Recent content by danallenhtn

  1. danallenhtn

    Question Intermittent Flickering External Display - Basic Electronics

    Thank you for responding. I bet you are right. One thing I am curious about. I have been running an HDMI cable for years without problems of any kind. Any ideas why problem would appear after all this time running HDMI and why switching to DP would make a difference?
  2. danallenhtn

    Question Intermittent Flickering External Display - Basic Electronics

    Thank you for responding to my question. I don't know much about how flat panel displays work. The reason I was suspecting the power supply is I have the impression the problem most likely is caused by bad capacitor used for transforming 120 AC to 14 DC. Since the power cord has a transformer...
  3. danallenhtn

    Question It's 2021 - Your Distro of Choice and Why?

    Best Balance of Excellence in Various Areas of Excellence Debian reminds me of the world's best bicycle tires for road bikes. You can pick the best tire for racing, or the tire most able to resist puncture, or the tire with the best grip, or the tire that will last the longest, but you cannot...
  4. danallenhtn

    Question Intermittent Flickering External Display - Basic Electronics

    Looking for help understanding what hardware is the failing culprit. U28D590 Display Samsung 4k 28" Been running current configuration for years Computer is 2012 MacPro (cheese grater) AMD Radeon HD 7xxx 3 GB Graphics Card HDMi out of computer to HDMI port (1.4) on monitor Symptom: varies ...
  5. danallenhtn

    Radeon 5770 MiniDisplay Port to HDMI - Signal Not Recognized

    The Radeon 5770 is in a 2012 Mac Pro computer from Apple. The HDMI monitor is model 12757fh from AOC. The adaptor, cable and monitor all work perfectly when connected to a new Mac Mini, but the monitor cannot recognize the signal from the Mac Pro. It's getting a signal, it just cannot deal...