The symptoms became even worse after I rebooted it just now. Was online for a while and then the HDMI display blank out. I could hear the system still on but there was no display coming out from the HDMI. Is this one of those HDMI handshaking issue I've been reading in the forum? Whenever I power cycle the NUC, the issue is gone.
This is really weird. Is my NUC a lemon?
I'm bringing this unit back to the retailer. Hope that it is just a cable issue. If not, most likely the unit is faulty.
I'll try to take a screenshot, but I could not reproduce it again.
My problem could be described as changing green dots/lines in the screen (artifacts) which were evident not only in the Operating System, but also in BIOS, during POST and during OS loading.
My OS is OpenElec v3.95.6 (4.0 Beta 6), but I also installed Windows when I noticed the failure, and there were artifacts there also. The BIOS is v0025. the latest so far.
The problem is that I packed the NUC in the morning to bring it to the retailer. Nothing I could do fixed the green dots/lines, but when I arrived at home at the end of the day, I tried again and the problem was gone!
As soon as I notice it again, be sure I will take a picture which I willl send you immediately.
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Only saw the messages today. Just back from Easter break :-)
Anyway, the symptoms that you have described is the same as mine and I referenced it as a lemon. At least that's what I think after many troubleshooting attempt.
I returned the unit to retailer and was very lucky to be able to replicate the same exact symptoms during POST, BIOS setup and even Windows boot up whereby the artifact will start showing before the screen blank out start occurring.
I've just received an new replacement a few days ago and the issue was gone and I am able to use the NUC as it is meant to be use :-)
My advice, please returned your unit and ask for a warranty. I got mine done in less than 3 days.