012 mini, send a note (w/ram spec info). I always prefer not to mix ram types/sizes (for stability as well as performance reasons), but had not heard of any issues otherwise in using matched sets of dimms. (Always a chance of defective ram of course but two 'bad' sets in a row are rare unless it's a mfr/batch/spd issue.)

(And BTW - for the reader that asked, the ram (Original/OEM sodimms vs 3rd party) had no effect on the late 2012 mini hibernating after hours of sleep. I explained this in a post (w/apple doc) back in February here on Why 2012 iMac/2012 Mac Mini won't Wake After Hours of Sleep (Hibernates/Powers Off). I've not tested for this w/OS X 10.8.3 however.)

Update: Over the weekend, Kenneth wrote he's had no LED Cinema display or other issues with his i5 Mini using a pair of 1.35v/CL11 sodimms. (Crucial). OWC and Apple oem ram for mini is also 1.35V. (I wrote Larry at OWC about this and he later replied they saw no problems running their 16GB (2x8GB) kit in a 2012 mini.) And on Monday (May 6th) I saw a post in the apple forums from a 2012 mini owner using the same 8GB dimms I have installed (Corsair Vengeance 1.5v/CL10) that after 4+ months of use, one of the dimms failed and then the other. (Later saw another similar report of failures after several months, and frustration over the RMA process.) Mine were a xmas present, bought when they were $80 (for 16GB kit). I'd seen several reports of 1 bad sodimm (out of the box) on these, but you're always much more likely to see problem reports and I can't say what percentage has had failures. (i.e. If their failure rate is higher than normal.)
  

• Is Belkin's Thunderbolt Dock enough to compete with the USB juggernaut?
• Why Fantastically Wealthy Apple Is Borrowing Money
• EFF's privacy report gives Apple (and others) low ratings

• iPhoto: Sharing libraries among multiple users
• OS X: Resetting the SyncServices folder
• iPod: Appears in Windows but not in iTunes
• About the security content of Java for OS X 2013-003 & OS X v10.6 Update 15
  
  (the following docs no archived/no longer updated)
• OS X 10.4 and 10.5: Some Apple menu items appear twice
• OS X Server v10.5, 10.6: Attributes for augmented users
• OS X Server v10.6: Avoid using apostrophes in DHCP static map names
• OS X Server v10.6: Clients logged in with an alias may not see their blog
• OS X Server may classify some inbound messages sent on or after 1/1/2010 as spam
• OS X Server v10.6: OS X v10.5 clients who back up to server via Time Machine should use OS X v10.5.7 or later
• OS X Server v10.6: Configuring service principals in Active Directory when using a disjoint namespace
• Apple Remote Desktop 3.3: Report Window does not appear when using German
• Boot Camp: Windows 7 does not detect Target Disk Mode drives
• Boot Camp 3.0: Cannot Install Windows XP Service Pack 3
• Boot Camp: Installing Windows Vista on Mac Pro non-startup disk
• Boot Camp: Microsoft Vista (SP1) Windows Auto Update error report
• Boot Camp: No audio in Windows Vista after installing Boot Camp drivers
• Boot Camp: 2727 error or restart message when upgrading Boot Camp 2.2 to 3.0
• Boot Camp install halts while installing drivers on Windows XP Pro (Service Pack 2)
• Boot Camp 2.0: Cannot install Windows Vista with LSI Logic 4GB HBA Fibre Channel card installed

• Seagate Enterprise Value HDD (Constellation CS) Review
• Review: Samsung PS64F8500 Plasma TV
• 'Sophisticated' backdoor malware opens up security blackhole in Apache web servers
• Path is spamming address books with unwanted texts and robocalls - again
• Netflix said to eliminate hundreds of classic titles
• Facebook Wins $2.8 Million in Typosquatter Case
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• Intel's new car headlamp makes rain and snow almost invisible
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• Review: Samsung NX300 Camera w/WiFi

Tuesday April 30, 2013 News Archive
• OWC announces Envoy Pro EX USB 3.0 Portable SSD (sponsor blog)
• Belkin announces Availability of Thunderbolt Express Dock
• TrendLabs warns about more Apple ID Phishing scams
• Apple's AirPort Products are Targeted in new Patent Lawsuit
• Apple Planning Six-Part Bond Sale That May Approach Record
• Updated Apple Support/How-To/Troubleshooting Docs:
  - Troubleshooting AirPlay and AirPlay Mirroring
  - iOS: Using Messages
  - iOS: Understanding the SIM PIN
  - iOS: Wi-Fi settings grayed out or dim
  - iOS: Syncing all-day events w/Outlook may cause events to span 2 days
  - iPhone, iPad, iPod: Resetting iTunes sync alerts
  - iPad: Transferring your cellular data plan to an iPad mini or iPad
  - Xsan: Do not share a specific directory from multiple fileservers
  - About the Apple Fibre Channel Status Indicators (archived)
  - OS X v10.6: DNS search order behavior (archived)
• Other News/Reviews/Tech/OT:
  - Review: Kingston SSDNow V300 (120GB/240GB)
  - Review: Toshiba Canvio Connect 750GB
  - Kingston MobileLite Wireless Storage Hub Announced
  - Why Big Companies Are Investing in a Service that Listens to Phone Calls
  - Washington Hospital Hit By $1.03 Million Cyberheist
  - Far Cry 3: Blood Dragon Review (Xbox 360)
  - Movie Review: Iron Man 3

For links to older news pages, see the Archives.