Intel insists Mac Mini HDMI fix inbound
Apple to configure cure
Intel says it has addressed the Mac Mini flickering HDMI issue and informed those affected that Apple will configure a firmware fix having now been provided with amended drivers.
A growing number of owners have complained of poor colours, snow-like interference and display blackouts when connecting a Mac Mini to an external display  through the HDMI port.
An identical issue affected various Windows and Linux machines equipped with the same integrated Intel HD 4000 graphics, but Intel includes a fix with its latest drivers. 
However, Macs use an alternate system to control the base hardware, so with Intel having amended one side of the process, the ball is in Apple's court to provide its own relevant update.
"Your OEM (Apple) will provide the driver with the fix when they are done configuring our driver (that has the fix). An ETA on this is currently unknown," said Intel.
Apple's Mac Mini 2012: Fuzz pot
With the chipmaker's confirmation that Cupertino has the drivers it needs, hopefully the renovation will be rolled out fairly pronto. After all, Apple has apparently been running round like headless chickens over this one until now.
One disgruntled owner told Reg Hardware that the company re-"captured" his Mac Mini weeks ago to asses the issue and only recently replaced it, doing so with a model that packs a slower processor and basic-level hard drive. He wasn't too chuffed to say the least.
Either way, Apple has started developer seeding of OS X 10.8.3, which has particular focus on graphics drivers. That's currently in beta and while it doesn't appear to mend these particular matters right now, it is expected to by the time the build goes gold. ®